𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Multiply perfect numbers, mersenne primes, and effective computability

✍ Scribed by Carl Pomerance


Book ID
105167402
Publisher
Springer
Year
1977
Tongue
English
Weight
503 KB
Volume
226
Category
Article
ISSN
0025-5831

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πŸ“œ SIMILAR VOLUMES


Engel varieties of associative rings and
✍ David M. Riley πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 114 KB

An associative ring R can be viewed as a semigroup via a β€’ b = a + b + ab, and as a Lie ring via [a, b] = abba. It is known that the Lie ring [R] is nilpotent if and only if the adjoint semigroup (R, β€’) is nilpotent (in the sense defined by Mal'cev or by Neumann and Taylor). We prove a similar resul