1 citations · 1 across the 5 of their papers we have counts for
5 papers
Positive -expansions for KPKP graphs, twinned lollipops, and kayak paddles
Davion Q. B. Tang, David G. L. Wang
We derive explicit positive -expansions for the chromatic symmetric functions of several graph families. First, we obtain a uniform formula for KPKP graphs that specializes to…
Chromatic symmetric functions of conjoined graphs
E. Y. J. Qi, D. Q. B. Tang, D. G. L. Wang
We introduce path-conjoined graphs defined for two rooted graphs by joining their roots with a path, and investigate the chromatic symmetric functions of its two generalizations: s…
The spiders are -positive
Davion Q. B. Tang, David G. L. Wang, Monica M. Y. Wang
Using the composition method, we establish the -positivity of spiders of the form , as conjectured by Aliniaeifard, van Willigenburg and Wang. Following a di…
A composition method for neat formulas of chromatic symmetric functions
David G. L. Wang, James Z. F. Zhou
We develop a composition method to unearth positive -expansions of chromatic symmetric functions , where the subscript stands for compositions rather than integer par…
Some Families of Super Congruences Involving Alternating Multiple Harmonic Sums
Kevin Chen, Rachael Hong, Jerry Qu +2
Let be a prime. In this short note we study some families of super congruences involving the following alternating sums \begin{equation*} \sum_{\substack{j_1+j_2+\cdots+j_n=2 p…