On Hallian digraphs, permanents and transversals
نویسندگان
چکیده
منابع مشابه
On evaluation of permanents
where the summation is over all injections σ from M . = {1, 2, . . . ,m} to N . = {1, 2, . . . , n}. While studies on permanents – since their introduction in 1812 by Binet [3] and Cauchy [5] – have focused on matrices over fields and commutative rings, we generally only assume the entries are from some semiring, that is, multiplication need not commute and additive inverses need not exist. In ...
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ژورنال
عنوان ژورنال: Colloquium Mathematicum
سال: 1979
ISSN: 0010-1354,1730-6302
DOI: 10.4064/cm-41-1-141-145