• Thumbnail for Jeff Cheeger
    Jeff Cheeger (born December 1, 1943) is a mathematician and Silver Professor at the Courant Institute of Mathematical Sciences of New York University....
    10 KB (944 words) - 10:32, 10 August 2024
  • of a hypersurface that divides M into two disjoint pieces. In 1971, Jeff Cheeger proved an inequality that related the first nontrivial eigenvalue of...
    4 KB (528 words) - 17:31, 14 April 2024
  • after the Cheeger isoperimetric constant of a compact Riemannian manifold. The Cheeger constant is named after the mathematician Jeff Cheeger. Let G be...
    6 KB (873 words) - 02:22, 8 May 2024
  • manifolds of non-negative sectional curvature to that of the compact case. Jeff Cheeger and Detlef Gromoll proved the theorem in 1972 by generalizing a 1969...
    8 KB (926 words) - 08:17, 19 April 2024
  • formulation. Most of the results can be found in the classic monograph by Jeff Cheeger and D. Ebin (see below). The formulations given are far from being very...
    13 KB (1,471 words) - 09:45, 15 August 2024
  • Thumbnail for Grigori Perelman
    at the 1994 International Congress of Mathematicians.[P95a] In 1972, Jeff Cheeger and Detlef Gromoll established their important soul theorem. It asserts...
    65 KB (6,323 words) - 21:45, 28 August 2024
  • Singer (1971, 1973a, 1973b) as an analytic analogue of Reidemeister torsion. Jeff Cheeger (1977, 1979) and Werner Müller (1978) proved Ray and Singer's conjecture...
    14 KB (2,129 words) - 08:30, 2 August 2024
  • interval is a curve of minimal length that connects its endpoints. In 1971, Jeff Cheeger and Detlef Gromoll proved that if a geodesically complete and connected...
    9 KB (930 words) - 15:46, 22 July 2024
  • Thumbnail for Jim Simons
    Bibcode:1971PNAS...68..791C. doi:10.1073/pnas.68.4.791. PMC 389044. PMID 16591916. Cheeger, J.; Simons, J. (1973). "Differential characters and geometric invariants"...
    63 KB (5,007 words) - 06:39, 1 September 2024
  • Thumbnail for Aaron Naber
    dimension. As a postdoc and later assistant professor at MIT, Naber and Jeff Cheeger introduced the notion of quantitative stratification to Lower Ricci curvature...
    10 KB (1,063 words) - 14:15, 1 September 2024