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math.CO2023
Sketches, moves and partitions: counting regions of deformations of reflection arrangements
Priyavrat Deshpande, Krishna Menon
The collection of reflecting hyperplanes of a finite Coxeter group is called a reflection arrangement and it appears in many subareas of combinatorics and representation theory. We…
math.CO2023
Subsequence frequency in binary words
Krishna Menon, Anurag Singh
The numbers we study in this paper are of the form , which is the number of binary words of length that contain the word (as a subsequence) exactly times.…