Counting Restricted One-to-One Functions Under a More General Condition

Mary Joy R. Latayada, Roberto R. Corcino

Abstract


In this paper, we obtain some explicit and recurrence formulas in counting the number restricted one-to-one functions $f|_S: N_m\longrightarrow N$, $S\subseteq N_m$ under certain conditions.

Keywords


counting functions, recurrence relation, restricted one-to-one function, stirling numbers

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Copyright (c) 2015 Mary Joy R. Latayada, Roberto R. Corcino

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