涌出
发表于 2025-3-21 16:17:01
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TATE
发表于 2025-3-21 23:03:42
Der Weg zur nichteuklidischen Geometrie,A basic problem in mechanics (classical and celestial) is the study of the periodic solutions of Hamiltonian systems
Somber
发表于 2025-3-22 02:39:35
Moderne Verbrauchererziehung und -beratung,When a function has some symmetry properties, one can expect to obtain more precise information on the set of critical points by using, in the minimax approach, correspondingly symmetric sets which are distinguished by a measure of their “size” given by an index theory.
掺和
发表于 2025-3-22 04:47:51
Zur Entwicklung der vertikalen Preisbindung,An autonomous Hamiltonian system . is called . if there exist symmetric matrices .. and .. such that . and ..
attenuate
发表于 2025-3-22 12:03:44
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和谐
发表于 2025-3-22 13:54:46
Wach auf, wach auf, du deutsches Land,After recalling some preliminary notions from differential geometry, this chapter presents the local and global aspects of the theory of .. These manifolds are a natural extension of the notion of non-degenerate critical point.
和谐
发表于 2025-3-22 20:06:03
The Fenchel Transform and Duality,The . of a function ..(..,.) is defined by the implicit formula . when ∇. is invertible. It has the remarkable property that . or, . so that . is such that ..
全面
发表于 2025-3-22 21:26:14
Minimization of the Dual Action,A basic problem in mechanics (classical and celestial) is the study of the periodic solutions of Hamiltonian systems
漫步
发表于 2025-3-23 02:32:41
Lusternik-Schnirelman Theory and Multiple Periodic Solutions with Fixed Energy,When a function has some symmetry properties, one can expect to obtain more precise information on the set of critical points by using, in the minimax approach, correspondingly symmetric sets which are distinguished by a measure of their “size” given by an index theory.
不能平静
发表于 2025-3-23 07:35:37
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