modifier
发表于 2025-3-25 04:30:16
On first integrals of linear systems, Frobenius integrability theorem and linear representations ofble linear vector fields cannot have a common global first integral..This leads us to ask many simple and natural questions, some of them about representations of Lie algebras by Lie algebras of linear vector fields..Some historical comments and abundant references are also provided.
Bravado
发表于 2025-3-25 08:54:25
On the saddle loop bifurcation,ons with the same modulus are (C.,±Identity)-equivalent..A side result states that the Poincaré map of the connection is C.-conjugate to the mapping x↦x...In the last part of the paper is shown how to finish the proof that the Bogdanov-Takens bifurcation has exactly two models for (C.,C.)-equivalence.
HERE
发表于 2025-3-25 15:39:56
https://doi.org/10.1007/978-3-531-90002-5we choose, it serves to illustrate some techniques which are developed for treating similar bifurcation problems when the first order methods are inconclusive. Actually, we are able to treat the bifurcations of all orders.
现代
发表于 2025-3-25 17:50:27
On bifurcation of limit cycles from centers,we choose, it serves to illustrate some techniques which are developed for treating similar bifurcation problems when the first order methods are inconclusive. Actually, we are able to treat the bifurcations of all orders.
conceal
发表于 2025-3-25 20:12:13
http://reply.papertrans.cn/19/1856/185557/185557_25.png
确保
发表于 2025-3-26 02:09:10
http://reply.papertrans.cn/19/1856/185557/185557_26.png
珠宝
发表于 2025-3-26 04:19:51
,Limit cycles and zeroes of Abelian integrals satisfying third order picard — Fuchs equations,
大雨
发表于 2025-3-26 12:12:10
http://reply.papertrans.cn/19/1856/185557/185557_28.png
忘川河
发表于 2025-3-26 15:41:03
http://reply.papertrans.cn/19/1856/185557/185557_29.png
我要沮丧
发表于 2025-3-26 19:43:59
Bifurcation in a quartic polynomial system arising in biology,