Browsing Matematik Bölümü / Department of Mathematics by Title
Now showing items 134-135 of 135
(University of Calgary, 2019-12-25)In this paper, we present a number of combinatorial matrices that are generalizations or variants of the super Catalan matrix and the reciprocal Pascal matrix. We present explicit formulæ for LU-decompositions of all the ...
(Bulgarian Acad Science, 2017)In this paper, we make a contribution to the enumeration of permutations avoiding a quadruples of 4-letter patterns by establishing a Wilf class composed of 19 symmetry classes.