Research

Preprints

• Torsors under Néron blowups, 11 pages, preprint Jan 2020, [arXiv].
• The motivic Satake equivalence (with Jakob Scholbach), 35 pages, preprint Sep 2019, [arXiv].
• Normality and Cohen-Macaulayness of Parahoric Local Models (with Thomas  J. Haines), 19 pages, preprint Mar 2019, [arXiv].
• Smoothness of Schubert varieties in twisted affine Grassmannians (with Thomas  J. Haines), 23 pages, preprint Sep 2018, [arXiv].
• The Test Function Conjecture for Local Models of Weil-restricted groups (with Thomas  J. Haines), 46 pages, preprint May 2018, [arXiv].
• The Test Function Conjecture for Parahoric Local Models (with Thomas  J. Haines), 68 pages, preprint Jan 2018, [arXiv].

Refereed Publications (published/accepted)

• The intersection motive of the moduli stack of shtukas (with Jakob Scholbach), 59 pages, preprint Jan 2019, [arXiv], to appear in Forum of Mathematics, Sigma.
• Spaces with G_m-action, hyperbolic localization and nearby cycles, J. Algebraic Geom. 28 (2019), 251-289. [Journal], [arXiv].
• On the Iwahori Weyl group, Bulletin de la SMF 144 (2016), 117- 124. [Journal], [arXiv].
  
• Affine Grassmannians and geometric Satake equivalences, Int. Math. Res. Not. 12 (2016), 3717-3767. [Journal], [arXiv]. Here is an [Erratum].
• (with Xinwen Zhu) Appendix to Xinwen Zhu: The geometric Satake correspondence for ramified groups, Annales scientifiques de l’ENS 48 (2015), 409-451. [Journal], [arXiv].
• A new approach to the geometric Satake equivalence, Documenta Mathematica 19 (2014), 209-246. [Journal], [arXiv].
• Schubert varieties in twisted affine flag varieties and local models, Journal of Algebra 375 (2013), 121-147. [Journal], [arXiv].

Proceedings