Groups whose proper Schur rings are commutative

被引:0
|
作者
Cho, Eun-Kyung [1 ]
机构
[1] Pusan Natl Univ, Coll Sci, Dept Math, 2,Busandaehak Ro 63beon Gil, Busan 46241, South Korea
关键词
Dedekind groups; group rings; Schur rings;
D O I
10.1142/S0219498818502067
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A Schur ring A is called Dedekind if the formal sum of every A-subgroup is in the center of A. In this paper, we find all finite groups G such that every proper Schur ring over G is Dedekind. As a corollary of our main theorem, we find all finite groups G such that every proper Schur ring over G is commutative.
引用
收藏
页数:22
相关论文
共 50 条
  • [21] Schur-Weyl duality over commutative rings
    Cruz, Tiago
    COMMUNICATIONS IN ALGEBRA, 2019, 47 (04) : 1619 - 1628
  • [22] Commutative rings whose ideal lattices are complemented
    Chajda, Ivan
    Laenger, Helmut
    ASIAN-EUROPEAN JOURNAL OF MATHEMATICS, 2019, 12 (03)
  • [23] On commutative rings whose maximal ideals are idempotent
    Kourki, Farid
    Tribak, Rachid
    COMMENTATIONES MATHEMATICAE UNIVERSITATIS CAROLINAE, 2019, 60 (03): : 313 - 322
  • [24] AUTOMORPHISM GROUPS OF COMMUTATIVE RINGS
    QUACKENB.RW
    SICHLER, J
    NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1971, 18 (02): : 399 - &
  • [25] FINITE MONOIDS WHOSE GROUPS ARE COMMUTATIVE
    SCHUTZEN.MP
    REVUE FRANCAISE D AUTOMATIQUE INFORMATIQUE RECHERCHE OPERATIONNELLE, 1974, (NR1): : 55 - 61
  • [26] SEMIGROUPS WHOSE PROPER SUBSEMIGROUPS ARE QUASI-COMMUTATIVE
    CHERUBINI, A
    VARISCO, A
    SEMIGROUP FORUM, 1981, 23 (01) : 35 - 48
  • [27] Groups Whose Proper Subgroups are Baer Groups
    Xu Maoqian Teaching Group in Mathematics Guangdong Mechanical College Guangzhou
    Acta Mathematica Sinica,English Series, 1996, (01) : 10 - 17
  • [28] On Schur rings over cyclic groups
    Leung, KH
    Man, SH
    ISRAEL JOURNAL OF MATHEMATICS, 1998, 106 (1) : 251 - 267
  • [29] On schur rings over cyclic groups
    Ka Hin Leung
    Shing Hing Man
    Israel Journal of Mathematics, 1998, 106 : 251 - 267
  • [30] On Schur Rings over Infinite Groups
    Bastian, Nicholas
    Brewer, Jaden
    Humphries, Stephen
    Misseldine, Andrew
    Thompson, Cache
    ALGEBRAS AND REPRESENTATION THEORY, 2020, 23 (03) : 493 - 511