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pro vyhledávání: '"Offin, Daniel"'
Autor:
Contreras, Gonzalo, Offin, Daniel
In this paper we study the relationship between the strict locally minimizing orbits for time dependent lagrangian systems and hyperbolicity properties of the corresponding lagrangian flow.
Externí odkaz:
http://arxiv.org/abs/2410.08426
Classical Sturm non-oscillation and comparison theorems as well as the Sturm theorem on zeros for solutions of second order differential equations have a natural symplectic version, since they describe the rotation of a line in the phase plane of the
Externí odkaz:
http://arxiv.org/abs/2005.08034
It was discovered by Gordon in 1977 that Keplerian ellipses in the plane are minimizers of the Lagrangian action and spectrally stable as periodic points of the associated Hamiltonian flow. The aim of this paper is to give a homotopy theoretical proo
Externí odkaz:
http://arxiv.org/abs/1908.00075
Autor:
Deng, Yanxia, Offin, Daniel
Publikováno v:
Journal of Differential Equations Volume 314, 25 March 2022, Pages 473-490
We give a necessary and sufficient condition for strong stability of low dimensional Hamiltonian systems, in terms of the iterates of a closed orbit and the Conley-Zehnder index. Applications to Mathieu equation and stable harmonic oscillations for f
Externí odkaz:
http://arxiv.org/abs/1807.05171
Autor:
Deng, Yanxia, Offin, Daniel
Publikováno v:
In Journal of Differential Equations 25 March 2022 314:473-490
Autor:
Mansur, Abdalla, Shoaib, Muhammad, Szücs-Csillik, Iharka, Offin, Daniel, Brimberg, Jack, Fgaier, Hedia
Publikováno v:
Mathematics (2227-7390); Oct2024, Vol. 12 Issue 19, p3152, 17p
Publikováno v:
Taiwanese Journal of Mathematics, 2017 Dec 01. 21(6), 1437-1453.
Externí odkaz:
https://www.jstor.org/stable/90016084
Publikováno v:
Transactions of the American Mathematical Society, 2003 Mar 01. 355(3), 1237-1250.
Externí odkaz:
https://www.jstor.org/stable/1194890
Autor:
Offin, Daniel
Publikováno v:
Transactions of the American Mathematical Society, 2000 Jul 01. 352(7), 3323-3338.
Externí odkaz:
https://www.jstor.org/stable/118208
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