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The regularity lemma of Szemeredi asserts that one can partition every graph into a bounded number of quasi-random bipartite graphs. In some applications however, one would like to have a strong control on how quasi-random these bipartite…

组合数学 · 数学 2014-02-26 Subrahmanyam Kalyanasundaram , Asaf Shapira

We give Euler-like recursive formulas for the $t$-colored partition function when $t=2$ or $t=3,$ as well as for all $t$-regular partition functions. In particular, we derive an infinite family of ``triangular number" recurrences for the…

数论 · 数学 2024-12-24 Tapas Bhowmik , Wei-Lun Tsai , Dongxi Ye

In this paper we give a method to associate a graph with an arbitrary density matrix referred to a standard orthonormal basis in the Hilbert space of a finite dimensional quantum system. We study the related issues like classification of…

量子物理 · 物理学 2007-08-28 Ali Saif M. Hassan , Pramod Joag

We prove $\varepsilon$-regularity theorems for varifolds with capillary boundary condition in a Riemannian manifold. These varifolds were first introduced by Kagaya-Tonegawa \cite{KaTo}. We establish a uniform first variation control for…

微分几何 · 数学 2024-06-03 Luigi De Masi , Nick Edelen , Carlo Gasparetto , Chao Li

In this paper, we generalize a few important results in Integer Partitions; namely the results known as Stanley's theorem and Elder's theorem, and the congruence results proposed by Ramanujan for the partition function. We generalize the…

离散数学 · 计算机科学 2011-11-02 Manosij Ghosh Dastidar , Sourav Sen Gupta

We propose a new space-variant regularization term for variational image restoration based on the assumption that the gradient magnitudes of the target image distribute locally according to a half-Generalized Gaussian distribution. This…

图像与视频处理 · 电气工程与系统科学 2019-06-27 Alessandro Lanza , Serena Morigi , Monica Pragliola , Fiorella Sgallari

We study several aspects of the regular deformations of completely integrable systems. Namely, we prove the existence of a Hamiltonian normal form for these deformations and we show the necessary and sufficient conditions a perturbation has…

辛几何 · 数学 2007-05-23 Nicolas Roy

This paper studies bounds in a strong form of regularity for $3$-uniform hypergraphs which was developed by Frankl, Gowers, Kohayakawa, Nagle, R\"{o}dl, Skokan, and Schacht. Regular decompositions of this type involve two structural…

组合数学 · 数学 2025-08-05 C. Terry

Here, we introduce a new definition of regular point for piecewise-linear (PL) functions on combinatorial (PL triangulated) manifolds. This definition is given in terms of the restriction of the function to the link of the point. We show…

代数拓扑 · 数学 2024-11-27 Ryan E. Grady , Anna Schenfisch

This paper has been withdrawn. This paper focuses on the admissibility condition for fractional-order singular system with order $\alpha \in (0,1)$. The definitions of regularity, impulse-free and admissibility are given first, then a…

系统与控制 · 计算机科学 2012-12-19 Zhuang Jiao , Yisheng Zhong

The hypergraph regularity lemma -- the extension of Szemer\'edi's graph regularity lemma to the setting of $k$-uniform hypergraphs -- is one of the most celebrated combinatorial results obtained in the past decade. By now there are several…

组合数学 · 数学 2019-07-18 Guy Moshkovitz , Asaf Shapira

We give a new approach to handling hypergraph regularity. This approach allows for vertex-by-vertex embedding into regular partitions of hypergraphs, and generalises to regular partitions of sparse hypergraphs. We also prove a corresponding…

组合数学 · 数学 2019-01-18 Peter Allen , Ewan Davies , Jozef Skokan

We establish partial regularity for vector-valued solutions to parabolic systems where the coefficients are possibly discontinuous with respect to (x,t). More precisely, we assume a VMO-condition with respect to the (x,t) and continuity…

偏微分方程分析 · 数学 2013-12-19 Taku Kanazawa

We provide new formulas for the coefficients in the partial fraction decomposition of the restricted partition generating function. These techniques allow us to partially resolve a recent conjecture of Sills and Zeilberger. We also describe…

数论 · 数学 2014-01-14 Cormac O'Sullivan

We introduce the notion of Ramsey partition regularity, a generalisation of partition regularity involving infinitary configurations. We provide characterisations of this notion in terms of certain ultrafilters related to tensor products…

Let $A_k(n)$ denote the set of $k$-distinct partitions of $n$, and let $B_k(n)$ be the set of $k$-regular partitions of $n$. Glaisher showed that $\# A_k(n) = \# B_k(n)$. For $k=2$, this equality yields the celebrated Euler's partition…

组合数学 · 数学 2025-11-19 Hongshu Lin , Wenston J. T. Zang

In this note, we first bound the intersection number of the regular simplicial partitions.

度量几何 · 数学 2022-11-09 Zhiheng Zhang

We propose a novel automatic parameter selection strategy for variational imaging problems under Poisson noise corruption. The selection of a suitable regularization parameter, whose value is crucial in order to achieve high quality…

We study the kinetic mean-field limits of the discrete systems of interacting particles used for halftoning of images in the sense of continuous-domain quantization. Under mild assumptions on the regularity of the interacting kernels we…

偏微分方程分析 · 数学 2011-12-08 Massimo Fornasier , Jan Haskovec , Gabriele Steidl

We propose a simple boundary condition regularization strategy to reduce error propagation in pressure field reconstruction from corrupted image velocimetry data. The core idea is to replace the canonical Neumann boundary conditions with…

流体动力学 · 物理学 2024-02-20 Connor Pryce , Lanyu Li , Jared P. Whitehead , Zhao Pan