2 citations · 12 across the 34 of their papers we have counts for
4 papers · 1 filter
Squarefree P-modules and the cd-index
Satoshi Murai, Kohji Yanagawa
In this paper, we introduce a new algebraic concept, which we call squarefree P-modules. This concept is inspired from Karu's proof of the non-negativity of the cd-indices of Goren…
Addendum to "Frobenius and Cartier algebras of Stanley-Reisner rings" [J. Algebra 358 (2012) 162-177]
Josep Alvarez Montaner, Kohji Yanagawa
We give a purely combinatorial characterization of complete Stanley-Reisner rings having principally generated (equivalently, finitely generated) Cartier algebras.
On CW complexes supporting Eliahou-Kervaire type resolutions of Borel fixed ideals
Ryota Okazaki, Kohji Yanagawa
We prove that the Eliahou-Kervaire resolution of a Cohen-Macaulay stable monomial is supported by a regular CW complex whose underlying space is a closed ball. We also show that th…
Dualizing complexes of seminormal affine semigroup rings and toric face rings
Kohji Yanagawa
We characterize the seminormality of an affine semigroup ring in terms of the dualizing complex, and the normality of a Cohen-Macaulay semigroup ring by the "shape" of the canonica…