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pro vyhledávání: '"Haines, Thomas"'
Autor:
Haines, Thomas J.
This article establishes alcove walk models for intersections of Schubert varieties and partially semi-infinite orbits in the affine Grassmannian of a split reductive group (we call such intersections parabolic Mirkovi\'c-Vilonen intersections). More
Externí odkaz:
http://arxiv.org/abs/2405.17174
Autor:
Haines, Thomas J.
This article proves, in the case of split groups over arbitrary fields, that all fibers of convolution morphisms attached to parahoric affine flag varieties are paved by products of affine lines and affine lines minus a point. This applies in particu
Externí odkaz:
http://arxiv.org/abs/2309.14218
We present a detailed privacy analysis of Samsung's Offline Finding (OF) protocol, which is part of Samsung's Find My Mobile (FMM) location tracking system for locating Samsung mobile devices, such as Samsung smartphones and Bluetooth trackers (Galax
Externí odkaz:
http://arxiv.org/abs/2210.14702
We construct local models of Shimura varieties and investigate their singularities, with special emphasis on wildly ramified cases. More precisely, with the exception of odd unitary groups in residue characteristic $2$ we construct local models, show
Externí odkaz:
http://arxiv.org/abs/2208.12072
Autor:
McMurtry, Eleanor, Boyen, Xavier, Culnane, Chris, Gjøsteen, Kristian, Haines, Thomas, Teague, Vanessa
We propose a protocol for verifiable remote voting with paper assurance. It is intended to augment existing postal voting procedures, allowing a ballot to be electronically constructed, printed on paper, then returned in the post. It allows each vote
Externí odkaz:
http://arxiv.org/abs/2111.04210
Autor:
Haines, Thomas J., Richarz, Timo
We study the singularities of integral models of Shimura varieties and moduli stacks of shtukas with parahoric level structure. More generally our results apply to the Pappas-Zhu and Levin mixed characteristic parahoric local models, and to their equ
Externí odkaz:
http://arxiv.org/abs/1903.10585
Autor:
Haines, Thomas
In this paper, we describe an optimised variant of Wikstr\"om's mixnet which shuffles vectors of ElGamal ciphertexts in parallel. We then show in detail that this construction is secure. Wikstr\"om's verifiable mixnet as we refer to it here was first
Externí odkaz:
http://arxiv.org/abs/1901.08371
Autor:
Haines, Thomas J., Richarz, Timo
Publikováno v:
Duke Math. J. 169, no. 17 (2020), 3223-3260
We give a complete list of smooth and rationally smooth normalized Schubert varieties in the twisted affine Grassmannian associated with a tamely ramified group and a special vertex of its Bruhat-Tits building. The particular case of the quasi-minusc
Externí odkaz:
http://arxiv.org/abs/1809.08464