Exactm-covers of Groups by Cosets
β Scribed by Zhi-Wei Sun
- Book ID
- 102570038
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 207 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0195-6698
No coin nor oath required. For personal study only.
β¦ Synopsis
Let G be a group covered by its left cosets a 1 G 1 , . . . , a k G k exactly m times. It is known that
When all the G i are subnormal in G and k i=1 G i = H , we are able to determine the least value of k in terms of m, G, H . For
r is the standard factorization of n. These extend some previous results on disjoint covers.
π SIMILAR VOLUMES
We show that residually finite or word hyperbolic groups which can be decomposed as a finite union of double cosets of a cyclic subgroup are necessarily virtually cyclic, and we apply this result to the study of Frobenius permutation groups. We show that in general, finite double coset decomposition