Results 121 to 130 of about 56,264 (249)

Path combinatorics and light leaves for quiver Hecke algebras [PDF]

open access: hybrid, 2021
C. Bowman   +3 more
openalex   +1 more source

Delta-groupoids in knot theory

open access: yes, 2009
A Delta-groupoid is an algebraic structure which axiomitizes the combinatorics of a truncated tetrahedron. It is shown that there are relations of Delta-groupoids to rings, group pairs, and (ideal) triangulations of three-manifolds.
Kashaev, R. M.
core  

Computational complexity in algebraic combinatorics

open access: yesCurrent Developments in Mathematics
Notes associated with the Current Developments in Mathematics 2023 ...
openaire   +2 more sources

Relative rank and regularization

open access: yesForum of Mathematics, Sigma
We introduce a new concept of rank – relative rank associated to a filtered collection of polynomials. When the filtration is trivial, our relative rank coincides with Schmidt rank (also called strength).
Amichai Lampert, Tamar Ziegler
doaj   +1 more source

Gotzmann Theorems for Exterior Algebras and Combinatorics

open access: bronze, 1997
Annetta Aramova   +2 more
openalex   +1 more source

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