insolence 发表于 2025-3-23 12:42:09
Calculus of Variations I978-3-662-03278-7Series ISSN 0072-7830 Series E-ISSN 2196-9701Decongestant 发表于 2025-3-23 15:46:16
Fundamentals of Dynamic Systems,oint . is sufficient to guarantee that . is a relative minimizer. In other words, the assumption ...(.) > 0 for the stationary point . implies that . for all . in a sufficiently small neighbourhood of . in ℝ..Emmenagogue 发表于 2025-3-23 21:09:32
Fundamentals of Dynamic Systems,oint . is sufficient to guarantee that . is a relative minimizer. In other words, the assumption ...(.) > 0 for the stationary point . implies that . for all . in a sufficiently small neighbourhood of . in ℝ..QUAIL 发表于 2025-3-24 01:26:13
Huajin Tang,Kay Chen Tan,Zhang Yigiven extremal . of a variational integral . is, in fact, a .. This will be achieved by a method the elements of which were developed by Weierstrass. One of its basic ideas is to consider a whole bundle of extremals instead of a single one, just as one investigates in optics . instead of isolated si他去就结束 发表于 2025-3-24 03:48:00
https://doi.org/10.1007/978-3-662-03278-7Calculus of Variations; Convexity; Gaussian curvature; Hamiltonian Formalism; Lagrangian Formalism; MeanPAD416 发表于 2025-3-24 07:56:41
978-3-642-08074-6Springer-Verlag Berlin Heidelberg 2004meretricious 发表于 2025-3-24 10:52:42
http://reply.papertrans.cn/23/2209/220880/220880_17.pngTAIN 发表于 2025-3-24 16:02:40
Baochang Zhang,Tiancheng Wang,David DoermannIn the first two chapters we have investigated the rate of change of variational integrals ℱ with respect to variations of the dependent variables. In particular, we have derived the necessary conditions . and .for extremizers u of ℱ, and suitable modifications of these conditions were shown to hold for constrained extremizers.bronchodilator 发表于 2025-3-24 19:28:08
https://doi.org/10.1007/978-1-4471-3087-1If .(u) is a real valued function of a real variable which is of class .. on ℝ, then, besides .′(u.) = 0, also the condition .″(u.) ≥ 0 is necessary for .. being a local minimizer of .. Moreover, the conditions . are sufficient for .. furnishing a local minimum.Prostaglandins 发表于 2025-3-25 03:01:45
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