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Showing 2001 · math.COShow all
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math.CO2001
Words restricted by 3-letter generalized multipermutation patterns
Alexander Burstein, Toufik Mansour
We find exact formulas and/or generating functions for the number of words avoiding 3-letter generalized multipermutation patterns and find which of them are equally avoided.
math.CO2001
Words restricted by patterns with at most 2 distinct letters
Alexander Burstein, Toufik Mansour
We find generating functions for the number of words avoiding certain patterns or sets of patterns on at most 2 distinct letters and determine which of them are equally avoided. We…