Michael Atiyah

Source: Wikipedia, the free encyclopedia.

HonFREng
Michael Atiyah in 2007
Born
Michael Francis Atiyah

(1929-04-22)22 April 1929
, London, England
Died11 January 2019(2019-01-11) (aged 89)
Edinburgh, Scotland
Education
  • PhD
    )
Known forAtiyah algebroid
Atiyah conjecture
Atiyah conjecture on configurations
Atiyah flop
Atiyah–Bott formula
Atiyah–Bott fixed-point theorem
Atiyah–Floer conjecture
Atiyah–Hirzebruch spectral sequence
Atiyah–Jones conjecture
Atiyah–Hitchin–Singer theorem
Atiyah–Singer index theorem
Atiyah–Segal completion theorem
ADHM construction
Fredholm module
Eta invariant
K-theory
KR-theory
Pin group
Toric manifold
Awards
Scientific career
FieldsMathematics
Institutions
ThesisSome Applications of Topological Methods in Algebraic Geometry (1955)
Doctoral advisorW. V. D. Hodge[1][2]
Doctoral students
Other notable studentsEdward Witten

Sir Michael Francis Atiyah

HonFREng[4] (/əˈtə/; 22 April 1929 – 11 January 2019) was a British-Lebanese mathematician specialising in geometry.[5] His contributions include the Atiyah–Singer index theorem and co-founding topological K-theory. He was awarded the Fields Medal in 1966 and the Abel Prize
in 2004.

Early life and education

Master

Atiyah was born on 22 April 1929 in

William V. D. Hodge[2] and was awarded a doctorate in 1955 for a thesis entitled Some Applications of Topological Methods in Algebraic Geometry.[1][2]

Atiyah was a member of the

During his time at Cambridge, he was president of The Archimedeans.[11]

Career and research

The Institute for Advanced Study in Princeton, where Atiyah was professor from 1969 to 1972

Atiyah spent the academic year 1955–1956 at the

Cambridge University, where he was a research fellow and assistant lecturer (1957–1958), then a university lecturer and tutorial fellow at Pembroke College, Cambridge (1958–1961). In 1961, he moved to the University of Oxford, where he was a reader and professorial fellow at St Catherine's College (1961–1963).[9] He became Savilian Professor of Geometry and a professorial fellow of New College, Oxford, from 1963 to 1969. He took up a three-year professorship at the Institute for Advanced Study in Princeton after which he returned to Oxford as a Royal Society Research Professor and professorial fellow of St Catherine's College. He was president of the London Mathematical Society from 1974 to 1976.[9]

Atiyah was president of the

InterAcademy Panel on International Issues, the Association of European Academies (ALLEA), and the European Mathematical Society (EMS).[14]

Within the United Kingdom, he was involved in the creation of the

Master of Trinity College, Cambridge (1990–1997),[13] Chancellor of the University of Leicester (1995–2005),[13] and president of the Royal Society of Edinburgh (2005–2008).[15] From 1997 until his death in 2019 he was an honorary professor in the University of Edinburgh. He was a Trustee of the James Clerk Maxwell Foundation.[16]

Atiyah's mathematical collaborators included Raoul Bott, Friedrich Hirzebruch[17] and Isadore Singer, and his students included Graeme Segal, Nigel Hitchin, Simon Donaldson, and Edward Witten.[18] Together with Hirzebruch, he laid the foundations for topological K-theory, an important tool in algebraic topology, which, informally speaking, describes ways in which spaces can be twisted. His best known result, the Atiyah–Singer index theorem, was proved with Singer in 1963 and is used in counting the number of independent solutions to differential equations. Some of his more recent work was inspired by theoretical physics, in particular instantons and monopoles, which are responsible for some corrections in quantum field theory. He was awarded the Fields Medal in 1966 and the Abel Prize in 2004.

Collaborations

Mathematical Institute (now the Department of Statistics) in Oxford
, where Atiyah supervised many of his students

Atiyah collaborated with many mathematicians. His three main collaborations were with

David O. Tall (lambda rings), John A. Todd (Stiefel manifolds), Cumrun Vafa (M-theory), Richard S. Ward (instantons) and Edward Witten (M-theory, topological quantum field theories).[22]

His later research on

Yang–Mills theory, stimulated important interactions between geometry and physics, most notably in the work of Edward Witten.[23]

Atiyah's students included Peter Braam 1987, Simon Donaldson 1983, K. David Elworthy 1967, Howard Fegan 1977, Eric Grunwald 1977, Nigel Hitchin 1972, Lisa Jeffrey 1991, Frances Kirwan 1984,

Peter Kronheimer
1986, Ruth Lawrence 1989, George Lusztig 1971, Jack Morava 1968, Michael Murray 1983, Peter Newstead 1966, Ian R. Porteous 1961, John Roe 1985, Brian Sanderson 1963, Rolph Schwarzenberger 1960, Graeme Segal 1967, David Tall 1966, and Graham White 1982.[2]

Other contemporary mathematicians who influenced Atiyah include Roger Penrose, Lars Hörmander, Alain Connes and Jean-Michel Bismut.[25] Atiyah said that the mathematician he most admired was Hermann Weyl,[26] and that his favourite mathematicians from before the 20th century were Bernhard Riemann and William Rowan Hamilton.[27]

The seven volumes of Atiyah's collected papers include most of his work, except for his commutative algebra textbook;[28] the first five volumes are divided thematically and the sixth and seventh arranged by date.

Algebraic geometry (1952–1958)

twisted cubic curve
, the subject of Atiyah's first paper

Atiyah's early papers on algebraic geometry (and some general papers) are reprinted in the first volume of his collected works.[29]

As an undergraduate Atiyah was interested in classical projective geometry, and wrote his first paper: a short note on

Smith's prize for 1954 for a sheaf-theoretic approach to ruled surfaces,[31] which encouraged Atiyah to continue in mathematics, rather than switch to his other interests—architecture and archaeology.[32]
His PhD thesis with Hodge was on a sheaf-theoretic approach to
minimal models for 3-folds.[37] Atiyah's flop can also be used to show that the universal marked family of K3 surfaces is not Hausdorff.[38]

K-theory (1959–1974)

Möbius band is the simplest non-trivial example of a vector bundle
.

Atiyah's works on K-theory, including his book on K-theory[39] are reprinted in volume 2 of his collected works.[40]

The simplest nontrivial example of a vector bundle is the

Möbius band (pictured on the right): a strip of paper with a twist in it, which represents a rank 1 vector bundle over a circle (the circle in question being the centerline of the Möbius band). K-theory is a tool for working with higher-dimensional analogues of this example, or in other words for describing higher-dimensional twistings: elements of the K-group of a space are represented by vector bundles over it, so the Möbius band represents an element of the K-group of a circle.[41]

Topological K-theory was discovered by Atiyah and

generalized cohomology theory
.

Several results showed that the newly introduced K-theory was in some ways more powerful than ordinary cohomology theory. Atiyah and Todd

Hopf invariant one problem operations by J. F. Adams was very long and complicated, using secondary cohomology operations. Atiyah showed how primary operations in K-theory could be used to give a short solution taking only a few lines, and in joint work with Adams[46]
also proved analogues of the result at odd primes.

Michael Atiyah and Friedrich Hirzebruch (right), the creators of K-theory

The Atiyah–Hirzebruch spectral sequence relates the ordinary cohomology of a space to its generalized cohomology theory.[43] (Atiyah and Hirzebruch used the case of K-theory, but their method works for all cohomology theories).

Atiyah showed

completion of its character ring
:

The same year

isomorphic
to the ordinary K-theory of a space, , which fibred over BG with fibre X:

The original result then followed as a corollary by taking X to be a point: the left hand side reduced to the completion of R(G) and the right to K(BG). See Atiyah–Segal completion theorem for more details.

He defined new generalized homology and cohomology theories called bordism and cobordism, and pointed out that many of the deep results on cobordism of manifolds found by René Thom, C. T. C. Wall, and others could be naturally reinterpreted as statements about these cohomology theories.[51] Some of these cohomology theories, in particular complex cobordism, turned out to be some of the most powerful cohomology theories known.

"Algebra is the offer made by the devil to the mathematician. The devil says: `I will give you this powerful machine, it will answer any question you like. All you need to do is give me your soul: give up geometry and you will have this marvellous machine."

Michael Atiyah[52]

He introduced

Adams conjecture
.

With Hirzebruch he extended the Grothendieck–Riemann–Roch theorem to complex analytic embeddings,[53] and in a related paper[54] they showed that the Hodge conjecture for integral cohomology is false. The Hodge conjecture for rational cohomology is, as of 2008, a major unsolved problem.[55]

The

Clifford algebras;[58] although this paper did not have a proof of the periodicity theorem, a proof along similar lines was shortly afterwards found by R. Wood. He found a proof of several generalizations using elliptic operators;[59] this new proof used an idea that he used to give a particularly short and easy proof of Bott's original periodicity theorem.[60]

Index theory (1963–1984)

Isadore Singer (in 1977), who worked with Atiyah on index theory

Atiyah's work on index theory is reprinted in volumes 3 and 4 of his collected works.[61][62]

The index of a differential operator is closely related to the number of independent solutions (more precisely, it is the differences of the numbers of independent solutions of the differential operator and its adjoint). There are many hard and fundamental problems in mathematics that can easily be reduced to the problem of finding the number of independent solutions of some differential operator, so if one has some means of finding the index of a differential operator these problems can often be solved. This is what the Atiyah–Singer index theorem does: it gives a formula for the index of certain differential operators, in terms of topological invariants that look quite complicated but are in practice usually straightforward to calculate.[citation needed]

Several deep theorems, such as the

Rochlin's theorem, which follows from the index theorem.[citation needed
]

The index problem for

 genus of a spin manifold, and Atiyah suggested that this integrality could be explained if it were the index of the Dirac operator
(which was rediscovered by Atiyah and Singer in 1961).

The first announcement of the Atiyah–Singer theorem was their 1963 paper.[65] The proof sketched in this announcement was inspired by Hirzebruch's proof of the Hirzebruch–Riemann–Roch theorem and was never published by them, though it is described in the book by Palais.[66] Their first published proof[67] was more similar to Grothendieck's proof of the Grothendieck–Riemann–Roch theorem, replacing the cobordism theory of the first proof with K-theory, and they used this approach to give proofs of various generalizations in a sequence of papers from 1968 to 1971.

Instead of just one elliptic operator, one can consider a family of elliptic operators parameterized by some space Y. In this case the index is an element of the K theory of Y, rather than an integer.

complex K-theory is not always injective.[69]

Atiyah's former student Graeme Segal (in 1982), who worked with Atiyah on equivariant K-theory

With Bott, Atiyah found an analogue of the

Lefschetz fixed-point formula for elliptic operators, giving the Lefschetz number of an endomorphism of an elliptic complex in terms of a sum over the fixed points of the endomorphism.[70] As special cases their formula included the Weyl character formula, and several new results about elliptic curves with complex multiplication, some of which were initially disbelieved by experts.[71]
Atiyah and Segal combined this fixed point theorem with the index theorem as follows. If there is a compact
group action of a group G on the compact manifold X, commuting with the elliptic operator, then one can replace ordinary K-theory in the index theorem with equivariant K-theory
. For trivial groups G this gives the index theorem, and for a finite group G acting with isolated fixed points it gives the Atiyah–Bott fixed point theorem. In general it gives the index as a sum over fixed point submanifolds of the group G.[72]

Atiyah

J. Bernstein, and discussed by Atiyah.[74]

As an application of the equivariant index theorem, Atiyah and Hirzebruch showed that manifolds with effective circle actions have vanishing

(Lichnerowicz showed that if a manifold has a metric of positive scalar curvature then the Â-genus vanishes.)

With Elmer Rees, Atiyah studied the problem of the relation between topological and holomorphic vector bundles on projective space. They solved the simplest unknown case, by showing that all rank 2 vector bundles over projective 3-space have a holomorphic structure.[76] Horrocks had previously found some non-trivial examples of such vector bundles, which were later used by Atiyah in his study of instantons on the 4-sphere.

Raoul Bott, who worked with Atiyah on fixed point formulas and several other topics

Atiyah, Bott and Vijay K. Patodi[77] gave a new proof of the index theorem using the heat equation.

If the

Atiyah–Patodi–Singer eta invariant. This resulted in a series of papers on spectral asymmetry,[78] which were later unexpectedly used in theoretical physics
, in particular in Witten's work on anomalies.

The lacunas discussed by Petrovsky, Atiyah, Bott and Gårding are similar to the spaces between shockwaves of a supersonic object.

The fundamental solutions of linear

I. G. Petrovsky
, who found topological conditions describing which regions were lacunas. In collaboration with Bott and Lars Gårding, Atiyah wrote three papers updating and generalizing Petrovsky's work.[79]

Atiyah

semisimple Lie groups. In the course of this work they found a more elementary proof of Harish-Chandra's fundamental theorem on the local integrability of characters of Lie groups.[82]

With H. Donnelly and I. Singer, he extended Hirzebruch's formula (relating the signature defect at cusps of Hilbert modular surfaces to values of L-functions) from real quadratic fields to all totally real fields.[83]

Gauge theory (1977–1985)

On the left, two nearby monopoles of the same polarity repel each other, and on the right two nearby monopoles of opposite polarity form a dipole. These are abelian monopoles; the non-abelian ones studied by Atiyah are more complicated.

Many of his papers on gauge theory and related topics are reprinted in volume 5 of his collected works.

non-linear partial differential equations, in particular the equations for instantons and monopoles. This often involves finding a subtle correspondence between solutions of two seemingly quite different equations. An early example of this which Atiyah used repeatedly is the Penrose transform
, which can sometimes convert solutions of a non-linear equation over some real manifold into solutions of some linear holomorphic equations over a different complex manifold.

In a series of papers with several authors, Atiyah classified all instantons on 4-dimensional Euclidean space. It is more convenient to classify instantons on a sphere as this is compact, and this is essentially equivalent to classifying instantons on Euclidean space as this is conformally equivalent to a sphere and the equations for instantons are conformally invariant. With Hitchin and Singer

invariants of 4-manifolds
. Atiyah and Ward used the Penrose correspondence to reduce the classification of all instantons on the 4-sphere to a problem in algebraic geometry.
[86] With Hitchin he used ideas of Horrocks to solve this problem, giving the ADHM construction of all instantons on a sphere; Manin and Drinfeld found the same construction at the same time, leading to a joint paper by all four authors.[87] Atiyah reformulated this construction using quaternions and wrote up a leisurely account of this classification of instantons on Euclidean space as a book.[88]

The mathematical problems that have been solved or techniques that have arisen out of physics in the past have been the lifeblood of mathematics.

Michael Atiyah[89]

Atiyah's work on instanton moduli spaces was used in Donaldson's work on

Donaldson invariants, which revolutionized the study of smooth 4-manifolds, and showed that they were more subtle than smooth manifolds in any other dimension, and also quite different from topological 4-manifolds. Atiyah described some of these results in a survey talk.[90]

Green's functions for linear partial differential equations can often be found by using the Fourier transform to convert this into an algebraic problem. Atiyah used a non-linear version of this idea.[91] He used the Penrose transform to convert the Green's function for the conformally invariant Laplacian into a complex analytic object, which turned out to be essentially the diagonal embedding of the Penrose twistor space into its square. This allowed him to find an explicit formula for the conformally invariant Green's function on a 4-manifold.

In his paper with Jones,

homology groups in a certain range of dimensions, and suggested that it might induce isomorphisms of homology groups in the same range of dimensions. This became known as the Atiyah–Jones conjecture, and was later proved by several mathematicians.[93]

Harder and M. S. Narasimhan described the cohomology of the moduli spaces of stable vector bundles over Riemann surfaces by counting the number of points of the moduli spaces over finite fields, and then using the Weil conjectures to recover the cohomology over the complex numbers.[94] Atiyah and

Yang–Mills equations over a Riemann surface to reproduce and extending the results of Harder and Narasimhan.[95]

An old result due to Schur and Horn states that the set of possible diagonal vectors of an Hermitian matrix with given eigenvalues is the convex hull of all the permutations of the eigenvalues. Atiyah proved a generalization of this that applies to all compact symplectic manifolds acted on by a torus, showing that the image of the manifold under the moment map is a convex polyhedron,[96] and with Pressley gave a related generalization to infinite-dimensional loop groups.[97]

Duistermaat and Heckman found a striking formula, saying that the push-forward of the

F. Kirwan. Witten shortly after applied the Duistermaat–Heckman formula to loop spaces and showed that this formally gave the Atiyah–Singer index theorem for the Dirac operator; this idea was lectured on by Atiyah.[100]

With Hitchin he worked on

hyperkähler. The metric is then used to study the scattering of two monopoles, using a suggestion of N. Manton that the geodesic flow on the moduli space is the low energy approximation to the scattering. For example, they show that a head-on collision between two monopoles results in 90-degree scattering, with the direction of scattering depending on the relative phases of the two monopoles. He also studied monopoles on hyperbolic space.[103]

Atiyah showed[104] that instantons in 4 dimensions can be identified with instantons in 2 dimensions, which are much easier to handle. There is of course a catch: in going from 4 to 2 dimensions the structure group of the gauge theory changes from a finite-dimensional group to an infinite-dimensional loop group. This gives another example where the moduli spaces of solutions of two apparently unrelated nonlinear partial differential equations turn out to be essentially the same.

Atiyah and Singer found that anomalies in quantum field theory could be interpreted in terms of index theory of the Dirac operator;[105] this idea later became widely used by physicists.

Later work (1986–2019)

topological quantum field theories
was influenced by Atiyah

Many of the papers in the 6th volume[106] of his collected works are surveys, obituaries, and general talks. Atiyah continued to publish subsequently, including several surveys, a popular book,[107] and another paper with Segal on twisted K-theory.

One paper[108] is a detailed study of the Dedekind eta function from the point of view of topology and the index theorem.

Several of his papers from around this time study the connections between

Donaldson invariants
.

He studied

projective 3-space
.

Several papers

Nahm's equation, and introduced the Atiyah conjecture on configurations
.

With

manifolds with G2 holonomy
. These papers seem to be the first time that Atiyah worked on exceptional Lie groups.

In his papers with M. Hopkins[117] and G. Segal[118] he returned to his earlier interest of K-theory, describing some twisted forms of K-theory with applications in theoretical physics.

In October 2016, he claimed[119] a short proof of the non-existence of complex structures on the 6-sphere. His proof, like many predecessors, is considered flawed by the mathematical community, even after the proof was rewritten in a revised form.[120][121]

At the 2018 Heidelberg Laureate Forum, he claimed to have solved the Riemann hypothesis, Hilbert's eighth problem, by contradiction using the fine-structure constant. Again, the proof did not hold up and the hypothesis remains one of the six unsolved Millennium Prize Problems in mathematics, as of 2024.[122][123]

Bibliography

Books

This subsection lists all books written by Atiyah; it omits a few books that he edited.

Selected papers

Awards and honours

The premises of the Royal Society, where Atiyah was president from 1990 to 1995

In 1966, when he was thirty-seven years old, he was awarded the Fields Medal,[124] for his work in developing K-theory, a generalized Lefschetz fixed-point theorem and the Atiyah–Singer theorem, for which he also won the Abel Prize jointly with Isadore Singer in 2004.[125] Among other prizes he has received are the

Benjamin Franklin Medal for Distinguished Achievement in the Sciences of the American Philosophical Society in 1993,[129]
the Jawaharlal Nehru Birth Centenary Medal of the Indian National Science Academy in 1993,[130] the President's Medal from the Institute of Physics in 2008,[131] the Grande Médaille of the French Academy of Sciences in 2010[132] and the Grand Officier of the French Légion d'honneur in 2011.[133]

He was elected a foreign member of the

Royal Spanish Academy of Science, the Accademia dei Lincei and the Moscow Mathematical Society.[9][13] In 2012, he became a fellow of the American Mathematical Society.[135] He was also appointed as a Honorary Fellow[4] of the Royal Academy of Engineering[4]
in 1993.

Atiyah was awarded honorary degrees by the universities of Birmingham, Bonn, Chicago, Cambridge, Dublin, Durham, Edinburgh, Essex, Ghent, Helsinki, Lebanon, Leicester, London, Mexico, Montreal, Oxford, Reading, Salamanca, St. Andrews, Sussex, Wales, Warwick, the American University of Beirut, Brown University, Charles University in Prague, Harvard University, Heriot–Watt University, Hong Kong (Chinese University), Keele University, Queen's University (Canada), The Open University, University of Waterloo, Wilfrid Laurier University, Technical University of Catalonia, and UMIST.[9][13][136][137]

Atiyah was made a

Order of Merit in 1992.[13]

The Michael Atiyah building[138] at the University of Leicester and the Michael Atiyah Chair in Mathematical Sciences[139] at the American University of Beirut were named after him.

Personal life

Atiyah married Lily Brown on 30 July 1955, with whom he had three sons, John, David and Robin. Atiyah's eldest son John died on 24 June 2002 while on a walking holiday in the Pyrenees with his wife Maj-Lis.

Lily Atiyah died on 13 March 2018 at the age of 90[5][7][9] while Sir Michael Atiyah died less than a year later on 11 January 2019, aged 89.[140][141]

See also

References

  1. ^ a b Atiyah, Michael Francis (1955). Some applications of topological methods in algebraic geometry. repository.cam.ac.uk (PhD thesis). University of Cambridge. Archived from the original on 18 November 2017. Retrieved 17 November 2017.
  2. ^ a b c d e Michael Atiyah at the Mathematics Genealogy Project
  3. .
  4. ^ a b c "List of Fellows". Archived from the original on 8 June 2016. Retrieved 28 October 2014.
  5. ^ a b O'Connor, John J.; Robertson, Edmund F., "Michael Atiyah", MacTutor History of Mathematics Archive, University of St Andrews
  6. ^ "ATIYAH, Sir Michael (Francis)". Who's Who. Vol. 2014 (online edition via Oxford University Press ed.). A & C Black. (Subscription or UK public library membership required.)
  7. ^ a b Atiyah, Joe (2007), The Atiyah Family, retrieved 14 August 2008
  8. ^ Raafat, Samir, Victoria College: educating the elite, 1902−1956, archived from the original on 16 April 2008, retrieved 14 August 2008
  9. ^ a b c d e f g Atiyah 1988a, p. xi
  10. ^ "Distinguished mathematician and supporter of Humanism."
  11. ^ "[Presidents Archimedeans]". Archimedeans: Previous Committees and Officers. Retrieved 10 April 2019.
  12. ^ Batra, Amba (8 November 2003), Maths guru with Einstein's dream prefers chalk to mouse. (Interview with Atiyah.), Delhi newsline, archived from the original on 8 February 2009, retrieved 14 August 2008
  13. ^ a b c d e f Atiyah 2004, p. ix
  14. ^ "Atiyah and Singer receive 2004 Abel prize" (PDF), Notices of the American Mathematical Society, 51 (6): 650–651, 2006, archived (PDF) from the original on 10 September 2008, retrieved 14 August 2008
  15. ^ Royal Society of Edinburgh announcement, archived from the original on 20 November 2008, retrieved 14 August 2008
  16. ^ "James Clerk Maxwell Foundation Annual Report and Summary Accounts" (PDF). 2019.
  17. .
  18. ^ "Edward Witten – Adventures in physics and math (Kyoto Prize lecture 2014)" (PDF).
  19. ^ Atiyah 2004, p. 9
  20. ^ Atiyah 1988a, p. 2
  21. ^ Alexander Shapiro at the Mathematics Genealogy Project
  22. ^ Atiyah 2004, pp. xi–xxv
  23. ^ "Edward Witten – Adventures in physics and math" (PDF). Archived (PDF) from the original on 23 August 2016. Retrieved 30 October 2016.
  24. ^ Atiyah 1988a, paper 12, p. 233
  25. ^ Atiyah 2004, p. 10
  26. ^ Atiyah 1988a, p. 307
  27. ^ Interview with Michael Atiyah, superstringtheory.com, archived from the original on 14 September 2008, retrieved 14 August 2008
  28. ^ Atiyah & Macdonald 1969
  29. ^ Atiyah 1988a
  30. ^ Atiyah 1988a, paper 1
  31. ^ Atiyah 1988a, paper 2
  32. ^ Atiyah 1988a, p. 1
  33. ^ Atiyah 1988a, papers 3, 4
  34. ^ Atiyah 1988a, paper 5
  35. ^ Atiyah 1988a, paper 7
  36. ^ Atiyah 1988a, paper 8
  37. ^ Matsuki 2002.
  38. ^ Barth et al. 2004
  39. ^ Atiyah 1989
  40. ^ Atiyah 1988b
  41. .
  42. ^ Atiyah 1988b, paper 24
  43. ^ a b Atiyah 1988b, paper 28
  44. ^ Atiyah 1988b, paper 26
  45. ^ Atiyah 1988a, papers 30,31
  46. ^ Atiyah 1988b, paper 42
  47. ^ Atiyah 1961
  48. ^ Atiyah & Hirzebruch 1961
  49. ^ Segal 1968
  50. ^ Atiyah & Segal 1969
  51. ^ Atiyah 1988b, paper 34
  52. ^ Atiyah 2004, paper 160, p. 7
  53. ^ a b Atiyah 1988b, paper 37
  54. ^ Atiyah 1988b, paper 36
  55. ^ Deligne, Pierre, The Hodge conjecture (PDF), The Clay Math Institute, archived from the original (PDF) on 27 August 2008, retrieved 14 August 2008
  56. ^ Atiyah 1988b, paper 40
  57. ^ Atiyah 1988b, paper 45
  58. ^ Atiyah 1988b, paper 39
  59. ^ Atiyah 1988b, paper 46
  60. ^ Atiyah 1988b, paper 48
  61. ^ Atiyah 1988c
  62. ^ Atiyah 1988d
  63. ^ Atiyah 1988a, paper 17, p. 76
  64. ^ Gel'fand 1960
  65. ^ Atiyah & Singer 1963
  66. ^ Palais 1965
  67. ^ Atiyah & Singer 1968a
  68. ^ Atiyah 1988c, paper 67
  69. ^ Atiyah 1988c, paper 68
  70. ^ Atiyah 1988c, papers 61, 62, 63
  71. ^ Atiyah 1988c, p. 3
  72. ^ Atiyah 1988c, paper 65
  73. ^ Atiyah 1988c, paper 73
  74. ^ Atiyah 1988a, paper 15
  75. ^ Atiyah 1988c, paper 74
  76. ^ Atiyah 1988c, paper 76
  77. ^ Atiyah, Bott & Patodi 1973
  78. ^ Atiyah 1988d, papers 80–83
  79. ^ Atiyah 1988d, papers 84, 85, 86
  80. ^ Atiyah 1976
  81. ^ Atiyah & Schmid 1977
  82. ^ Atiyah 1988d, paper 91
  83. ^ Atiyah 1988d, papers 92, 93
  84. ^ Atiyah 1988e.
  85. ^ Atiyah 1988e, papers 94, 97
  86. ^ Atiyah 1988e, paper 95
  87. ^ Atiyah 1988e, paper 96
  88. ^ Atiyah 1988e, paper 99
  89. ^ Atiyah 1988a, paper 19, p. 13
  90. ^ Atiyah 1988e, paper 112
  91. ^ Atiyah 1988e, paper 101
  92. ^ Atiyah 1988e, paper 102
  93. ^ Boyer et al. 1993
  94. ^ Harder & Narasimhan 1975
  95. ^ Atiyah 1988e, papers 104–105
  96. ^ Atiyah 1988e, paper 106
  97. ^ Atiyah 1988e, paper 108
  98. ^ Atiyah 1988e, paper 109
  99. ^ Atiyah 1988e, paper 110
  100. ^ Atiyah 1988e, paper 124
  101. ^ Atiyah 1988e, papers 115, 116
  102. ^ Atiyah & Hitchin 1988
  103. ^ Atiyah 1988e, paper 118
  104. ^ Atiyah 1988e, paper 117
  105. ^ Atiyah 1988e, papers 119, 120, 121
  106. ^ Michael Atiyah 2004
  107. ^ Atiyah 2007
  108. ^ Atiyah 2004, paper 127
  109. ^ Atiyah 2004, paper 132
  110. ^ Atiyah 1990
  111. ^ Atiyah 2004, paper 139
  112. ^ Atiyah 2004, papers 141, 142
  113. ^ Atiyah 2004, papers 163, 164, 165, 166, 167, 168
  114. ^ Atiyah 1988a, paper 19, p. 19
  115. ^ Atiyah 2004, paper 169
  116. ^ Atiyah 2004, paper 170
  117. ^ Atiyah 2004, paper 172
  118. ^ Atiyah 2004, paper 173
  119. ].
  120. ^ What is the current understanding regarding complex structures on the 6-sphere? (MathOverflow), retrieved 24 September 2018
  121. ^ Atiyah's May 2018 paper on the 6-sphere (MathOverflow), retrieved 24 September 2018
  122. ^ "Skepticism surrounds renowned mathematician's attempted proof of 160-year-old hypothesis". Science | AAAS. 24 September 2018. Archived from the original on 26 September 2018. Retrieved 26 September 2018.
  123. ^ "Riemann hypothesis likely remains unsolved despite claimed proof". Archived from the original on 24 September 2018. Retrieved 24 September 2018.
  124. ^ Fields medal citation: Cartan, Henri (1968), "L'oeuvre de Michael F. Atiyah", Proceedings of International Conference of Mathematicians (Moscow, 1966), Izdatyel'stvo Mir, Moscow, pp. 9–14
  125. ^ "2004: Sir Michael Francis Atiyah and Isadore M. Singer". www.abelprize.no. Retrieved 22 August 2022.
  126. ^ Royal archive winners 1989–1950, archived from the original on 9 June 2008, retrieved 14 August 2008
  127. ^ Sir Michael Atiyah FRS, Newton institute, archived from the original on 31 May 2008, retrieved 14 August 2008
  128. ^ Copley archive winners 1989–1900, archived from the original on 9 June 2008, retrieved 14 August 2008
  129. ^ "Benjamin Franklin Medal for Distinguished Achievement in the Sciences Recipients". American Philosophical Society. Archived from the original on 24 September 2012. Retrieved 27 November 2011.
  130. ^ Jawaharlal Nehru Birth Centenary Medal, archived from the original on 10 July 2012, retrieved 14 August 2008
  131. ^ 2008 President's medal, retrieved 14 August 2008
  132. ^ La Grande Medaille, archived from the original on 1 August 2010, retrieved 25 January 2011
  133. ^ Legion d'honneur, archived from the original on 24 September 2011, retrieved 11 September 2011
  134. ^ "Book of Members, 1780-2010: Chapter A" (PDF). American Academy of Arts and Sciences. Archived (PDF) from the original on 10 May 2011. Retrieved 27 April 2011.
  135. ^ List of Fellows of the American Mathematical Society Archived 5 August 2013 at the Wayback Machine, retrieved 3 November 2012.
  136. ^ "Heriot-Watt University Edinburgh: Honorary Graduates". www1.hw.ac.uk. Archived from the original on 18 April 2016. Retrieved 4 April 2016.
  137. ^ Honorary Doctorates, Charles University in Prague, retrieved 4 May 2018
  138. ^ The Michael Atiyah building, archived from the original on 9 February 2009, retrieved 14 August 2008
  139. ^ American University of Beirut establishes the Michael Atiyah Chair in Mathematical Sciences, archived from the original on 3 April 2008, retrieved 14 August 2008
  140. ^ "Michael Atiyah 1929-2019". University of Oxford Mathematical Institute. 11 January 2019. Archived from the original on 11 January 2019. Retrieved 11 January 2019.
  141. ^ "A tribute to former President of the Royal Society Sir Michael Atiyah OM FRS (1929 - 2019)". The Royal Society. 11 January 2019. Archived from the original on 11 January 2019. Retrieved 11 January 2019.

Sources

External links

Professional and academic associations
Preceded by 57th President of the Royal Society
1990–1995
Succeeded by
Preceded by
Lord Sutherland of Houndwood
42nd President of the Royal Society of Edinburgh
2005–2008
Succeeded by
Academic offices
Preceded by 35th Master of Trinity College, Cambridge
1990–1997
Succeeded by
Preceded by 4th Chancellor of the University of Leicester
1995–2005
Succeeded by
Awards and achievements
Preceded by Copley Medal
1988
Succeeded by