𝔖 Bobbio Scriptorium
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On semigroups with least generating sets

✍ Scribed by Reinhard Thron; Dietmar Kittler


Book ID
110561524
Publisher
Springer
Year
1987
Tongue
English
Weight
330 KB
Volume
36
Category
Article
ISSN
0037-1912

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Let Ο„ be a partition of the positive integer n. A partition of the set X n = {1, 2, . . . , n} is said to be of type Ο„ if the sizes of its classes form the partition Ο„ of n. Given 1 < r < n, an r element subset A of X n and a partition Ο€ of X n are said to be orthogonal if every class of Ο€ meets A i