Three Examples of Join Computations
نویسندگان
چکیده
منابع مشابه
Three examples of join computations ∗ Assis Azevedo ,
This article answers three questions of J. Almeida. Using combinatorial, algebraic and topological methods, we compute joins involving the pseudovariety of finite groups, the pseudovariety of semigroups in which each idempotent is a right zero and the pseudovariety generated by monoids M such that each idempotent of M\{1} is a left zero.
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ژورنال
عنوان ژورنال: Semigroup Forum
سال: 1998
ISSN: 0037-1912
DOI: 10.1007/pl00005976