13 citations · 23 across the 22 of their papers we have counts for
3 papers · 1 filter
Mahonian STAT on rearrangement class of words
Shishuo Fu, Ting Hua, Vincent Vajnovszki
In 2000, Babson and Steingrímsson generalized the notion of permutation patterns to the so-called vincular patterns, and they showed that many Mahonian statistics can be expressed…
On shortening u-cycles and u-words for permutations
Sergey Kitaev, Vladimir N. Potapov, Vincent Vajnovszki
This paper initiates the study of shortening universal cycles (u-cycles) and universal words (u-words) for permutations either by using incomparable elements, or by using non-deter…
More restricted growth functions: Gray codes and exhaustive generations
Ahmad Sabri, Vincent Vajnovszki
A Gray code for a combinatorial class is a method for listing the objects in the class so that successive objects differ in some prespecified, small way, typically expressed as a b…