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Counting occurrences of some subword patterns

A. Burstein·T. Mansour
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Abstract

We find generating functions the number of strings (words) containing a specified number of occurrences of certain types of order-isomorphic classes of substrings called subword patterns. In particular, we find generating functions for the number of strings containing a specified number of occurrences of a given 3-letter subword pattern.

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A. Burstein, T. Mansour. 2003-01-30. Counting occurrences of some subword patterns. https://arxiv.org/abs/math/0204320

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