Prof. Dan Ciubotaru
PhD Cornell (2004)
Status
Academic Faculty
Professor of Mathematics
Diana Brown Fellow and Tutor in Pure Maths, Somerville College
Research groups
Address
Mathematical Institute
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG
Highlighted publications
On the generalized Ramanujan and Arthur conjectures over function fields
Ciubotaru, D Harris, M Annals of Mathematics volume 204 issue 2 545-601 (01 Sep 2026) doi:10.4007/annals.2026.204.2.3 Wavefront sets of unipotent representations of reductive p-adic groups II
Ciubotaru, D Mason-Brown, L Okada, E Journal Fur Die Reine Und Angewandte Mathematik volume 2025 issue 823 191-253 (01 Jun 2025) doi:10.1515/crelle-2025-0022 Local character expansions and asymptotic cones over finite fields
Ciubotaru, D Okada, E Proceedings of the London Mathematical Society volume 130 issue 5 (01 May 2025) doi:10.1112/plms.70046 Types and unitary representations of reductive p-adic groups
Ciubotaru, D Inventiones Mathematicae volume 213 issue 1 237-269 (01 Feb 2018) doi:10.1007/s00222-018-0790-4 Dirac cohomology for graded affine Hecke algebras
Barbasch, D Ciubotaru, D Trapa, P Acta Mathematica volume 209 issue 2 197-227 (12 Dec 2012) doi:10.1007/s11511-012-0085-3 On characters and formal degrees of discrete series of affine Hecke algebras of classical types
Ciubotaru, D Kato (Shiota), M Kato, S Inventiones Mathematicae volume 187 issue 3 589-635 (16 Mar 2012) doi:10.1007/s00222-011-0338-3 Whittaker unitary dual of affine graded Hecke algebras of type E
Barbasch, D Ciubotaru, D Compositio Mathematica volume 145 issue 6 1563-1616 (03 Nov 2009) doi:10.1112/s0010437x09004230 Prizes, awards, and scholarships
MPLS Teaching Award (2017)
Research interests
Representation theory of reductive Lie groups: the unitary dual, local Langlands correspondence, affine Hecke algebras, Coxeter groups, Dirac operators in representation theory.
Recent publications
Jantzen filtrations for graded affine Hecke algebras
Ciubotaru, D (13 Sep 2026) Symplectic Dirac operators on homogeneous spaces
Ciubotaru, D Liu, G Mehdi, S Prudhon, N (09 Sep 2026) Generic spherical unitary dual for Chevalley groups over local fields
Ciubotaru, D (06 Aug 2026) A nonabelian Fourier transform for tempered unipotent representations, II
Aubert, A Ciubotaru, D Romano, B (12 Jun 2026) Endoscopic transfer and the wavefront upper bound conjecture
Atobe, H Ciubotaru, D (04 Mar 2026) doi:10.48550/arxiv.2602.22504 Unitary representations attached to parabolic subgroups: the case of abelian unipotent radical
Ciubotaru, D (13 Oct 2025) The wavefront set: bounds for the Langlands parameter
Ciubotaru, D Kim, J Mathematische Annalen volume 393 issue 2 1827-1861 (09 Oct 2025) doi:10.1007/s00208-025-03278-4 Teaching
Representations of semisimple Lie algebras (C2.3), HT 2026
Further details
EPSRC "New Horizons" EP/V046713/1, 1/2021-12/2023 (PI)
EPSRC grant EP/N033922/1, 9/2016-8/2020 (PI)
Member of the editorial boards of Documenta Mathematica (2015-2024) and Quarterly Journal of Mathematics (2017-).