José Luis Massera

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José Luis Massera
José Luis Massera
Born
José Luis Massera

June 8, 1915
Italy
DiedSeptember 9, 2002 (2002-09-10) (aged 87)
Uruguay
NationalityItalian
Occupation(s)Mathematician, engineer, writer, politician
Political partyCommunist Party of Uruguay
Spouse(s)Carmen Garayalde, Marta Valentini
ChildrenEma, José Pedro
AwardsPremio México de Ciencia y Tecnología (1997)

José Luis Massera (Genoa, Italy, June 8, 1915 – Montevideo, September 9, 2002)[1][2] was a Uruguayan dissident and mathematician who researched the stability of differential equations.

Massera's lemma is named after him. He published over 40 papers during 1940–1970. A militant Communist, he was a political prisoner during 1975–1984. In the 1930s, Julio Rey Pastor gave regular weekend lectures on topology in Montevideo to a group that included Massera. Stimulated by contact with Argentine mathematics, the 1950s saw Uruguay develop a fine school in mathematics, of which Massera was very much a part.[3]

Massera developed new notions of stability, and published several foundational papers and an influential textbook. His results in (Massera 1950) on periodic differential equations have been heavily cited and are referred to as Massera's theorem. His work in (Massera 1949) and (Massera 1956) on the converse to Lyapunov's criterion is also influential, and contain the well known Massera's lemma. His textbook (Massera & Schäffer 1966) is also heavily cited.

After military intervention in Uruguay in 1973,

honoris causa while still being under conviction.[6] He was released in 1984.[7]

Honors

Selected works

References

  1. MR 2067167, archived from the original
    (PDF) on November 23, 2006.
  2. MR 2067168, archived from the original
    (PDF) on November 23, 2006.
  3. ^
    ISBN 0-521-46833-7
    , Bethell
  4. ISBN 90-286-0298-4
    , joyce
  5. ^ See (Vernacchia-Galli 1986, p. 559 and p. 568).
  6. ^ The complete documentation on the awarding, kept in the archives of the Sapienza University of Rome, is partly transcribed and caredully analyzed by Vernacchia-Galli (1986, pp. 559–605).
  7. MR0712764
  8. ^ "10690 Massera (1981 DO3)". Minor Planet Center. Retrieved April 22, 2017.
  9. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved April 22, 2017.

Biographical references

  • Vernacchia-Galli, Jole (1986), "José Luis Massera", Regesto delle lauree honoris causa dal 1944 al 1985, Studi e Fonti per la storia dell'Università di Roma (in Italian and Spanish), vol. 10, Roma: Edizioni Dell'Ateneo, pp. 559–605. The "regest of honoris causa degrees from 1944 to 1985" (English translation of the title) is a detailed and carefully commented regest of all the documents of the official archive of the Sapienza University of Rome pertaining to the
    honoris causa degrees, awarded or not. It includes all the awarding proposals submitted during the considered period, detailed presentations of the work of the candidate, if available, and precise references to related articles published on Italian newspapers and magazines, if the laurea
    was awarded.
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