3 papers
math.AG2025
On a conjecture of Hosono-Lee-Lian-Yau
Andrew Harder, Sukjoo Lee
We extend the mirror construction of singular Calabi-Yau double covers, introduced by Hosono, Lee, Lian, and Yau, to a broader class of singular Calabi-Yau -Galoi…
math.CO2025
The diagonal and Hadamard grade of hypergeometric functions
Andrew Harder, Joe Kramer-Miller
Diagonals of rational functions are an important class of functions arising in number theory, algebraic geometry, combinatorics, and physics. In this paper we study the diagonal gr…
math.AG2025
Irregular Hodge numbers of stacky Clarke mirror pairs
Andrew Harder, Sukjoo Lee
We prove a duality between the graded pieces of the irregular Hodge filtration on the twisted cohomology for a large class of Clarke mirror pairs of stacky Landau-Ginzburg models.…