Results 21 to 30 of about 205,497 (296)

Morse Theory and Tilting Sheaves [PDF]

open access: bronzePure and Applied Mathematics Quarterly, 2006
Dedicated to R.
David Nadler
openalex   +5 more sources

Hamiltonian Monodromy and Morse Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2019
Abstract We show that Hamiltonian monodromy of an integrable two degrees of freedom system with a global circle action can be computed by applying Morse theory to the Hamiltonian of the system. Our proof is based on Takens’s index theorem, which specifies how the energy-h Chern number changes when h passes a non-degenerate critical value, and a choice ...
Nikolay Martynchuk   +3 more
openaire   +4 more sources

Discrete Morse theory on digraphs [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2021
In this paper, we give a necessary and sufficient condition that discrete Morse functions on a digraph can be extended to be Morse functions on its transitive closure, from this we can extend the Morse theory to digraphs by using quasi-isomorphism between path complex and discrete Morse complex, we also prove a general sufficient condition for digraphs
Lin, Yong, Wang, Chong, Yau, Shing-Tung
openaire   +2 more sources

Morse theory for manifolds with boundary [PDF]

open access: yesAlgebraic & Geometric Topology, 2016
We develop Morse theory for manifolds with boundary. Besides standard and expected facts like the handle cancellation theorem and the Morse lemma for manifolds with boundary, we prove that, under a topological assumption, a critical point in the interior of a Morse function can be moved to the boundary, where it splits into a pair of boundary critical ...
Borodzik, Maciej   +2 more
openaire   +6 more sources

Prescribing Morse Scalar Curvatures: Pinching and Morse Theory [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2021
AbstractWe consider the problem of prescribing conformally the scalar curvature on compact manifolds of positive Yamabe class in dimension . We prove new existence results using Morse theory and some analysis on blowing‐up solutions under suitable pinching conditions on the curvature function.
Malchiodi, Andrea, Mayer, Martin
openaire   +2 more sources

Multiple Periodic Solutions to Nonlinear Discrete Hamiltonian Systems

open access: yesAdvances in Difference Equations, 2007
An existence result of multiple periodic solutions to the asymptotically linear discrete Hamiltonian systems is obtained by using the Morse index theory.
Bo Zheng
doaj   +2 more sources

Morse oscillator equation of state: An integral equation theory based with virial expansion and compressibility terms

open access: yesHeliyon, 2022
A number of interaction energy types are employed in the vibrations studies, especially in the spectroscopic analysis, such as the harmonic oscillator and Morse oscillator.
Marwan Al-Raeei
doaj  

Morse theory for C*-algebras: a geometric interpretation of some noncommutative manifolds

open access: yesApplied General Topology, 2011
The approach we present is a modification of the Morse theory for unital C*-algebras. We provide tools for the geometric interpretation of noncommutative CW complexes. Some examples are given to illustrate these geometric information.
Vida Milani   +2 more
doaj   +1 more source

Morse theory for the uniform energy [PDF]

open access: yesJournal of Geometry, 2017
In this paper we develop a Morse theory for the uniform energy. We use the one-sided directional derivative of the distance function to study the minimizing properties of variations through closed geodesics. This derivative is then used to define a one-sided directional derivative for the uniform energy which allows us to identify gradient-like vectors
Ian M. Adelstein, Jonathan Epstein
openaire   +3 more sources

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