Journal ArticleJournal of Combinatorial Theory. Series A · August 1, 2025
Given a positive integer n, consider a permutation of n objects chosen uniformly at random. In this permutation, we collect maximal subsequences consisting of consecutive numbers arranged in ascending order called blocks. Each block is then merged, and aft ...
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Journal ArticleCommunications in Statistics - Theory and Methods · January 1, 2025
The hyperbolic secant distribution has several generalizations with applications in, for example, finance. In this study, we explore the dual geometric structure of one such generalization: the beta-logistic distribution. Within this family, two special ca ...
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Journal ArticleJournal of Physics A: Mathematical and Theoretical · November 15, 2024
Lattice geometries and random walks on them are of great interest for their applications in different fields such as physics, chemistry, and computer science. In this work, we focus on multi-headed lattices and study properties of the Green functions for t ...
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Journal ArticleComptes Rendus Mathematique · January 1, 2024
The q-analogs of Bernoulli and Euler numbers were introduced by Carlitz in 1948. Similar to recent results on the Hankel determinants for the q-Bernoulli numbers established by Chapoton and Zeng, we perform a parallel analysis for the q-Euler numbers. It i ...
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Journal ArticleContributions to Discrete Mathematics · January 1, 2024
We calculate the Hankel determinants of certain sequences of Bernoulli polynomials. This corresponding Hankel matrix comes from statistically estimating the variance in nonparametric regression. Besides its entries’ natural and deep connection with Bernoul ...
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Journal ArticleOpen Mathematics · January 1, 2023
The method of brackets is a symbolic approach to the computation of integrals over R n {{\mathbb{R}}}^{n} based on a deep result by Ramanujan. Its usefulness to obtain new and difficult integrals has been demonstrated many times in the last few years. This ...
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Journal ArticleContributions to Discrete Mathematics · January 1, 2023
Hankel determinants of sequences related to Bernoulli and Euler numbers have been studied before, and numerous identities are known. However, when a sequence is shifted by one unit, the situation often changes significantly. In this paper we use classical ...
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Journal ArticleInternational Journal of Number Theory · March 1, 2022
We evaluate the Hankel determinants of various sequences related to Bernoulli and Euler numbers and special values of the corresponding polynomials. Some of these results arise as special cases of Hankel determinants of certain sums and differences of Bern ...
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Journal ArticleIntegers · January 1, 2022
Let a and b, with a < b, be two level sites of a general random walk. If we partition [a, b] into n arbitrary subintervals with endpoints a < a1 < a2 < · · · < an−1 < b, then the hitting time from a to b can also be decomposed by the hitting times between ...
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Journal ArticleJournal of Mathematical Analysis and Applications · May 1, 2021
Using continued fraction expansions of certain polygamma functions as a main tool, we find orthogonal polynomials with respect to the odd-index Bernoulli polynomials B2k+1(x) and the Euler polynomials E2k+ν(x), for ν=0,1,2. In the process we also determine ...
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Journal ArticleMathematics in Computer Science · September 1, 2020
We investigate the zonal polynomials, a family of symmetric polynomials that appear in many mathematical contexts, such as multivariate statistics, differential geometry, representation theory, and combinatorics. We present two computer algebra packages, i ...
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