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  2. Gromov's theorem on groups of polynomial growth - Wikipedia

    en.wikipedia.org/wiki/Gromov's_theorem_on_groups...

    A relatively simple proof of the theorem was found by Bruce Kleiner. [5] Later, Terence Tao and Yehuda Shalom modified Kleiner's proof to make an essentially elementary proof as well as a version of the theorem with explicit bounds. [6] [7] Gromov's theorem also follows from the classification of approximate groups obtained by Breuillard, Green ...

  3. Non-squeezing theorem - Wikipedia

    en.wikipedia.org/wiki/Non-squeezing_theorem

    The non-squeezing theorem, also called Gromov's non-squeezing theorem, is one of the most important theorems in symplectic geometry. [1] It was first proven in 1985 by Mikhail Gromov. [2] The theorem states that one cannot embed a ball into a cylinder via a symplectic map unless the radius of the ball is less than or equal to the radius of the ...

  4. Gromov's theorem - Wikipedia

    en.wikipedia.org/wiki/Gromov's_theorem

    Gromov's theorem may mean one of a number of results of Mikhail Gromov: One of Gromov's compactness theorems: Gromov's compactness theorem (geometry) in Riemannian geometry; Gromov's compactness theorem (topology) in symplectic topology; Gromov's Betti number theorem Gromov–Ruh theorem on almost flat manifolds

  5. Gromov's compactness theorem (geometry) - Wikipedia

    en.wikipedia.org/wiki/Gromov's_compactness...

    The role of this theorem in the theory of Gromov–Hausdorff convergence may be considered as analogous to the role of the Arzelà–Ascoli theorem in the theory of uniform convergence. [2] Gromov first formally introduced it in his 1981 resolution of the Milnor–Wolf conjecture in the field of geometric group theory , where he applied it to ...

  6. Systolic geometry - Wikipedia

    en.wikipedia.org/wiki/Systolic_geometry

    A geodesic on a football illustrating the proof of Gromov's filling area conjecture in the hyperelliptic case (see explanation below).. In mathematics, systolic geometry is the study of systolic invariants of manifolds and polyhedra, as initially conceived by Charles Loewner and developed by Mikhail Gromov, Michael Freedman, Peter Sarnak, Mikhail Katz, Larry Guth, and others, in its ...

  7. Mikhael Gromov (mathematician) - Wikipedia

    en.wikipedia.org/wiki/Mikhael_Gromov_(mathematician)

    Mikhael Leonidovich Gromov (also Mikhail Gromov, Michael Gromov or Misha Gromov; Russian: Михаи́л Леони́дович Гро́мов; born 23 December 1943) is a Russian-French mathematician known for his work in geometry, analysis and group theory.

  8. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    Gromov's theorem on groups of polynomial growth (geometric group theory) Grushko theorem (group theory) Higman's embedding theorem (group theory) Isoperimetric gap (geometric group theory, metric geometry) Jordan–Hölder theorem (group theory) Jordan–Schur theorem (group theory) Jordan's theorem (multiply transitive groups) (group theory)

  9. Growth rate (group theory) - Wikipedia

    en.wikipedia.org/wiki/Growth_rate_(group_theory)

    This fact is a special case of the general theorem of Hyman Bass and Yves Guivarch that is discussed in the article on Gromov's theorem. The lamplighter group has an exponential growth. The existence of groups with intermediate growth, i.e. subexponential but not polynomial was open for many years.