Erez Lapid

activity

20142026

most citedWhittaker-Fourier coefficients of cusp forms on

S p_{n}

: reduction to a local statement

15 citations · 18 across the 5 of their papers we have counts for

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math.RT2026

A hereditary theorem for rigid and pseudorigid components of Lusztig's nilpotent varieties in type $A$

Erez Lapid, Mark Shusterman

For irreducible components $C_{σ}$ of Lusztig's nilpotent varieties of type $A$ with graded dimension $(1, 2, \dots, n, n - 1, \dots, 1)$ arising from permutations $σ \in S_{n}$ , we characteriz…

math.RT2026

A greedy open-orbit criterion for solvable algebraic group actions, with applications to Lusztig's nilpotent varieties

Erez Lapid

Let $G$ be a connected solvable algebraic group acting rationally on a finite-dimensional vector space $U$ . Using a $G$ -stable complete flag, we formulate a successive-quotient pro…

A hereditary theorem for rigid and pseudorigid components of Lusztig's nilpotent varieties in type A

A greedy open-orbit criterion for solvable algebraic group actions, with applications to Lusztig's nilpotent varieties

A hereditary theorem for rigid and pseudorigid components of Lusztig's nilpotent varieties in type $A$