Advances in Number Theory and Applications

A special issue of Axioms (ISSN 2075-1680). This special issue belongs to the section "Algebra and Number Theory".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 2376

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Fakultät für Informatik und Mathematik, Ostbayerische Technische Hochschule Regensburg, Galgenbergstrasse 32, 93053 Regensburg, Germany
Interests: number theory; modular forms; automorphic forms; cryptography; mathematical cryptography; computation of elliptic curves and modular surfaces for cryptographic purposes
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Published Papers (2 papers)

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Research

17 pages, 390 KiB  
Article
Finite and Symmetric Euler Sums and Finite and Symmetric (Alternating) Multiple T-Values
by Jianqiang Zhao
Axioms 2024, 13(4), 210; https://doi.org/10.3390/axioms13040210 - 23 Mar 2024
Cited by 1 | Viewed by 904
Abstract
In this paper, we will study finite multiple T-values (MTVs) and their alternating versions, which are level two and level four variations of finite multiple zeta values, respectively. We will first provide some structural results for level two finite multiple zeta values [...] Read more.
In this paper, we will study finite multiple T-values (MTVs) and their alternating versions, which are level two and level four variations of finite multiple zeta values, respectively. We will first provide some structural results for level two finite multiple zeta values (i.e., finite Euler sums) for small weights, guided by the author’s previous conjecture that the finite Euler sum space of weight, w, is isomorphic to a quotient Euler sum space of weight, w. Then, by utilizing some well-known properties of the classical alternating MTVs, we will derive a few important Q-linear relations among the finite alternating MTVs, including the reversal, linear shuffle, and sum relations. We then compute the upper bound for the dimension of the Q-span of finite (alternating) MTVs for some small weights by rigorously using the newly discovered relations, numerically aided by computers. Full article
(This article belongs to the Special Issue Advances in Number Theory and Applications)
10 pages, 281 KiB  
Article
Vanishing Property of BRST Cohomology for Modified Highest Weight Modules
by Namhee Kwon
Axioms 2023, 12(6), 550; https://doi.org/10.3390/axioms12060550 - 2 Jun 2023
Viewed by 867
Abstract
We construct certain modified highest weight modules which are called quasi highest weight modules in this paper. Using the quasi highest weight modules, we introduce a new category of modules over an affine Lie superalgebra which contains projective covers. We also prove that [...] Read more.
We construct certain modified highest weight modules which are called quasi highest weight modules in this paper. Using the quasi highest weight modules, we introduce a new category of modules over an affine Lie superalgebra which contains projective covers. We also prove that both these projective covers and the quasi highest weight modules satisfy the vanishing property of BRST cohomology. Full article
(This article belongs to the Special Issue Advances in Number Theory and Applications)
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