• The non-squeezing theorem, also called Gromov's non-squeezing theorem, is one of the most important theorems in symplectic geometry. It was first proven...
    8 KB (1,259 words) - 20:16, 9 July 2024
  • compactness theorem (topology) in symplectic topology Gromov's Betti number theorem [ru] Gromov–Ruh theorem on almost flat manifolds Gromov's non-squeezing theorem...
    716 bytes (97 words) - 01:43, 12 April 2025
  • where energy may be transferred to internal degrees of freedom. The non-squeezing theorem, which applies to all symplectic maps (the Hamiltonian is a symplectic...
    25 KB (4,046 words) - 15:56, 2 April 2025
  • Thumbnail for Mikhael Gromov (mathematician)
    theory and the monotonicity formula for minimal surfaces, is the "non-squeezing theorem," which provided a striking qualitative feature of symplectic geometry...
    48 KB (3,749 words) - 18:26, 9 July 2025
  • (differential geometry) Non-squeezing theorem (symplectic geometry) Rashevsky–Chow theorem (control theory) Rauch comparison theorem (Riemannian geometry)...
    78 KB (6,296 words) - 20:31, 6 July 2025
  • Thumbnail for Arrow's impossibility theorem
    of logically-consistent majority rule; Arrow's theorem generalizes Condorcet's findings to include non-majoritarian rules like collective leadership or...
    72 KB (6,839 words) - 05:37, 16 July 2025
  • Thumbnail for Maurice A. de Gosson
    Gosson was the first to prove that Mikhail Gromov's symplectic non-squeezing theorem (also called the Principle of "the Symplectic Camel") allowed the...
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  • is nonempty and contractible. Gromov used this theory to prove a non-squeezing theorem concerning symplectic embeddings of spheres into cylinders. Gromov...
    7 KB (1,045 words) - 16:59, 16 May 2025
  • Thumbnail for Center squeeze
    ISBN 978-3-642-02838-0. By eliminating the squeezing effect, Approval Voting would encourage the election of consensual candidates. The squeezing effect is typically observed...
    50 KB (5,152 words) - 17:29, 1 July 2025
  • Thumbnail for Median voter theorem
    In political science and social choice, Black's median voter theorem says that if voters and candidates are distributed along a political spectrum, any...
    34 KB (4,092 words) - 20:29, 14 July 2025
  • Thumbnail for Squeeze mapping
    backward. Indeed, the area of any hyperbolic sector is invariant under squeezing. For another approach to a flow with hyperbolic streamlines, see Potential...
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  • Thumbnail for May's theorem
    be seen as the mirror analogue of that theorem. Note that anonymity is a stronger requirement than Arrow's non-dictatorship. Another way of explaining...
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  • equation Quotient rule Ramsey's theorem Rao–Blackwell theorem Rice's theorem Rolle's theorem Splitting lemma squeeze theorem Sum rule in differentiation Sum...
    6 KB (593 words) - 20:11, 5 June 2023
  • vol. 122, 1995, parts 1,2, pp. 1–34, 35–69 with McDuff: Local Non-Squeezing Theorems and Stability, Geometric and Functional Analalysis, vol. 5, 1995...
    8 KB (1,024 words) - 14:34, 9 July 2025
  • In differential geometry, the Atiyah–Singer index theorem, proved by Michael Atiyah and Isadore Singer (1963), states that for an elliptic differential...
    53 KB (7,553 words) - 10:43, 28 March 2025
  • Thumbnail for Social choice theory
    social choice functions. The Gibbard–Satterthwaite theorem implies that the only rule satisfying non-imposition (every alternative can be chosen) and strategyproofness...
    28 KB (3,035 words) - 22:13, 8 June 2025
  • Thumbnail for Measure (mathematics)
    functional analysis for the spectral theorem. When it is necessary to distinguish the usual measures which take non-negative values from generalizations...
    35 KB (5,636 words) - 07:04, 18 July 2025
  • Thumbnail for Dictatorship mechanism
    when the dictator is indifferent. Non-dictatorship is one of the necessary conditions in Arrow's impossibility theorem. In Social Choice and Individual...
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  • Thumbnail for Unrestricted domain
    independence of irrelevant alternatives, and non-dictatorship. However, the conditions of the theorem can be satisfied if unrestricted domain is removed...
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  • functions of real variables x, as x approaches a point from above or below Squeeze theorem – confirms the limit of a function via comparison with two other functions...
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  • Thumbnail for McKelvey–Schofield chaos theorem
    The McKelvey–Schofield chaos theorem is a result in social choice theory. It states that if preferences are defined over a multidimensional policy space...
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  • Thumbnail for Majority rule
    even to "an aggressive culture and conflict"; however, the median voter theorem guarantees that majority-rule will tend to elect "compromise" or "consensus"...
    20 KB (1,970 words) - 19:36, 24 June 2025
  • Thumbnail for Apportionment paradox
    can resolve observed paradoxes. However, as shown by the Balinski–Young theorem, it is not always possible to provide a perfectly fair resolution that...
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  • Thumbnail for Ranked voting
    These models give rise to an influential theorem—the median voter theorem—attributed to Duncan Black. This theorem stipulates that within a broad range of...
    26 KB (3,143 words) - 11:59, 4 July 2025
  • Thumbnail for Participation criterion
    ISBN 978-3-642-02838-0. By eliminating the squeezing effect, Approval Voting would encourage the election of consensual candidates. The squeezing effect is typically observed...
    27 KB (2,617 words) - 08:38, 2 July 2025
  • Thumbnail for Fourier transform
    S has non-zero curvature. The case when S is the unit sphere in Rn is of particular interest. In this case the Tomas–Stein restriction theorem states...
    177 KB (21,313 words) - 19:14, 8 July 2025
  • Thumbnail for Michael Atiyah
    specialising in geometry. His contributions include the Atiyah–Singer index theorem and co-founding topological K-theory. He was awarded the Fields Medal in...
    83 KB (8,832 words) - 18:56, 18 May 2025
  • Thumbnail for Social welfare function
    individual. This result is known as Harsanyi's utilitarian theorem. By Harsanyi's theorem, any non-utilitarian social choice function will be incoherent;...
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  • Thumbnail for Doctrinal paradox
    choice and judgement aggregation. It extends the voting paradox and Arrow's theorem to situations where the goal is to combine different sources of information...
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  • measure. 4-volume Edison Farah Lebesgue's density theorem Lebesgue measure of the set of Liouville numbers Non-measurable set Vitali set Peano–Jordan measure...
    19 KB (2,946 words) - 20:35, 9 July 2025