相关期刊:《Algebra Colloquium》《Chinese Annals of Mathematics,Series B》《Communications in Mathematics and Statistics》《Acta Mathematica Sinica,English Series》更多>>
supported by the NNSF of China(No.12171126,11961017);supported by Ministry of Education of the Republic of Belarus(grant 20211328);supported by the BRFFR(grant F20R-291).
Throughout this paper,all groups are finite and G always denotes a finite group;σis some partition of the set of all primes P.A group G is said to beσ-primary if G is aπ-group for someπ∈σ.Aπ-semiprojector of G[...
supported by 2nd International Conference for Mathematics,Statistics and Information Technology(ICMSIT for short)that held in the Faculty of Science;Tanta University;Egypt,18-20December,2018。
In this paper,the authors first introduce the concept of congruence pairs on the class of decomposable MS-algebras generalizing that for principal MS-algebras(see[13]).They show that every congruence relationθon a de...
Let G be a finite group and H a subgroup of G.We say that H is S-permutable in G if H permutes with every Sylow subgroup of G.A group G is called a generalized smooth group(GS-group)if[G/L]is totally smooth for every ...
The research was partially supported by the National Natural Science Foundation of China (11371237) and a grant of the First-Class Discipline of Universities in Shanghai.
Let a finite group A act on a finite p-group P with |P|〉 p^e, where e is an integer with e 〉 2. In this paper, we show that P is centralized by OP(A^Ap-1) if every non-maximal class p-group of order p^e in P is ...
Supported by the National Natural Science Foundation of China (Grant No.11071229);the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No.10KJD110004);the Postgraduate Innovation Grant of Xuzhou Normal University
Let G be a finite group. Fix a prime divisor p of IGI and a Sylow p-subgroup P of G, let d be the smallest generator number of P and Ma(P) denote a family of maximal subgroups P1, P2 , Pd of P satisfying ∩^di=1 Pi...
Project supported by NSF of China(10571181);Advanced Academic Center of ZSU
Let З be a complete set of Sylow subgroups of a finite group G, that is, З contains exactly one and only one Sylow p-subgroup of G for each prime p. A subgroup of a finite group G is said to be З-permutable if it p...
In this paper, we prove the following result. Let ξ be a saturated formation and ∑ a Hall system of a soluble group G. Let X be a w-solid set of maximal subgroups of G such that ∑ reduces into each element of X. Co...
Project supported by the National Natural Science Foundation of China (No.10271106)the Education Commission of Zhejiang Province of China (No.20030342).
The Ribaucour transformations for flat Lagrangian submanifolds in Cn and CPn via loop group actions are given. As a consequence, the authors obtain a family of new flat Lagrangian submanifolds from a given one via a p...