activity
20072026
most citedCharacters of Springer representations on elliptic conjugacy classes

25 citations · 136 across the 56 of their papers we have counts for

collaborators

56 papers

math.RT2026

Symplectic Dirac operators on homogeneous spaces

Dan Ciubotaru, Gang Liu, Salah Mehdi +1

We define symplectic Dirac operators on homogeneous spaces and study their representation-theoretic role. For an invariant polarization, the symplectic Dirac operator decomposes in…

math.RT2026

Jantzen filtrations for graded affine Hecke algebras

Dan Ciubotaru

We prove the Jantzen conjecture for standard modules of graded affine Hecke algebras with equal parameters, real central character in the dominant deformation direction. The Jantze…

math.RT2026

Generic spherical unitary dual for Chevalley groups over local fields

Dan Ciubotaru

We prove that a generic spherical parameter for the graded affine Hecke algebra with equal parameters is unitary if and only if its normalized intertwining forms are positive on th…

math.RT2026

A nonabelian Fourier transform for tempered unipotent representations, II

Anne-Marie Aubert, Dan Ciubotaru, Beth Romano

We extend the construction of the nonabelian Fourier transform proposed in our previous paper from the space of unipotent elliptic characters to the space of unipotent compact char…

math.RT2026

Endoscopic transfer and the wavefront upper bound conjecture

Hiraku Atobe, Dan Ciubotaru

We verify the local analogue of Jiang's conjecture for the upper bound of the geometric wavefront sets of Arthur type representations of split classical -adic groups with $p\gg…

math.RT2025

Unitary representations attached to parabolic subgroups: the case of abelian unipotent radical

Dan Ciubotaru

We classify the unitary representations with integral infinitesimal character in Lusztig's category of unipotent representations in the case when the geometric parameter space come…