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math.CO2018
Counting Words Avoiding a Short Increasing Pattern and the Pattern 1k...2
Yonah Biers-Ariel
We find finite-state recurrences to enumerate the words on the alphabet which avoid the patterns 123 and , and, separately, the words which avoid the pattern…
math.CO2018
On The Joint Normality of Certain Statistics on Ordered Trees
Yonah Biers-Ariel
We develop algorithms, implemented in Maple, that study the number of vertices with a particular number of children in a random ordered tree where all vertices must have a number o…