3 citations · 6 across the 8 of their papers we have counts for
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math.CO2026
Canonical Lattices of Integer Relations Associated to Rational Fans: Wall Generation and a Two-Step Support Filtration
Rizwan Jahangir, Daisuke Ishii
We study the lattice of integer relations among the primitive ray generators of a rational fan , from an intrinsic, co…
math.CO2023★ 3 cited
Shellable simplicial complex and switching rook polynomial of frame polyominoes
Rizwan Jahangir, Francesco Navarra
Let be a frame polyomino, a new kind of non-simple polyomino. In this paper we study the -polynomial of in terms of the switching rook polynomial…
math.CO2023
On Cohen-Macaulay posets of dimension two and permutation graphs
Rizwan Jahangir, Dharm Veer
We characterize Cohen-Macaulay posets of dimension two; they are precisely the shellable and strongly connected posets of dimension two. We also give a combinatorial description of…