3 papers
math.RT2026
Branching rules for winding subalgebras of the affine Kac--Moody algebras and
Khanh Nguyen Duc
We study branching problems for affine Kac--Moody algebras. Unlike the finite-dimensional case, an affine Kac--Moody algebra may contain proper subalgebras isomorphic to itself, su…
math.RT2026
Steenrod Lengths and a Problem of Vakil
Khanh Nguyen Duc
We give an explicit combinatorial description of the function governing the Steenrod length of real projective spaces . This function arises in stable homotop…
math.RT2025
Branching rule on winding subalgebras of affine Kac-Moody algebras
Khanh Nguyen Duc
In this paper, by using the Lakshmibai-Seshadri paths, we give the branching rule for representations of affine Kac-Moody algebras to their winding subalgebras. As a corollary, we…