Results 81 to 90 of about 855 (128)

Removing scalar curvature assumption for Ricci flow smoothing

Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 1968-1989, July 2025.
Abstract In recent work of Chan–Huang–Lee, it is shown that if a manifold enjoys uniform bounds on (a) the negative part of the scalar curvature, (b) the local entropy, and (c) volume ratios up to a fixed scale, then there exists a Ricci flow for some definite time with estimates on the solution assuming that the local curvature concentration is small ...
Adam Martens
wiley   +1 more source

Existence of SRB Measures for A Class of Partially Hyperbolic Attractors in Banach spaces

, 2016
In this paper, we study the existence of SRB measures for infinite dimensional dynamical systems in a Banach space. We show that if the system has a partially hyperbolic attractor with nontrivial finite dimensional unstable directions, then it has an SRB
Lian, Zeng, Liu, Peidong, Lu, Kening
core   +2 more sources

Strong subgroup recurrence and the Nevo–Stuck–Zimmer theorem

Proceedings of the London Mathematical Society, Volume 130, Issue 6, June 2025.
Abstract Let Γ$\Gamma$ be a countable group and Sub(Γ)$\mathrm{Sub}(\Gamma)$ its Chabauty space, namely, the compact Γ$\Gamma$‐space consisting of all subgroups of Γ$\Gamma$. We call a subgroup Δ∈Sub(Γ)$\Delta \in \mathrm{Sub}(\Gamma)$ a boomerang subgroup if for every γ∈Γ$\gamma \in \Gamma$, γniΔγ−ni→Δ$\gamma ^{n_i} \Delta \gamma ^{-n_i} \rightarrow ...
Yair Glasner, Waltraud Lederle
wiley   +1 more source

On solvability of the impulsive Cauchy problem for integro-differential inclusions with non-densely defined operators. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Benedetti I, Obukhovskii V, Taddei V.
europepmc   +1 more source

Existence of solutions for mixed Volterra-Fredholm integral equations

Electronic Journal of Differential Equations, 2012
In this article, we give some results concerning the continuity of the nonlinear Volterra and Fredholm integral operators on the space $L^{1}[0,infty)$.
Asadollah Aghajani, Yaghoub Jalilian, Kishin Sadarangani   +2 more
doaj  

Orbits of linear operators and Banach space geometry

, 2012
Let $T$ be a bounded linear operator on a (real or complex) Banach space $X$. If $(a_n)$ is a sequence of non-negative numbers tending to 0. Then, the set of $x \in X$ such that $\|T^nx\| \geqslant a_n \|T^n\|$ for infinitely many $n$'s has a complement ...
Augé, Jean-Matthieu
core   +1 more source

Structure and dimension of global branches of solutions to multiparameter nonlinear equations

, 1985
A general study of the dimension and connectivity properties of branches of solutions of equations depending on n-parameters are studied using the homotopy properties of 0-epi ...
Ize, J., Massabò, I., Pejsachowicz, Jacobo, Vignoli, A.   +3 more
core   +1 more source

Existence theory for nonlinear volterra integral and differential equations

Journal of Inequalities and Applications, 2001
In this paper we prove the existence theorems for the integrodifferential equation where in first part are functions with values in a Banach space and the integral is taken in the sense of Bochner. In second part are weakly–weakly sequentially
Sikorska Aneta
doaj  

Solvability of nonlinear integral equations of product type

Electronic Journal of Differential Equations, 2018
This article concerns nonlinear functional integral equations of product type. The first two equations set on a the positive half-axis encompass different classes of nonlinear integral equations and may involve the product of finitely many integral ...
Bilal Boulfoul, Azzeddine Bellour, Smail Djebali   +2 more
doaj  

On the Krasnoselskii-type fixed point theorems for the sum of continuous and asymptotically nonexpansive mappings in Banach spaces

Journal of Inequalities and Applications, 2011
In this article, we prove some results concerning the Krasnoselskii theorem on fixed points for the sum A + B of a weakly-strongly continuous mapping and an asymptotically nonexpansive mapping in Banach spaces.
Arunchai Areerat, Plubtieng Somyot
doaj