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A generalization of Z-groups

✍ Scribed by María J Wonenburger

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
347 KB
Volume
38
Category
Article
ISSN
0021-8693

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📜 SIMILAR VOLUMES

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## Receiwd 37 h'ovember 1978 A perturbation theory is described \c hich recovers the ordinary Z-exp;msion scheme in the limit Z + -\_ it introduces nonintegg principal quantum numbers and orbit& of analytical form which is more realistic than h) drogen-l&e orbit&.

A generalization to noncommutative group
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✍ Gilles Zemor 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 449 KB

We generalise to noncommutative groups, a theorem of Mann concerning the minimum possible cardinality of the sum of two arbitrary subsets of a finite group. We propose the following generalisation. ## Theorem 1.2. Let G be a$nite group and S a subset of G. Iffor every proper subgroup HofG and ISHI