RIT on Adic Geometryhttp://www-math.umd.edu/research/seminars.html Perfectoid rings and Almost Mathematics http://www-math.umd.edu/research/seminars.html Fri, 11 Jul 2025 14:00:00 EDT Where: Kirwan Hall 1311
Speaker: Anurag Kumar and Ziyi Huang (UMD) -
Abstract: Anurag Kumar will finish his discussion of perfectoid rings and Ziyi Huang will begin a discussion of Almost Mathematics.
]]> Almost commutative algebra and part of tilting equivalence http://www-math.umd.edu/research/seminars.html Fri, 18 Jul 2025 15:00:00 EDT Where: Kirwan Hall 3206
Speaker: Ziyi Huang (UMD) -
Abstract: We define basic functors and study adjunctions and base change. Then we extend some classical notions such as flat, projective, unramified, étale, to almost modules. This leads to a proof of half of tilting equivalence. The rest will be treated after developing perfectoid algebras in future talks.
]]> Almost commutative algebra and part of tilting equivalence (continued) http://www-math.umd.edu/research/seminars.html Fri, 25 Jul 2025 14:00:00 EDT Where: Kirwan Hall 1311
Speaker: Ziyi Huang (UMD) -
Abstract: We continue where we left off.
]]> Perfectoid spaces and tilting equivalence http://www-math.umd.edu/research/seminars.html Fri, 05 Sep 2025 14:00:00 EDT Where: Kirwan Hall 3206
Speaker: Ziyi Huang (UMD) -
Abstract: We'll finish the proof of tilting equivalence.
]]> Direct Summand Conjecture http://www-math.umd.edu/research/seminars.html Fri, 12 Sep 2025 14:10:00 EDT Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) -

]]> Introduction to the Fargues-Scholze geometrization theorem http://www-math.umd.edu/research/seminars.html Fri, 19 Sep 2025 14:10:00 EDT Where: Kirwan Hall 3206
Speaker: Tom Haines (UMD) - https://math.umd.edu/~tjh/

]]> Introduction to the Fargues--Scholze geometrization theorem 2 http://www-math.umd.edu/research/seminars.html Fri, 26 Sep 2025 14:10:00 EDT Where: Kirwan Hall 3206
Speaker: Tom Haines (University of Maryland) -
]]> Fargues--Fontaine Curve I. Analytic FF curve http://www-math.umd.edu/research/seminars.html Fri, 03 Oct 2025 14:10:00 EDT Where: Kirwan Hall 1313
Speaker: Bogdan Zavyalov () -

]]> Fargues—Fontaine curve II: algebraic FF curve http://www-math.umd.edu/research/seminars.html Fri, 10 Oct 2025 14:10:00 EDT Where: Kirwan Hall 1313
Speaker: Dori Bejleri (UMD) -

]]> Fargues—Fontaine curve II: algebraic FF curve (continued) http://www-math.umd.edu/research/seminars.html Fri, 17 Oct 2025 14:10:00 EDT Where: Kirwan Hall 1313
Speaker: Dori Bejleri (UMD) -
]]> Pro-étale topology, v-topology, and diamonds http://www-math.umd.edu/research/seminars.html Fri, 24 Oct 2025 14:10:00 EDT Where: Kirwan Hall 1313
Speaker: Ziyi Huang (UMD) -

]]> More on diamonds, and degree 1 Cartier divisors on the Fargues-Fontaine curve http://www-math.umd.edu/research/seminars.html Fri, 31 Oct 2025 14:10:00 EDT Where: Kirwan Hall 3206
Speaker: Ziyi Huang (UMD) -

]]> Lubin-Tate Theory and O(1) http://www-math.umd.edu/research/seminars.html Fri, 14 Nov 2025 14:10:00 EST Where: Kirwan Hall 3206
Speaker: Anurag Kumar (UMD) -

]]> Local class field theory, d’après Fargues http://www-math.umd.edu/research/seminars.html Fri, 21 Nov 2025 14:10:00 EST Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) -

]]> Local class field theory, d’après Fargues (continued) http://www-math.umd.edu/research/seminars.html Fri, 05 Dec 2025 14:10:00 EST Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) -

]]> Classification of vector bundles on the Fargues--Fontaine curve http://www-math.umd.edu/research/seminars.html Fri, 12 Dec 2025 14:10:00 EST Where: Kirwan Hall 3206
Speaker: Dori Bejleri (UMD) - https://math.umd.edu/~dbejleri/

]]> Weakly admissible implies admissible http://www-math.umd.edu/research/seminars.html Fri, 06 Feb 2026 14:30:00 EST Where: Kirwan Hall 1311
Speaker: Xintong Zhao
]]> Weakly admissible implies admissible, II http://www-math.umd.edu/research/seminars.html Fri, 13 Feb 2026 14:30:00 EST Where: Kirwan Hall 3206
Speaker: Xintong Zhao (UMD) -

]]> Projectivized Banach--Colmez spaces http://www-math.umd.edu/research/seminars.html Fri, 20 Feb 2026 14:30:00 EST Where: Kirwan Hall 3206
Speaker: Thomas Haines (UMD) - https://math.umd.edu/~tjh/

]]> Upper semi-continuity of slopes http://www-math.umd.edu/research/seminars.html Mon, 02 Mar 2026 14:00:00 EST Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) - https://bogdanzavyalov.com/

]]> Isocrystals with G-structures http://www-math.umd.edu/research/seminars.html Fri, 13 Mar 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Thomas Haines (UMD) - https://math.umd.edu/~tjh/

]]> Bun_G and its underlying topological space http://www-math.umd.edu/research/seminars.html Thu, 26 Mar 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) -
]]> Bun_G and its underlying topological space http://www-math.umd.edu/research/seminars.html Fri, 27 Mar 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) - https://bogdanzavyalov.com

]]> Beauville--Laszlo uniformization http://www-math.umd.edu/research/seminars.html Fri, 03 Apr 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Qihang Li (UMD) -

]]> Upper semi-continuity of the Newton map and local constancy of the Kottwitz map http://www-math.umd.edu/research/seminars.html Fri, 10 Apr 2026 14:30:00 EDT Where: Kirwan Hall 1308
Speaker: Thomas Haines (UMD) - https://math.umd.edu/~tjh/

]]> The semi-stable locus of Bun_G http://www-math.umd.edu/research/seminars.html Fri, 17 Apr 2026 14:27:00 EDT Where: Kirwan Hall 3206
Speaker: Xintong Zhao (UMD) -

]]> The non-semistable locus of Bun_G http://www-math.umd.edu/research/seminars.html Fri, 24 Apr 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Dori Bejleri (UMD) - https://math.umd.edu/~dbejleri/

]]> Etale Cohomology of Diamonds http://www-math.umd.edu/research/seminars.html Fri, 01 May 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Bogdan Zavyalov (UMD) - https://bogdanzavyalov.com/

]]> 6 functors for D_et http://www-math.umd.edu/research/seminars.html Fri, 08 May 2026 14:30:00 EDT Where: Kirwan Hall 3206
Speaker: Ziyi Huang (UMD) -

]]> D_et(Bun^b_G; Lambda) http://www-math.umd.edu/research/seminars.html Fri, 15 May 2026 14:23:00 EDT Where: Kirwan Hall 3206
Speaker: Qihang Li (UMD) -

]]>