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A new class of structured matrices is presented and a closed form formula for their determinant is established. This formula has strong connections with the one for Vandermonde matrices.

Combinatorics · Mathematics 2019-10-31 Augusto Ferrante , Fabrizio Padula , Lorenzo Ntogramatzidis

We consider ordered tuples in finite groups generating nilpotent subgroups. Given an integer $q$ we consider the poset of nilpotent subgroups of class less than $q$ and its corresponding coset poset. These posets give rise to a family of…

Group Theory · Mathematics 2014-02-26 Enrique Torres-Giese

In this paper we propose a method for proving some exponential inequalities based on power series expansion and analysis of derivations of the corresponding functions. Our approach provides a simple proof and generates a new class of…

Classical Analysis and ODEs · Mathematics 2019-10-15 Branko Malesevic , Tatjana Lutovac , Bojan Banjac

We survey some recent developments in the analytic theory of multiple Dirichlet series with arithmetical coefficients on the numerators.

Number Theory · Mathematics 2021-01-20 Kohji Matsumoto

In this paper we study the convergence of multiple Dirichlet L-series. In particular we give an integral representation of the series in the region of convergence by using Abel's summation formula. A certain generalized result is also…

Number Theory · Mathematics 2024-09-26 Kohji Matsumoto , Dilip K. Sahoo

In this paper, a new class of distributions, called Odds xgamma-G (OXG-G) family of distribu- tions is proposed for modeling lifetime data. A comprehensive account of the mathematical proper- ties of the new class including estimation issue…

Statistics Theory · Mathematics 2018-05-11 Sudhansu S. Maiti , Sukanta Pramanik

The Hierarchical Dirichlet Process (HDP) provides a flexible Bayesian nonparametric framework for modeling grouped data with a shared yet unbounded collection of mixture components. While existing applications of the HDP predominantly focus…

Machine Learning · Computer Science 2026-02-16 Naiqi Li

This is a survey on permutation classes for the upcoming book Handbook of Enumerative Combinatorics.

Combinatorics · Mathematics 2015-01-06 Vincent Vatter

We classify the conjugacy classes of p-cycles of type D in alternating groups. This finishes the open cases in arXiv:0812.4628. We also determine all the subracks of those conjugacy classes which are not of type D.

Quantum Algebra · Mathematics 2014-03-05 Fernando Fantino

We present an integral representation formula for a Dirichlet series whose coefficients are the values of the Liouville's arithmetic function.

Number Theory · Mathematics 2013-01-17 Guy Laville

This note considers the notion of divergence-preserving branching bisimilarity. It briefly surveys results pertaining to the notion that have been obtained in the past one-and-a-half decade, discusses its role in the study of expressiveness…

Logic in Computer Science · Computer Science 2020-09-01 Bas Luttik

We introduce a special class of multiple Dirichlet series whose terms are supported on a variety and which admit an Euler product structure. We proposed several conjectures on the analytic properties of these series.

Number Theory · Mathematics 2025-08-21 Shenghao Hua

In this paper, we introduce and study the Dirichlet series enumerating (proper) equivalence classes of full rank subforms/sublattices of a given quadratic form/lattice, focusing on the positive definite binary case. We obtain formulas…

Number Theory · Mathematics 2024-09-10 Daejun Kim , Seok Hyeong Lee , Seungjai Lee

Let W be a Weyl group. We introduce the notion of positive conjugacy class in W. This generalizes the notion of regular elliptic conjugacy class in the sense of Springer.

Representation Theory · Mathematics 2020-09-21 G. Lusztig

Thw purpose of this paper is to present a systemic study of some families of the generalized q-Euler numbers and polynomials of higher order.

Number Theory · Mathematics 2009-12-25 Taekyun Kim

This note provides new closed forms evaluations of a few classes of exponential sums associated with elliptic curves and hyperelliptic curves.

Number Theory · Mathematics 2011-03-23 N. A. Carella

Any permutation has a disjoint cycle decomposition and concept generates an equivalence class on the symmetry group called the cycle-type. The main focus of this work is on permutations of restricted cycle-types, with particular emphasis on…

Combinatorics · Mathematics 2014-06-11 Tewodros Amdeberhan , Victor H. Moll

We construct a random model to study the distribution of class numbers in special families of real quadratic fields $\mathbb Q(\sqrt d)$ arising from continued fractions. These families are obtained by considering periodic continued…

Number Theory · Mathematics 2018-12-17 Alexander Dahl , Vítězslav Kala

Finite mixture models are flexible methods that are commonly used for model-based clustering. A recent focus in the model-based clustering literature is to highlight the difference between the number of components in a mixture model and the…

Methodology · Statistics 2023-08-03 Garritt L. Page , Massimo Ventrucci , Maria Franco-Villoria

The broad class of multivariate unified skew-normal (SUN) distributions has been recently shown to possess important conjugacy properties. When used as priors for the coefficients vector in probit, tobit, and multinomial probit models,…

Methodology · Statistics 2024-08-06 Maicon J. Karling , Daniele Durante , Marc G. Genton