On orthogonally additive injections and surjections
نویسندگان
چکیده
منابع مشابه
Injections, Surjections and More
where is the natural logarithmic base [4]. In counting all injections, we treat extensions as distinct; for example, the function : {1 2}→ {1 2} with () = is not the same as the function : {1 2} → {1 2 3} with () = , nor is it the same as the function : {1 2 3}→ {1 2 3} with () = . Let denote the set of all surjections {1 } → {1 } where ≥ . ...
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ژورنال
عنوان ژورنال: Commentationes Mathematicae
سال: 2016
ISSN: 2080-1211
DOI: 10.14708/cm.v55i2.1109