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Let $G$ be a finite group, and let ${\rm{cd}}(G)$ denote the set of degrees of the irreducible complex characters of $G$. Define then the character degree graph $\Delta(G)$ as the (simple undirected) graph whose vertices are the prime…

群论 · 数学 2022-09-16 Silvio Dolfi , Emanuele Pacifici , Lucia Sanus

Processing data on multiple interacting graphs is crucial for many applications, but existing approaches rely mostly on discrete filtering or first-order continuous models, dampening high frequencies and slow information propagation. In…

机器学习 · 计算机科学 2025-09-17 Aref Einizade , Fragkiskos D. Malliaros , Jhony H. Giraldo

Local complement is a graph operation formalized by Bouchet which replaces the neighborhood of a chosen vertex with its edge-complement. This operation induces an equivalence relation on graphs; determining the size of the resulting…

组合数学 · 数学 2026-03-02 Nicholas Connolly , Shin Nishio , Kae Nemoto

Knowledge graphs (KGs), which consist of triples, are inherently incomplete and always require completion procedure to predict missing triples. In real-world scenarios, KGs are distributed across clients, complicating completion tasks due…

机器学习 · 计算机科学 2023-11-20 Maolin Wang , Dun Zeng , Zenglin Xu , Ruocheng Guo , Xiangyu Zhao

A nontrivial connected graph is matching covered if each edge belongs to some perfect matching. For most problems pertaining to perfect matchings, one may restrict attention to matching covered graphs; thus, there is extensive literature on…

组合数学 · 数学 2025-11-10 Rohinee Joshi , Santhosh Raghul , Nishad Kothari

Rapidly shrinking technology node and voltage scaling increase the susceptibility of Soft Errors in digital circuits. Soft Errors are radiation-induced effects while the radiation particles such as Alpha, Neutrons or Heavy Ions, interact…

硬件体系结构 · 计算机科学 2021-04-06 Aneesh Balakrishnan , Thomas Lange , Maximilien Glorieux , Dan Alexandrescu , Maksim Jenihhin

We consider finite quantum systems defined by a mixed set of commutation and anti-commutation relations between components of the Hamiltonian operator. These relations are represented by an anti-commutativity graph which contains a…

高能物理 - 理论 · 物理学 2024-05-29 Vitaly Vanchurin

We present a novel methodology that combines graph and dense segmentation techniques by jointly learning both point and pixel contour representations, thereby leveraging the benefits of each approach. This addresses deficiencies in typical…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Kit Mills Bransby , Greg Slabaugh , Christos Bourantas , Qianni Zhang

Supervised learning with tabular data presents unique challenges, including low data sizes, the absence of structural cues, and heterogeneous features spanning both categorical and continuous domains. Unlike vision and language tasks, where…

机器学习 · 计算机科学 2025-12-18 Yunze Leng , Rohan Ghosh , Mehul Motani

An intense activity is nowadays devoted to the definition of models capturing the properties of complex networks. Among the most promising approaches, it has been proposed to model these graphs via their clique incidence bipartite graphs.…

离散数学 · 计算机科学 2021-03-09 Matthieu Latapy , Thi Ha Duong Phan , Christophe Crespelle , Thanh Qui Nguyen

We introduce graph potentials, which are Laurent polynomials associated to (colored) trivalent graphs. We show that the birational type of the graph potential only depends on the homotopy type of the colored graph, and use this to define a…

代数几何 · 数学 2023-10-12 Pieter Belmans , Sergey Galkin , Swarnava Mukhopadhyay

We introduce a notion of quantum function, and develop a compositional framework for finite quantum set theory based on a 2-category of quantum sets and quantum functions. We use this framework to formulate a 2-categorical theory of quantum…

量子物理 · 物理学 2018-09-07 Benjamin Musto , David Reutter , Dominic Verdon

The Gruenberg-Kegel graph $\Gamma(G)$ associated with a finite group $G$ has as vertices the prime divisors of $|G|$, with an edge from $p$ to $q$ if and only if $G$ contains an element of order $pq$. This graph has been the subject of much…

群论 · 数学 2023-02-01 Peter J. Cameron , Natalia V. Maslova

We propose a deterministic algorithm for approximately counting the number of list colorings of a graph. Under the assumption that the graph is triangle free, the size of every list is at least $\alpha \Delta$, where $\alpha$ is an…

组合数学 · 数学 2007-05-23 David Gamarnik , Dmitriy Katz

The classic lower bound of Kuhn, Moscibroda and Wattenhofer [JACM 2016] states that approximate maximum matching and approximate vertex cover (among other problems) in the LOCAL model require $\Omega(\min\{\sqrt{\frac{\log n}{\log\log n}},…

数据结构与算法 · 计算机科学 2026-05-14 Peter Davies-Peck

For fixed integers $r,\ell \geq 0$, a graph $G$ is called an {\em $(r,\ell)$-graph} if the vertex set $V(G)$ can be partitioned into $r$ independent sets and $\ell$ cliques. The class of $(r, \ell)$ graphs generalizes $r$-colourable graphs…

数据结构与算法 · 计算机科学 2015-12-15 Sudeshna Kolay , Fahad Panolan , Venkatesh Raman , Saket Saurabh

This paper concerns fractional $K_s$-decompositions of multipartite graphs. For integers $r\ge s\ge 3$, we consider balanced $r$-partite graphs $G$ on $rn$ vertices. We establish necessary conditions for $G$ to admit a fractional…

组合数学 · 数学 2026-04-29 Tao Feng , Hengrui Liu , Shikang Yu

Several graph decompositions that factorize the determinant of the adjacency matrix isolate a K\H{o}nig-Egerv\'ary part, such as the SD--KE decomposition and the critical independence decomposition of Larson. This suggests that the study of…

组合数学 · 数学 2026-04-29 Kevin Pereyra

We study dynamic $(1-\epsilon)$-approximate rounding of fractional matchings -- a key ingredient in numerous breakthroughs in the dynamic graph algorithms literature. Our first contribution is a surprisingly simple deterministic rounding…

数据结构与算法 · 计算机科学 2024-02-26 Sayan Bhattacharya , Peter Kiss , Aaron Sidford , David Wajc

Knowledge graphs (KGs) consisting of triples are always incomplete, so it's important to do Knowledge Graph Completion (KGC) by predicting missing triples. Multi-Source KG is a common situation in real KG applications which can be viewed as…

计算与语言 · 计算机科学 2020-10-27 Mingyang Chen , Wen Zhang , Zonggang Yuan , Yantao Jia , Huajun Chen