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In this paper we give an algorithm that calculates the skeleton of a tame covering of curves over a complete discretely valued field. The algorithm relies on the {{tame simultaneous semistable reduction theorem}}, for which we give a short…

代数几何 · 数学 2021-12-10 Paul Alexander Helminck

Asymptotic expansions of Gaussian integrals may often be interpreted as generating functions for certain combinatorial objects (graphs with additional data). In this article we discuss a general approach to all such cases using colored…

组合数学 · 数学 2010-05-18 I. V. Artamkin

This paper is devoted to the explicit computation of generating series for the connection coefficients of two commutative subalgebras of the group algebra of the symmetric group, the class algebra and the double coset algebra. As shown by…

组合数学 · 数学 2011-11-29 Ekaterina A. Vassilieva

We present algorithms to solve coupled systems of linear differential equations, arising in the calculation of massive Feynman diagrams with local operator insertions at 3-loop order, which do {\it not} request special choices of bases.…

符号计算 · 计算机科学 2016-01-11 Jakob Ablinger , Johannes Bluemlein , Abilio de Freitas , Carsten Schneider

We propose a new method for obtaining complete asymptotic expansions in a systematic manner, which is suitable for counting sequences of various graph families in dense regime. The core idea is to encode the two-dimensional array of…

组合数学 · 数学 2024-12-02 Sergey Dovgal , Khaydar Nurligareev

We formulate a framework of polynomial diagrams, which are a generalisation of power diagrams (PDs) and anisotropic power diagrams (APDs) allowing for boundaries between cells to be algebraic curves of a prescribed degree. We show that they…

最优化与控制 · 数学 2026-05-21 David P. Bourne , Maciej Buze , Thomas Gallouët , Quentin Mérigot

We consider a refinement of the partition function of graph homomorphisms and present a quasi-polynomial algorithm to compute it in a certain domain. As a corollary, we obtain quasi-polynomial algorithms for computing partition functions…

组合数学 · 数学 2015-08-04 Alexander Barvinok , Pablo Soberón

Through dualities on representations on tensor powers and symmetric powers respectively, the partition algebra and multiset partition algebra have been used to study long-standing questions in the representation theory of the symmetric…

表示论 · 数学 2023-08-15 Alexander Wilson

We propose a graphical language that accommodates two monoidal structures: a multiplicative one for pairing and an additional one for branching. In this colored PROP, whether wires in parallel are linked through the multiplicative structure…

计算机科学中的逻辑 · 计算机科学 2025-12-29 Kostia Chardonnet , Marc de Visme , Benoît Valiron , Renaud Vilmart

Influence diagrams provide a compact graphical representation of decision problems. Several algorithms for the quick computation of their associated expected utilities are available in the literature. However, often they rely on a full…

人工智能 · 计算机科学 2017-01-19 Manuele Leonelli , Eva Riccomagno , Jim Q. Smith

We consider the extension of the method of Gauss-Newton from complex floating-point arithmetic to the field of truncated power series with complex floating-point coefficients. With linearization we formulate a linear system where the…

数值分析 · 数学 2017-10-27 Nathan Bliss , Jan Verschelde

The simulation of the physical movement of multi-body systems at an atomistic level, with forces calculated from a quantum mechanical description of the electrons, motivates a graph partitioning problem studied in this article. Several…

A new family of polynomials, called cumulant polynomial sequence, and its extensions to the multivariate case is introduced relied on a purely symbolic combinatorial method. The coefficients of these polynomials are cumulants, but depending…

统计理论 · 数学 2016-06-06 E. Di Nardo

In this paper we consider the classical problem of computing linear extensions of a given poset which is well known to be a difficult problem. However, in our setting the elements of the poset are multivariate polynomials, and only a small…

组合数学 · 数学 2021-03-05 Shane Kepley , Konstantin Mischaikow , Lun Zhang

Graphical models represent multivariate and generally not normalized probability distributions. Computing the normalization factor, called the partition function, is the main inference challenge relevant to multiple statistical and…

机器学习 · 计算机科学 2020-09-01 Michael Chertkov , Vladimir Chernyak , Yury Maximov

This work presents the Polynomiogram framework, an integrated computational platform for exploring, visualizing, and generating art from polynomial root systems. The main innovation is a flexible sampling scheme in which two independent…

软件工程 · 计算机科学 2025-12-10 Hoang Duc Nguyen , Anh Van Pham , Hien D. Nguyen

Daily internet communication relies heavily on tree-structured graphs, embodied by popular data formats such as XML and JSON. However, many recent generative (probabilistic) models utilize neural networks to learn a probability distribution…

机器学习 · 计算机科学 2024-08-20 Milan Papež , Martin Rektoris , Tomáš Pevný , Václav Šmídl

We present in this short note a polynomial graph extension procedure that can be used to improve any graph isomorphism algorithm. This construction propagates new constraints from the isomorphism constraints of the input graphs (denoted by…

数据结构与算法 · 计算机科学 2009-03-03 Daniel Cosmin Porumbel

This paper develops new combinatorial approaches to analyze and compute special set partitions, called complementary set partitions, which are fundamental in the study of generalized cumulants. Moving away from traditional graph-based and…

统计理论 · 数学 2025-05-20 Elvira Di Nardo , Giuseppe Guarino

We present a probabilistic graphical model formulation for the graph clustering problem. This enables to locally represent uncertainty of image partitions by approximate marginal distributions in a mathematically substantiated way, and to…

计算机视觉与模式识别 · 计算机科学 2016-01-12 Jörg Hendrik Kappes , Paul Swoboda , Bogdan Savchynskyy , Tamir Hazan , Christoph Schnörr
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