7 citations · 14 across the 23 of their papers we have counts for
Showing 2006 · math.COShow all
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math.CO2006
Extreme Palindromes
Kathy Q. Ji, Herbert S. Wilf
A recursively palindromic (RP) word is one that is a palindrome and whose left half-word and right half-word are each RP. Thus ABACABA is, and MADAM is not, an RP word. We count RP…
math.CO2006
BG-ranks and 2-cores
William Y. C. Chen, Kathy Q. Ji, Herbert S. Wilf
We find the number of partitions of whose BG-rank is , in terms of , the number of pairs of partitions whose total number of cells is , giving both bijective and g…
math.CO2006★ 1 cited
Jacobi's Identity and Synchronized Partitions
William Y. C. Chen, Kathy Q. Ji
We obtain a finite form of Jacobi's identity and present a combinatorial proof based on the structure of synchronized partitions.