Results 191 to 200 of about 1,406 (208)

Spherical fuzzy hypergraph in decision making. [PDF]

open access: yesSci Rep
Pramanik T   +5 more
europepmc   +1 more source

Chromatic quasisymmetric functions

open access: yesAdvances in Mathematics, 2016
We introduce a quasisymmetric refinement of Stanley's chromatic symmetric function. We derive refinements of both Gasharov's Schur-basis expansion of the chromatic symmetric function and Chow's expansion in Gessel's basis of fundamental quasisymmetric ...
John Shareshian, Michelle L Wachs
exaly   +2 more sources

α-Chromatic Symmetric Functions

International Mathematics Research Notices
Abstract In this paper, we introduce the $\alpha $-chromatic symmetric functions  $\chi ^{(\alpha )}_\pi [X;q]$, extending Shareshian and Wachs’ chromatic symmetric functions with an additional real parameter $\alpha $. We present positive combinatorial formulas with explicit interpretations.
Haglund, Jim, Oh, Jaeseong, Yoo, Meesue
openaire   +1 more source

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