Results 21 to 30 of about 7,199 (257)

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

Research on P System with Chain Structure and Application and Simulation in Arithmetic Operation

open access: yesDiscrete Dynamics in Nature and Society, 2015
Considering the advantages of distribution and maximum parallelism of membrane computing and availability of discrete Morse theory to deal with discrete structure, in this paper, combining discrete Morse theory and membrane computing, a novel membrane ...
Jing Luan, Zhong Yao
doaj   +1 more source

Multiple Solutions for Biharmonic Equations with Asymptotically Linear Nonlinearities

open access: yesBoundary Value Problems, 2010
The existence of multiple solutions for a class of fourth elliptic equation with respect to the resonance and nonresonance conditions is established by using the minimax method and Morse theory.
Ruichang Pei
doaj   +2 more sources

Existence and Multiplicity of Solutions for Discrete Nonlinear Two-Point Boundary Value Problems

open access: yesDiscrete Dynamics in Nature and Society, 2011
By using Morse theory, the critical point theory, and the character of 𝐾1/2, we consider the existence and multiplicity results of solutions to the following discrete nonlinear two-point boundary value problem −Δ2𝑥(𝑘−1)=𝑓(𝑘,𝑥(𝑘)),𝑘∈ℤ(1,𝑇) subject to 𝑥(0)=
Jianmin Guo, Caixia Guo
doaj   +1 more source

On a theorem of H. Hopf

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
A simple proof of a theorem of H. Hopf [1], via Morse theory, is given.
Takis Sakkalis
doaj   +1 more source

Periodic solutions of second order Hamiltonian systems with nonlinearity of general linear growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper we consider a class of second order Hamiltonian system with the nonlinearity of linear growth. Compared with the existing results, we do not assume an asymptotic of the nonlinearity at infinity to exist. Moreover, we allow the system to be
Guanggang Liu
doaj   +1 more source

Existence of nontrivial solutions for semilinear problems with strictly differentiable nonlinearity

open access: yesAbstract and Applied Analysis, 2006
The existence of a nontrivial solution for semilinear elliptic problems with strictly differentiable nonlinearity is proved. A result of homological linking under nonstandard geometrical assumption is also shown. Techniques of Morse theory are employed.
Sergio Lancelotti
doaj   +2 more sources

Higgs bundles for M-theory on G 2-manifolds

open access: yesJournal of High Energy Physics, 2019
M-theory compactified on G 2-holonomy manifolds results in 4d N $$ \mathcal{N} $$ = 1 supersymmetric gauge theories coupled to gravity. In this paper we focus on the gauge sector of such compactifications by studying the Higgs bundle obtained from a ...
Andreas P. Braun   +3 more
doaj   +1 more source

Smoothing, scattering and a conjecture of Fukaya

open access: yesForum of Mathematics, Pi
In 2002, Fukaya [19] proposed a remarkable explanation of mirror symmetry detailing the Strominger–Yau–Zaslow (SYZ) conjecture [47] by introducing two correspondences: one between the theory of pseudo-holomorphic curves on a Calabi–Yau manifold ...
Kwokwai Chan   +2 more
doaj   +1 more source

Axiomatic S1 Morse–Bott theory [PDF]

open access: yesAlgebraic & Geometric Topology, 2020
In various situations in Floer theory, one extracts homological invariants from "Morse-Bott" data in which the "critical set" is a union of manifolds, and the moduli spaces of "flow lines" have evaluation maps taking values in the critical set. This requires a mix of analytic arguments (establishing properties of the moduli spaces and evaluation maps ...
Hutchings, Michael, Nelson, Jo
openaire   +3 more sources

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