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  • surfaces have no metrics with scalar curvature ≤ 0. In the 1960s, André Lichnerowicz found that on a spin manifold, the difference between the square of the...
    35 KB (5,029 words) - 23:36, 30 May 2024
  • Thumbnail for Yvonne Choquet-Bruhat
    was a teaching assistant there and undertook research advised by André Lichnerowicz. From 1949 to 1951 she was a research assistant at the French National...
    18 KB (2,053 words) - 13:45, 20 October 2024
  • continued to undertake research for his doctorate, advised by André Lichnerowicz. He began publishing mathematics papers in 1950. In that year two of...
    20 KB (2,396 words) - 22:53, 19 October 2024
  • Yoneda publishes his famous lemma. Yoneda's Lemma allows one to consider objects in a (small) category as a presheaves. Yoneda lemma plays a critical role in...
    87 KB (273 words) - 15:13, 12 October 2024
  • non-trivial harmonic spinors on the manifold. This is Lichnerowicz' theorem. It is readily seen that Lichnerowicz' theorem is a generalization of Liouville's theorem...
    22 KB (3,393 words) - 03:48, 15 November 2022
  • non-negative. Indeed, much earlier it had been observed by Matsushima and Lichnerowicz that another necessary condition is that the Lie algebra of holomorphic...
    28 KB (4,231 words) - 06:11, 1 March 2024
  • II (see 50) Roger Godement, Les travaux de Hecke, II (see 51) André Lichnerowicz, Variétés localement kählériennes (local Kähler manifolds) Dov Tamari...
    20 KB (2,319 words) - 03:35, 20 March 2024