Directed colimits of free commutative semigroups
نویسندگان
چکیده
منابع مشابه
Directed prime graph of non-commutative ring
Prime graph of a ring R is a graph whose vertex set is the whole set R any any two elements $x$ and $y$ of $R$ are adjacent in the graph if and only if $xRy = 0$ or $yRx = 0$. Prime graph of a ring is denoted by $PG(R)$. Directed prime graphs for non-commutative rings and connectivity in the graph are studied in the present paper. The diameter and girth of this graph are also studied in the pa...
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ژورنال
عنوان ژورنال: Journal of Pure and Applied Algebra
سال: 1976
ISSN: 0022-4049
DOI: 10.1016/0022-4049(76)90007-4