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We prove the constructive version of Birkhoff's ergodic theorem following Vyugin but trying to separate and state explicitly the combinatorial statement on which this proof is based. We pose some questions related to this statement (and the…

Dynamical Systems · Mathematics 2023-06-23 Alexander Shen

Some errors contained in the author's previous article "An example of Bautin-type bifurcation in a delay differential equation", JMAA, 329(2007), 777-789, are listed and corrected. Original abstract: In a previous paper we gave sufficient…

Dynamical Systems · Mathematics 2014-03-12 Anca Veronica Ion

In this paper, we aim to tackle the questions of existence and multiplicity of solutions to a new class of $\kappa(\xi)$-Kirchhoff-type equation utilizing a variational approach. Further, we research the results from the theory of variable…

General Mathematics · Mathematics 2023-11-21 J. Vanterler da C. Sousa , Kishor D. Kucche , Juan J. Nieto

The paper deals with the study of the existence result for a Kirchhoff elliptic system with additive right hand side and variable parameters by using the sub-super solutions method. Our study is the second result of our previous once in…

Analysis of PDEs · Mathematics 2020-06-11 Mohamed Haiour , Youcef Bouizem , Salah Boulaaras , Rafik Guefaifia

In this note we provide a new proof of the Tikhonov theorem for the infinite time interval and discuss some of its applications.

Classical Analysis and ODEs · Mathematics 2019-12-02 Jacek Banasiak

Starting with the recursive extended Euclid's algorithm, we apply a systematic approach using matrix notation to transform it into an iterative algorithm. The partial correctness proof derived from the transformation turns out to be very…

Discrete Mathematics · Computer Science 2016-07-04 Hing Leung

In this paper we give a new proof of Riemann's well known mapping theorem. The suggested method permits to prove an analog of that theorem for the three dimensional case.

Complex Variables · Mathematics 2011-01-05 Ashot Vagharshakyan

We present a solution of Exercise 1.2.1 of [2] which yields a short new proof of a key step in one of proofs of Brouwer's fixed point theorem, 1910. A few people asked the author about the details of the solution and they might be…

Classical Analysis and ODEs · Mathematics 2025-02-18 N. V. Krylov

In the present paper, we are interested in investigating the existence of positive solutions of a new class of fractional Kirchhoff via the sub and supersolutions technique. For this, we first need to investigate two results through lemmas.

General Mathematics · Mathematics 2023-11-03 J. Vanterler da C. Sousa

We derive a combined analytical and numerical scheme to solve the (1+1)-dimensional differential Kirchhoff system. Here the object is to obtain an accurate as well as an efficient solution process. Purely numerical algorithms typically have…

In this note, the correction to the proof of one theorem in some our previous paper [arXiv:1302.0589] will be given.

Rings and Algebras · Mathematics 2020-02-18 Bui Xuan Hai

We introduce a Nitsche's method for the numerical approximation of the Kirchhoff-Love plate equation under general Robin-type boundary conditions. We analyze the method by presenting a priori and a posteriori error estimates in…

Numerical Analysis · Mathematics 2020-07-02 Tom Gustafsson , Rolf Stenberg , Juha Videman

The paper contains an alternative proof of M. Kontsevich Formality Theorem.

Quantum Algebra · Mathematics 2007-05-23 Dmitry E. Tamarkin

We extend to the anisotropic setting the existence of solutions for the Kirchhoff-Plateau problem and its dimensional reduction.

Analysis of PDEs · Mathematics 2019-07-02 Antonio De Rosa , Luca Lussardi

The purpose of this paper is to introduce a new Kirk type iterative algorithm called Kirk multistep iteration and to study its convergence. We also prove some theorems related with the stability results for the Kirk-multistep and Kirk-SP…

Functional Analysis · Mathematics 2013-06-11 Faik Gürsoy , Vatan Karakaya , B. E. Rhoades

We introduce a stabilised finite element formulation for the Kirchhoff plate obstacle problem and derive both a priori and residual-based a posteriori error estimates using conforming $C^1$-continuous finite elements. We implement the…

Numerical Analysis · Mathematics 2021-02-09 Tom Gustafsson , Rolf Stenberg , Juha Videman

We introduce methods that allow to derive continuous-time versions of various discrete-time ergodic theorems. We then illustrate these methods by giving simple proofs and refinements of some known results as well as establishing new results…

Dynamical Systems · Mathematics 2011-09-09 V. Bergelson , A. Leibman , C. G. Moreira

This work focuses on the development of a posteriori error estimates for fourth-order, elliptic, partial differential equations. In particular, we propose a novel algorithm to steer an adaptive simulation in the context of Kirchhoff plates…

Numerical Analysis · Mathematics 2020-04-22 Pablo Antolin , Annalisa Buffa , Luca Coradello

In this paper, a simple proof for the existence iterative scheme by using two Hilbert spaces due to Kazmi et al. [K. R. Kazmi, R. Ali, M. Furkan, Hybrid iterative method for split monotone \ldots, Numer Algor, 2017] is provided.

Functional Analysis · Mathematics 2021-10-05 Ebrahim Soori , Ravi P. Agarwal

A novel approach to an old symmetry problem is developed. A new proof is given for the following symmetry problem, studied earlier.

Mathematical Physics · Physics 2014-02-14 Alexander G. Ramm