innate
发表于 2025-3-25 05:02:54
Critical Point Theory and Hamiltonian Systems978-1-4757-2061-7Series ISSN 0066-5452 Series E-ISSN 2196-968X
CRUE
发表于 2025-3-25 11:18:17
Marktforschung und Marktdynamik,n 0 ∈ .. This result can be proved using degree theory, a way of making an algebraic count of the zeros, in the closure . of an open bounded set . ⊂ .., of continuous mappings . : . having no zeros on .. A short account of degree theory is given in Section 5.3.
DENT
发表于 2025-3-25 13:43:54
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HPA533
发表于 2025-3-25 18:24:55
Applied Mathematical Scienceshttp://image.papertrans.cn/d/image/240088.jpg
单独
发表于 2025-3-25 20:27:48
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最初
发表于 2025-3-26 03:57:01
Book 1989ndary value problems. In particular, striking results were obtained in the classical problem of periodic solutions of Hamiltonian systems. This book provides a systematic presentation of the most basic tools of critical point theory: minimization, convex functions and Fenchel transform, dual least a
Vital-Signs
发表于 2025-3-26 04:21:19
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无辜
发表于 2025-3-26 11:07:12
Minimax Theorems for Indefinite Functionals,hat there exists points .. ∈ .., .. ∈ R. and a bounded open neighborhood Ω of .. such that .. ∈ ..Ω and . > max(..), φ(..)) whenever . ∈ ∂Ω (that is the case for example if .. and .. are two isolated local minimums of .).
Habituate
发表于 2025-3-26 16:39:38
Die Problematik des Unendlichen,sufficient, as shown by the example of the function . defined by . |.| for . ≠ 0 and .(0) = 1, which does not achieve its infimum 0 although all its minimizing sequences converge to zero. In order that the limit a of a convergent minimizing sequence be such that . = inf ., we have to impose that
Acumen
发表于 2025-3-26 17:32:31
Probleme der mathematischen Logik,hat there exists points .. ∈ .., .. ∈ R. and a bounded open neighborhood Ω of .. such that .. ∈ ..Ω and . > max(..), φ(..)) whenever . ∈ ∂Ω (that is the case for example if .. and .. are two isolated local minimums of .).