{"title":"Fagundes-Mello conjecture over a finite field","authors":"Qian Chen , Yingyu Luo , Yu Wang","doi":"10.1016/j.ffa.2025.102620","DOIUrl":null,"url":null,"abstract":"<div><div>The Fagundes-Mello conjecture asserts that the image of every multilinear polynomial on upper triangular matrix algebras over a field is a vector space, which is an important variation of the old and famous Lvov-Kaplansky conjecture. The Fagundes-Mello conjecture has been solved over an infinite field by Gargate and Mello in 2022. In the present paper, we shall give a result on evaluations of homogenous polynomials with commutative variables over a finite field. As an application, we give a positive answer of the Fagundes-Mello conjecture under a mild condition on the ground field, which covers all results on the Fagundes-Mello conjecture.</div></div>","PeriodicalId":50446,"journal":{"name":"Finite Fields and Their Applications","volume":"105 ","pages":"Article 102620"},"PeriodicalIF":1.2000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Finite Fields and Their Applications","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1071579725000504","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
The Fagundes-Mello conjecture asserts that the image of every multilinear polynomial on upper triangular matrix algebras over a field is a vector space, which is an important variation of the old and famous Lvov-Kaplansky conjecture. The Fagundes-Mello conjecture has been solved over an infinite field by Gargate and Mello in 2022. In the present paper, we shall give a result on evaluations of homogenous polynomials with commutative variables over a finite field. As an application, we give a positive answer of the Fagundes-Mello conjecture under a mild condition on the ground field, which covers all results on the Fagundes-Mello conjecture.
期刊介绍:
Finite Fields and Their Applications is a peer-reviewed technical journal publishing papers in finite field theory as well as in applications of finite fields. As a result of applications in a wide variety of areas, finite fields are increasingly important in several areas of mathematics, including linear and abstract algebra, number theory and algebraic geometry, as well as in computer science, statistics, information theory, and engineering.
For cohesion, and because so many applications rely on various theoretical properties of finite fields, it is essential that there be a core of high-quality papers on theoretical aspects. In addition, since much of the vitality of the area comes from computational problems, the journal publishes papers on computational aspects of finite fields as well as on algorithms and complexity of finite field-related methods.
The journal also publishes papers in various applications including, but not limited to, algebraic coding theory, cryptology, combinatorial design theory, pseudorandom number generation, and linear recurring sequences. There are other areas of application to be included, but the important point is that finite fields play a nontrivial role in the theory, application, or algorithm.