Results 41 to 50 of about 855 (128)

Integrable Solutions of a Functional-Integral Equation [PDF]

open access: yes, 1989
Sin ...
Banas, Józef, Knap, Zygmunt
core   +2 more sources

Asymptotic behaviour of solutions of nonlinear delay difference equations in Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We consider the second-order nonlinear difference equations of the form Δ(rn−1Δxn−1)+pnf(xn−k)=hn. We show that there exists a solution (xn), which possesses the asymptotic behaviour ‖xn−a∑j=0n−1(1/rj)+b‖=o(1), a,b∈ℝ. In this paper, we extend the results
Anna Kisiolek, Ireneusz Kubiaczyk
doaj   +1 more source

Existence of weak solutions for a boundary value problem of a second order ordinary differential equation

open access: yesBoundary Value Problems, 2018
The aim of this paper is to investigate the existence of weak solutions for a boundary value problem of a second order differential equation. As the main tool, we apply a Krasnosel’skii type fixed point theorem in conjunction with the technique of ...
Shiyou Weng, Fuli Wang
doaj   +1 more source

Instanton Dynamics in the Broken Phase of the Topological Sigma Model [PDF]

open access: yes, 1995
The topological $\sigma$ model with the black hole metric of the target space is considered. It has been shown before that this model is in the phase with BRST-symmetry broken.
Yung, A. V.
core   +2 more sources

Nonlinear Integrodifferential Equations of Mixed Type in Banach Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
We prove two existence theorems for the integrodifferential equation of mixed type: x'(t)=f(t,x(t),∫0tk1(t,s)g(s,x(s))ds,∫0ak2(t,s)h(s,x(s))ds), x(0)=x0, where in the first part of this paper f, g, h, x are functions with values in a Banach space E and ...
Aneta Sikorska-Nowak, Grzegorz Nowak
doaj   +1 more source

A compactness result in approach theory with an application to the continuity approach structure

open access: yes, 2015
We establish a compactness result in approach theory which we apply to obtain a generalization of Prokhorov's Theorem for the continuity approach structure.Comment: 10 ...
Baekeland   +12 more
core   +1 more source

Long-Time Behavior of Solution for a Reactor Model

open access: yesAdvances in Mathematical Physics, 2015
In this paper, we would consider the dynamical behaviors of the chemical model represented by Satnoianu et al. (2001). Using the Kuratowski measure of noncompactness method, we prove the existence of global attractor for the weak solution semiflow of ...
Yantao Guo, Jianwei Shen, Qianqian Zheng
doaj   +1 more source

Quantization of the Jackiw-Teitelboim model

open access: yes, 2009
We study the phase space structure of the Jackiw-Teitelboim model in its connection variables formulation where the gauge group of the field theory is given by local SL(2,R) (or SU(2) for the Euclidean model), i.e.
Constantinidis, Clisthenis P.   +2 more
core   +3 more sources

Sublinear bilipschitz equivalence and the quasiisometric classification of solvable Lie groups

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract We prove a product theorem for sublinear bilipschitz equivalences which generalizes the classical work of Kapovich, Kleiner, and Leeb on quasiisometries between product spaces. We employ our product theorem to distinguish up to quasiisometry certain families of solvable groups which share the same dimension, cone‐dimension and Dehn function ...
Ido Grayevsky, Gabriel Pallier
wiley   +1 more source

Time-Dependent Attractor for the Oscillon Equation [PDF]

open access: yes, 2010
We investigate the asymptotic behavior of the nonautonomous evolution problem generated by the Klein-Gordon equation in an expanding background, in one space dimension with periodic boundary conditions, with a nonlinear potential of arbitrary polynomial ...
Di Plinio, Francesco   +2 more
core   +1 more source

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