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Maximal 0-1 fillings of moon polyominoes with restricted chain-lengths and rc-graphs
multitriangulations rc-graphs Edelman-Greene insertion Schubert polynomials
2010/12/9
We show that maximal 0-1-fillings of moon polynomials,with restricted chain lengths, can be identified with certain rc-graphs, also known as pipe dreams. In particular, this exhibits
a connection bet...
The Basis Number of the Semi-Composition Product of Some Graphs I
Basis number cycle space fold semi-composition product
2010/2/26
The basis number of a graph G is defined to be the least integer d such that there is a basis \mathcal{B} of the cycle space of G such that each edge of G is contained in at most d members of \mathcal...
In this paper we examine some properties of suborbital graphs for the normalizer {\cal N} of G0(N) in PSL(2,R) and show that, if {\cal N}/G0(N) and the set of orbit representatives are denoted by B an...