2 papers
math.AC2004
Plethystic algebra
James Borger, Ben Wieland
The notion of a Z-algebra has a non-linear analogue, whose purpose it is to control operations on commutative rings rather than linear operations on abelian groups. These plethorie…
math.CO2000
A Large Dihedral Symmetry of the Set of Alternating Sign Matrices
Benjamin Wieland
We prove a conjecture of Cohn and Propp, which refines a conjecture of Bosley and Fidkowski about the symmetry of the set of alternating sign matrices (ASMs). We examine data arisi…