1 problem

0 votes0 replies0 views
Defant and Zheng's conjecture on the smallest fertility number congruent to 3 modulo 4
For a permutation under West's stack-sorting map, its fertility number is the number of preimages under that map. Defant and Zheng's conjecture. The smallest fertility number congr…
Conjectureopenfertility-numbers permutations stack-sortingarXiv posted 2 days ago

Defant and Zheng's conjecture on the smallest fertility number congruent to 3 modulo 4