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Submodular functions are a fundamental object of study in combinatorial optimization, economics, machine learning, etc. and exhibit a rich combinatorial structure. Many subclasses of submodular functions have also been well studied and…

Data Structures and Algorithms · Computer Science 2013-04-19 Nikhil R. Devanur , Shaddin Dughmi , Roy Schwartz , Ankit Sharma , Mohit Singh

In this short article we present some properties regarding the order and the type of an entire function.

Complex Variables · Mathematics 2021-09-07 Vassilis G. Papanicolaou , Eva Kallitsi , George Smyrlis

Two factorizations of a permutation into products of cycles are equivalent if one can be obtained from the other by repeatedly interchanging adjacent disjoint factors. This paper studies the enumeration of equivalence classes under this…

Combinatorics · Mathematics 2015-12-02 Gregory Berkolaiko , John Irving

We consider a family of integer sequences generated by nonlinear recurrences of the second order, which have the curious property that the terms of the sequence, and integer multiples of the ratios of successive terms (which are also…

Number Theory · Mathematics 2015-07-22 Andrew N. W. Hone

We consider a notion of exact sequences in any -not necessarily exact- pointed category relative to a given (E;M)-factorization structure. We apply this notion to introduce and investigate a new notion of exact sequences of semimodules over…

Category Theory · Mathematics 2011-11-03 Jawad Abuhlail

We discuss some special property of the Farey sequence. We show in each term of the Farey sequence, ratio of the sum of elements in the denominator and the sum of elements in the numerator is exactly two. We also show that the Farey…

Number Theory · Mathematics 2020-12-09 Ripan Saha

Multiple analogues of certain families of combinatorial numbers are recently constructed by the author in terms of well poised Macdonald functions, and some of their fundamental properties are developed. In this paper, we present…

Combinatorics · Mathematics 2016-01-05 Hasan Coskun

In this paper, we establish the irrationality of some open problems in mathematics based on using a recursive formula that generate the complete sequence of numbers. see [1] But before getting into that we begin with some Ramanujan notable…

General Mathematics · Mathematics 2021-09-24 Ali Chtatbi

A generating function for reciprocal binomial coefficients is written down, integral representations of this function are obtained, generating functions for sums of reciprocal binomial coefficients are derived, new identities are obtained,…

Combinatorics · Mathematics 2026-02-10 Dmitry Kruchinin , Vladimir Kruchinin

This short note deals with some applications of the Beta function

General Mathematics · Mathematics 2008-04-22 Donal F. Connon

The concept of sequency holds a fundamental significance in signal analysis using Walsh basis functions. In this study, we closely examine the concept of sequency and explore the properties of sequency-complete and sequency-ordered…

Combinatorics · Mathematics 2024-02-20 Alok Shukla , Prakash Vedula

We study a novel spline-like basis, which we name the "falling factorial basis", bearing many similarities to the classic truncated power basis. The advantage of the falling factorial basis is that it enables rapid, linear-time computations…

Machine Learning · Statistics 2014-10-29 Yu-Xiang Wang , Alex Smola , Ryan J. Tibshirani

In this short note, a companion of [20], we discuss several families of $q$-series identities in connection to false and mock theta functions, characters of modules of vertex algebras, and "sum of tails".

Number Theory · Mathematics 2020-11-03 Chris Jennings-Shaffer , Antun Milas

We present combinatorial and analytical results concerning a Sheffer sequence with a generating function of the form $G(x,z)=Q(z)^{x}Q(-z)^{1-x}$, where $Q$ is a quadratic polynomial with real zeros. By using the properties of Riordan…

Combinatorics · Mathematics 2021-03-03 Gi-Sang Cheon , Tamás Forgács , Hana Kim , Khang Tran

This paper is concentrated on the classification of permutation matrix with the permutation similarity relation, mainly about the canonical form of a permutational similar equivalence class, the cycle matrix decomposition of a permutation…

General Mathematics · Mathematics 2018-07-05 Wenwei Li

In a recent paper a class of infinite Jacobi matrices with discrete character of spectra has been introduced. With each Jacobi matrix from this class an analytic function is associated, called the characteristic function, whose zero set…

Spectral Theory · Mathematics 2015-10-07 F. Stampach , P. Stovicek

In this note, we explore two families of sequences associated to a suitable integer sequence: the gap-sum sequence and the gap-product sequence. These are the sums and the products of consecutive numbers not in the original sequence. We…

Combinatorics · Mathematics 2021-04-13 Paul Barry

We prove that certain functions involving ratios of Gamma functions and the Psi-function belong to generalized Bernstein classes and new properties of generalized Bernstein functions are given.

Classical Analysis and ODEs · Mathematics 2025-07-08 Stamatis Koumandos , Henrik L. Pedersen

Using the reflection formula of the Gamma function, we derive a new formula for the Taylor coefficients of the reciprocal Gamma function. The new formula provides effective asymptotic values for the coefficients even for very small values…

Number Theory · Mathematics 2017-01-16 Lazhar Fekih-Ahmed

We define and study fractional versions of the well-known Gamma subordinator $\Gamma :=\{\Gamma (t),$ $t\geq 0\},$ which are obtained by time-changing $% \Gamma $ by means of an independent stable subordinator or its inverse. Their…

Probability · Mathematics 2013-05-09 Luisa Beghin
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