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X-WR-CALDESC:Events for CRC 326 - GAUS
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TZID:Europe/Berlin
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221104T133000
DTEND;TZID=Europe/Berlin:20221104T150000
DTSTAMP:20260409T131133
CREATED:20221025T120821Z
LAST-MODIFIED:20221027T203836Z
UID:3926-1667568600-1667574000@crc326gaus.de
SUMMARY:Non-abelian Chabauty for the thrice-punctured line and the Selmer section conjecture
DESCRIPTION:Martin Lüdtke (Reichsuniversität Groningen) \nFor a smooth projective hyperbolic curve over a number field K the set of rational points X(K) is finite by Faltings’ Theorem. Grothendieck’s section conjecture predicts that this set can be described via Galois sections of the étale fundamental group of X. On the other hand\, the non-abelian Chabauty method produces p-adic analytic functions which conjecturally cut out X(K) as a subset of X(Qp). We relate the two conjectures and discuss the example of the thrice-punctured line\, where non-abelian Chabauty is used to prove a local-to-glocal principle for the section conjecture. \nlivestream:\nhttp://129.206.106.240/UzPL29kB/mathematikon-seminarraum.html
URL:https://crc326gaus.de/event/non-abelian-chabauty-for-the-thrice-punctured-line-and-the-selmer-section-conjecture/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Marius Leonhardt":MAILTO:mleonhardt@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221103T151500
DTEND;TZID=Europe/Berlin:20221103T174500
DTSTAMP:20260409T131133
CREATED:20221004T082315Z
LAST-MODIFIED:20221031T132314Z
UID:3694-1667488500-1667497500@crc326gaus.de
SUMMARY:Non-hypergeometric E-functions
DESCRIPTION:15:15-16:15: Gabriele Bogo (TU Darmstadt): E-functions and G-functions \n16:45-17:45: Christina Röhrig (TU Darmstadt): G-functions and geometry
URL:https://crc326gaus.de/event/e-functions-and-g-functions/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221103T140000
DTEND;TZID=Europe/Berlin:20221103T160000
DTSTAMP:20260409T131133
CREATED:20221102T095632Z
LAST-MODIFIED:20221102T095632Z
UID:4138-1667484000-1667491200@crc326gaus.de
SUMMARY:Motivation for q-deformation
DESCRIPTION:
URL:https://crc326gaus.de/event/motivation-for-q-deformation/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221101T160000
DTEND;TZID=Europe/Berlin:20221101T170000
DTSTAMP:20260409T131133
CREATED:20221108T125412Z
LAST-MODIFIED:20221108T125412Z
UID:4190-1667318400-1667322000@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms: The invariants of the Weil representation of SL_2(Z)
DESCRIPTION:The transformation behaviour of the vector valued theta function of a positive definite even lattice under the metaplectic group Mp_2(Z) is described by the Weil representation. This representation plays an important role in the theory of automorphic forms. We show that its invariants are induced from 5 fundamental invariants. \nYou can join the Zoom meeting at https://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits).
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-the-invariants-of-the-weil-representation-of-sl_2z/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221101T160000
DTEND;TZID=Europe/Berlin:20221101T170000
DTSTAMP:20260409T131133
CREATED:20220629T075903Z
LAST-MODIFIED:20221023T100731Z
UID:3217-1667318400-1667322000@crc326gaus.de
SUMMARY:"Classifying" fake projective planes
DESCRIPTION:Matthew Stover (Temple University) \nAbstract: \n A fake projective plane is a smooth complex projective surface with the same \ncomplex cohomology as the projective plane. I will describe several more refined \n"classifications"\, starting with the very vague "they are ball quotients"\, describing \na shorter proof (with shortcut via work of Esnault-Groechenig) of Klingler's theorem \nthat the associated lattice in PU(2\,1) is arithmetic\, and ending with my recent proof \nthat there are exactly 46 up to the action of Aut(C) (equivalently\, isomorphism of \nétale fundamental group). \nOberseminar Algebra und Geometrie \nZoom\nmeeting-ID: 635 5834 1373\npassword: the number of fake projective planes up to biholomorphism (read wikipedia carefully)
URL:https://crc326gaus.de/event/tba-5/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221101T140000
DTEND;TZID=Europe/Berlin:20221101T153000
DTSTAMP:20260409T131133
CREATED:20220929T113739Z
LAST-MODIFIED:20221027T210341Z
UID:3626-1667311200-1667316600@crc326gaus.de
SUMMARY:Buildings
DESCRIPTION:Pedro Souza (Goethe University): Thick buildings – axioms and first properties
URL:https://crc326gaus.de/event/buildings-axioms-and-first-consequences/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 110 und Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221028T133000
DTEND;TZID=Europe/Berlin:20221028T150000
DTSTAMP:20260409T131133
CREATED:20221021T125518Z
LAST-MODIFIED:20221027T201338Z
UID:3884-1666963800-1666969200@crc326gaus.de
SUMMARY:On a Conjecture of Colliot-Thélène
DESCRIPTION:Florian Pop (University of Pensylvania) \nlive stream:\nhttp://129.206.106.240/UzPL29kB/mathematikon-seminarraum.html
URL:https://crc326gaus.de/event/on-a-conjecture-of-colliot-thelene/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221026T160000
DTEND;TZID=Europe/Berlin:20221026T170000
DTSTAMP:20260409T131133
CREATED:20220629T080321Z
LAST-MODIFIED:20221021T103226Z
UID:3220-1666800000-1666803600@crc326gaus.de
SUMMARY:The Gauss problem for central leaves
DESCRIPTION:Valentijn Karemaker (Universiteit Utrecht) \nAbstract: \nFor a family of finite sets whose cardinalities are naturally called class numbers\, \nthe Gauss problem asks to determine the subfamily in which every member has class number one. \nWe study the Siegel moduli space of abelian varieties in characteristic p and solve the Gauss problem \nfor the family of central leaves\, which are the loci consisting of points whose associated p-divisible groups \nare isomorphic. Our solution involves mass formulae\, computations of automorphism groups\, \nand a careful analysis of Ekedahl-Oort strata in genus 4. This geometric Gauss problem is \nclosely related to an arithmetic Gauss problem for genera of positive-definite quaternion Hermitian lattices\, \nwhich we also solve.\nOberseminar Algebra und Geometrie (Frankfurt)
URL:https://crc326gaus.de/event/tba-9/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20221026
DTEND;VALUE=DATE:20221029
DTSTAMP:20260409T131133
CREATED:20220727T083104Z
LAST-MODIFIED:20221027T202136Z
UID:3394-1666742400-1667001599@crc326gaus.de
SUMMARY:Early Number Theory Researchers
DESCRIPTION:This workshop is meant as an opportunity for community building and \nfostering collaborations between early career researchers in the field \nof number theory. Participants are strongly encouraged to give a talk.\nYou can find more information and apply for the workshop\, see webpage.
URL:https://crc326gaus.de/event/early-number-theory-researchers/
LOCATION:Darmstadt
CATEGORIES:GAUS-Workshop
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221025T140000
DTEND;TZID=Europe/Berlin:20221025T153000
DTSTAMP:20260409T131133
CREATED:20221011T130728Z
LAST-MODIFIED:20221116T134501Z
UID:3754-1666706400-1666711800@crc326gaus.de
SUMMARY:Moduli of Langlands parameters: The space of tame parameters
DESCRIPTION:Sriram Chinthalagiri Venkata (Heidelberg University) \nExplain how one can view L-parameters as cocycles\, define the moduli functor Z1(WF0\, Gˆ)\, and show it is representable by a scheme [DHKM20\, p5]. Specializing to the tame case\, construct the scheme Z1(WF0/PF\, Gˆ) [DHKM20\, §2.1] and study its geometry [DHKM20\, §2.2]. \nZoom: \nMeeting-ID: 61220727363 \nPassword: largest six digit prime
URL:https://crc326gaus.de/event/moduli-of-langlands-parameters-the-space-of-tame-parameters/
LOCATION:Zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221025T140000
DTEND;TZID=Europe/Berlin:20221025T153000
DTSTAMP:20260409T131133
CREATED:20220929T095216Z
LAST-MODIFIED:20221115T094027Z
UID:3624-1666706400-1666711800@crc326gaus.de
SUMMARY:Buildings
DESCRIPTION:Arne Kuhrs (Goethe University): Coxeter groups and complexes in general
URL:https://crc326gaus.de/event/chamber-complexes-convexity-semigroup-structure/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 110 und Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221021T133000
DTEND;TZID=Europe/Berlin:20221021T150000
DTSTAMP:20260409T131133
CREATED:20221011T122422Z
LAST-MODIFIED:20221011T122452Z
UID:3748-1666359000-1666364400@crc326gaus.de
SUMMARY:Liquid Tensor Experiment
DESCRIPTION:Dr. Johan Commelin (Universität Freiburg)
URL:https://crc326gaus.de/event/liquid-tensor-experiment/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221020T160000
DTEND;TZID=Europe/Berlin:20221020T173000
DTSTAMP:20260409T131133
CREATED:20221010T121911Z
LAST-MODIFIED:20221012T151328Z
UID:3745-1666281600-1666287000@crc326gaus.de
SUMMARY:Semi-modules and crystal bases via affine Deligne-Lusztig varieties
DESCRIPTION:Meeting-ID: 635 7328 0984Password: 100003
URL:https://crc326gaus.de/event/semi-modules-and-crystal-bases-via-affine-deligne-lusztig-varieties/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221020T150000
DTEND;TZID=Europe/Berlin:20221020T160000
DTSTAMP:20260409T131133
CREATED:20221003T125115Z
LAST-MODIFIED:20221004T080517Z
UID:3688-1666278000-1666281600@crc326gaus.de
SUMMARY:Characterizing every finitely generated field by a field axiom
DESCRIPTION:Oberseminar Algebra und Geometrie \nFlorian Pop (University of Pennsylvania\, Philadelphia) \nAbstract:\nRecall that the Hilbert Problem 10 (HP10) has a negative answer (by work of Davis\, Putman\, Julia Robinson\, culminating with Matijasevich). That implies at least intuitively that the arithmetic of global fields is “very complicated.” An intriguing question arising from the negative solution to HP10 is whether the arithmetic is so complicated that the isomorphism type of every global field can be “encoded” in a single field axiom\, i.e.\, whether for every global field $K$ there is a field axiom\, say $\varphi_K$\, such that for all global fields $L$ one has $L\cong K$\, provided $\varphi_K$ is true in $L$. It was shown by Rumely in 1980 that such a field axiom $\varphi_K$ does exist indeed for every global field $K$. In my talk I will explain all the terms\, and show that the above fact is true for  all finitely generated fields. This is joint work with Philip Dittmann.
URL:https://crc326gaus.de/event/tba-19/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221018T140000
DTEND;TZID=Europe/Berlin:20221018T153000
DTSTAMP:20260409T131133
CREATED:20221011T130400Z
LAST-MODIFIED:20221011T130400Z
UID:3752-1666101600-1666107000@crc326gaus.de
SUMMARY:Moduli of Langlands parameters: Moduli of Langlands parameters
DESCRIPTION:Recall the definition of the Weil group of a non-archimedean local field. Give some recollections about reductive groups\, in order to define the L-group and\nL-homomorphisms. Give the different possible definitions [DHKM20\, (1)-(4) on pages 2 and 4] of L-parameters. Explain why these agree for ℓ-adic coefficients\, using Grothendieck’s ℓ-adic monodromy theorem\, and why they differ for more general coefficients \nZoom: \nMeeting-ID: 61220727363 \nPassword: largest six digit prime
URL:https://crc326gaus.de/event/moduli-of-langlands-parameters-moduli-of-langlands-parameters/
LOCATION:Zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221018T140000
DTEND;TZID=Europe/Berlin:20221018T153000
DTSTAMP:20260409T131133
CREATED:20220929T094955Z
LAST-MODIFIED:20221115T093316Z
UID:3618-1666101600-1666107000@crc326gaus.de
SUMMARY:Buildings
DESCRIPTION:Kevin Kühn (Goethe University): Finite reflection groups and their associated complexes
URL:https://crc326gaus.de/event/coxeter-groups-and-complexes/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 110 und Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221018T111500
DTEND;TZID=Europe/Berlin:20221018T124500
DTSTAMP:20260409T131133
CREATED:20221017T112419Z
LAST-MODIFIED:20221017T122436Z
UID:3825-1666091700-1666097100@crc326gaus.de
SUMMARY:Introduction and Overview
DESCRIPTION:GAUS-AG “K-theory of the integers and the Kummer-Vandiver conjecture” \n 
URL:https://crc326gaus.de/event/introduction-and-overview/
LOCATION:Heidelberg\, Mathematikon\, SR 8 und Zoom\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="Christian Dahlhausen":MAILTO:cdahlhausen@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221017T160000
DTEND;TZID=Europe/Berlin:20221017T180000
DTSTAMP:20260409T131133
CREATED:20221006T095010Z
LAST-MODIFIED:20221011T141629Z
UID:3735-1666022400-1666029600@crc326gaus.de
SUMMARY:Outer automorphisms of the absolute Galois group of local fields of mixed characteristic
DESCRIPTION:Theresa Kumpitsch (Universität Frankfurt) \nDisputation
URL:https://crc326gaus.de/event/outer-automorphisms-of-the-absolute-galois-group-of-local-fields-of-mixed-characteristic/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Disputation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20221014T133000
DTEND;TZID=Europe/Berlin:20221014T150000
DTSTAMP:20260409T131133
CREATED:20221005T125135Z
LAST-MODIFIED:20221005T125257Z
UID:3731-1665754200-1665759600@crc326gaus.de
SUMMARY:Towards local uniformization of non-archimedean surfaces
DESCRIPTION:Prof. Dr. Michael Temkin (The Hebrew University of Jerusalem)
URL:https://crc326gaus.de/event/towards-local-uniformization-of-non-archimedean-surfaces/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20221003
DTEND;VALUE=DATE:20221008
DTSTAMP:20260409T131133
CREATED:20210728T140417Z
LAST-MODIFIED:20210914T230834Z
UID:1166-1664755200-1665187199@crc326gaus.de
SUMMARY:Conference on Arithmetic Algebraic Geometry
DESCRIPTION:This is a larger international conference covering Arithmetic Algebraic Geometry in the broad sense. See here for details.
URL:https://crc326gaus.de/event/conference-on-arithmetic-algebraic-geometry/
LOCATION:Darmstadt
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220929T140000
DTEND;TZID=Europe/Berlin:20220929T160000
DTSTAMP:20260409T131133
CREATED:20220912T112539Z
LAST-MODIFIED:20220927T100006Z
UID:3517-1664460000-1664467200@crc326gaus.de
SUMMARY:Nilpotent Higgs bundles and profinite vector bundles in p-adic Hodge theory
DESCRIPTION:Adrian Zorbach (Universität Frankfurt) \nDisputation
URL:https://crc326gaus.de/event/nilpotent-higgs-bundles-and-profinite-vector-bundles-in-p-adic-hodge-theory/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Disputation
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20220926
DTEND;VALUE=DATE:20221001
DTSTAMP:20260409T131133
CREATED:20210728T140037Z
LAST-MODIFIED:20231010T080723Z
UID:1151-1664150400-1664582399@crc326gaus.de
SUMMARY:Women in Arithmetic Geometry
DESCRIPTION:This is a biannual conference to which we invite both promising young mathematicians together with outstanding senior female colleagues.
URL:https://crc326gaus.de/event/women-in-arithmetic-geometry/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Workshop
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220729T140000
DTEND;TZID=Europe/Berlin:20220729T170000
DTSTAMP:20260409T131133
CREATED:20220727T082203Z
LAST-MODIFIED:20220727T082203Z
UID:3392-1659103200-1659114000@crc326gaus.de
SUMMARY:Six Functors and Descent for Solid Sheaves on Discrete Adic Spaces
DESCRIPTION:There will be a „Vorsitzung“ on Thursday (July 28) evening\nat 19:30 in Darmstadt Biergarten\n(Dieburger Strasse 97\, 64287 Darmstadt\, www.biergarten-darmstadt.com)\nEverybody is invited to join. Please write me a short e-mail\nif you are interested in joining.\nZoom\, Meeting-ID 839 7522 1432\nKenncode 053320
URL:https://crc326gaus.de/event/six-functors-and-descent-for-solid-sheaves-on-discrete-adic-spaces/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220722T140000
DTEND;TZID=Europe/Berlin:20220722T174000
DTSTAMP:20260409T131133
CREATED:20220411T114929Z
LAST-MODIFIED:20220720T064802Z
UID:2601-1658498400-1658511600@crc326gaus.de
SUMMARY:The geometry of coherent sheaves: From derived categories to Higgs bundles
DESCRIPTION:GAUS-Workshop: “Non-Abelian Hodge theory for real Lie groups and applications” \n14:00-15:00: Oscar Garcia-Prada (Madrid)\nNon-abelian Hodge correspondence for real groups and higher Teichmüller spaces\n15:20-16:20: Florent Schaffhauser (Bogota)\nHigher Teichmüller spaces for orbifolds\n16:40-17:40: Brian Collier (Riverside)\nHolomorphic curves and cyclic G2-Higgs bundles
URL:https://crc326gaus.de/event/the-geometry-of-coherent-sheaves-from-derived-categories-to-higgs-bundles-4/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220722T133000
DTEND;TZID=Europe/Berlin:20220722T150000
DTSTAMP:20260409T131133
CREATED:20220715T125329Z
LAST-MODIFIED:20220715T125329Z
UID:3326-1658496600-1658502000@crc326gaus.de
SUMMARY:Heights of Bloch cycles and limit mixed Hodge structures
DESCRIPTION:Prof. Robin de Jong (Universität Leiden)
URL:https://crc326gaus.de/event/heights-of-bloch-cycles-and-limit-mixed-hodge-structures/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Dr. Ana Mar%C3%ADa Botero":MAILTO:abotero@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220720T121500
DTEND;TZID=Europe/Berlin:20220720T131500
DTSTAMP:20260409T131133
CREATED:20220701T111243Z
LAST-MODIFIED:20220704T090354Z
UID:3243-1658319300-1658322900@crc326gaus.de
SUMMARY:Lecture Series "Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry"
DESCRIPTION:There will be a 4-talk Lecture series on mixed characteristic algebraic geometry by Kevin Tucker (UIC) during July here in Mainz. The first talk is a Kolloquium style talk and should be interesting for (und largely understandable by) most people; and you can decide if you continue with the other 3\, more demanding (but even more rewarding)\, talks. \nTalk 1: Wednesday July 13: 12:15–13:45\nTalk 2: Monday July 18: 12:15–14:45\nTalk 3: Monday July 18: 16:15–17:45\nTalk 4: Wednesday July 20: 12:15-13:35 \nAll talks are taking place in the Hilbertraum 05-432\, Staudingerweg 9\, 55099 Mainz\, or alternatively via Zoom:\nhttps://zoom.us/j/91070632898?pwd=ODM2a1RlZ1RwdVhxVkg2dEk1Vy9CZz09 Meeting ID: 910 7063 2898 Passcode: 123123 \nTitle: Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry\nSpeaker: Kevin Tucker (University of Illinois at Chicago)\nAbstract: Standard “reduction to characteristic p” techniques have long been used to relate singularities defined via the Frobenius map in positive characteristic and those arising in complex algebraic geometry and the Minimal Model Program (MMP). For example\, log terminal and F-regular singularities are known to correspond to one another via reduction to characteristic p >> 0. Exciting developments have recently made it possible to exploit these connections in the mixed characteristic setting as well\, drawing on the (conjectured) characterization of F-regular rings as splinters in positive characteristic. A ring is a splinter if it is a direct summand of every finite cover\, and Hochster’s direct summand conjecture (now a Theorem) is the modest assertion that a regular ring of any characteristic is a splinter. This conjecture was settled affirmatively by André in 2018 who proved the mixed characteristic case more than three decades after Hochster’s verification of the conjecture in equal characteristic using Frobenius techniques. In these talks\, I will discuss some recent works on splinter rings in mixed and positive characteristics. In particular\, inspired by the result of Bhatt in 2020 on the Cohen-Macaulayness of the absolute integral closure\, I will describe a global notion of splinter in the mixed characteristic setting called global +-regularity with applications to birational geometry in mixed characteristic. This can be seen as a generalization of the theory of globally F-regular pairs from positive to mixed characteristic\, and led to the successful development of the three dimensional MMP in mixed characteristics (0; p > 5).
URL:https://crc326gaus.de/event/lecture-series-on-mixed-characteristic-birational-geometry-4/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220719T140000
DTEND;TZID=Europe/Berlin:20220719T153000
DTSTAMP:20260409T131133
CREATED:20220411T095118Z
LAST-MODIFIED:20220411T095118Z
UID:2588-1658239200-1658244600@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 15: Comparison with algebraic K-theory – Georg Tamme (Universität Mainz)
URL:https://crc326gaus.de/event/seminar-on-etale-motives-16/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220719T140000
DTEND;TZID=Europe/Berlin:20220719T153000
DTSTAMP:20260409T131133
CREATED:20220411T094909Z
LAST-MODIFIED:20220411T094909Z
UID:2586-1658239200-1658244600@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 14: Interlude on algebraic K-theory – tba
URL:https://crc326gaus.de/event/seminar-on-etale-motives-15/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220718T161500
DTEND;TZID=Europe/Berlin:20220718T174500
DTSTAMP:20260409T131133
CREATED:20220701T111115Z
LAST-MODIFIED:20220704T090302Z
UID:3241-1658160900-1658166300@crc326gaus.de
SUMMARY:Lecture Series "Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry"
DESCRIPTION:There will be a 4-talk Lecture series on mixed characteristic algebraic geometry by Kevin Tucker (UIC) during July here in Mainz. The first talk is a Kolloquium style talk and should be interesting for (und largely understandable by) most people; and you can decide if you continue with the other 3\, more demanding (but even more rewarding)\, talks. \nTalk 1: Wednesday July 13: 12:15–13:45\nTalk 2: Monday July 18: 12:15–14:45\nTalk 3: Monday July 18: 16:15–17:45\nTalk 4: Wednesday July 20: 12:15-13:35 \nAll talks are taking place in the Hilbertraum 05-432\, Staudingerweg 9\, 55099 Mainz\, or alternatively via Zoom:\nhttps://zoom.us/j/91070632898?pwd=ODM2a1RlZ1RwdVhxVkg2dEk1Vy9CZz09 Meeting ID: 910 7063 2898 Passcode: 123123 \nTitle: Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry\nSpeaker: Kevin Tucker (University of Illinois at Chicago)\nAbstract: Standard “reduction to characteristic p” techniques have long been used to relate singularities defined via the Frobenius map in positive characteristic and those arising in complex algebraic geometry and the Minimal Model Program (MMP). For example\, log terminal and F-regular singularities are known to correspond to one another via reduction to characteristic p >> 0. Exciting developments have recently made it possible to exploit these connections in the mixed characteristic setting as well\, drawing on the (conjectured) characterization of F-regular rings as splinters in positive characteristic. A ring is a splinter if it is a direct summand of every finite cover\, and Hochster’s direct summand conjecture (now a Theorem) is the modest assertion that a regular ring of any characteristic is a splinter. This conjecture was settled affirmatively by André in 2018 who proved the mixed characteristic case more than three decades after Hochster’s verification of the conjecture in equal characteristic using Frobenius techniques. In these talks\, I will discuss some recent works on splinter rings in mixed and positive characteristics. In particular\, inspired by the result of Bhatt in 2020 on the Cohen-Macaulayness of the absolute integral closure\, I will describe a global notion of splinter in the mixed characteristic setting called global +-regularity with applications to birational geometry in mixed characteristic. This can be seen as a generalization of the theory of globally F-regular pairs from positive to mixed characteristic\, and led to the successful development of the three dimensional MMP in mixed characteristics (0; p > 5).
URL:https://crc326gaus.de/event/lecture-series-on-mixed-characteristic-birational-geometry-3/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220718T121500
DTEND;TZID=Europe/Berlin:20220718T144500
DTSTAMP:20260409T131133
CREATED:20220701T110952Z
LAST-MODIFIED:20220704T090227Z
UID:3239-1658146500-1658155500@crc326gaus.de
SUMMARY:Lecture Series "Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry"
DESCRIPTION:There will be a 4-talk Lecture series on mixed characteristic algebraic geometry by Kevin Tucker (UIC) during July here in Mainz. The first talk is a Kolloquium style talk and should be interesting for (und largely understandable by) most people; and you can decide if you continue with the other 3\, more demanding (but even more rewarding)\, talks. \nTalk 1: Wednesday July 13: 12:15–13:45\nTalk 2: Monday July 18: 12:15–14:45\nTalk 3: Monday July 18: 16:15–17:45\nTalk 4: Wednesday July 20: 12:15-13:35 \nAll talks are taking place in the Hilbertraum 05-432\, Staudingerweg 9\, 55099 Mainz\, or alternatively via Zoom:\nhttps://zoom.us/j/91070632898?pwd=ODM2a1RlZ1RwdVhxVkg2dEk1Vy9CZz09 Meeting ID: 910 7063 2898 Passcode: 123123 \nTitle: Some recent developments in singularity theory in mixed and positive characteristic algebraic geometry\nSpeaker: Kevin Tucker (University of Illinois at Chicago)\nAbstract: Standard “reduction to characteristic p” techniques have long been used to relate singularities defined via the Frobenius map in positive characteristic and those arising in complex algebraic geometry and the Minimal Model Program (MMP). For example\, log terminal and F-regular singularities are known to correspond to one another via reduction to characteristic p >> 0. Exciting developments have recently made it possible to exploit these connections in the mixed characteristic setting as well\, drawing on the (conjectured) characterization of F-regular rings as splinters in positive characteristic. A ring is a splinter if it is a direct summand of every finite cover\, and Hochster’s direct summand conjecture (now a Theorem) is the modest assertion that a regular ring of any characteristic is a splinter. This conjecture was settled affirmatively by André in 2018 who proved the mixed characteristic case more than three decades after Hochster’s verification of the conjecture in equal characteristic using Frobenius techniques. In these talks\, I will discuss some recent works on splinter rings in mixed and positive characteristics. In particular\, inspired by the result of Bhatt in 2020 on the Cohen-Macaulayness of the absolute integral closure\, I will describe a global notion of splinter in the mixed characteristic setting called global +-regularity with applications to birational geometry in mixed characteristic. This can be seen as a generalization of the theory of globally F-regular pairs from positive to mixed characteristic\, and led to the successful development of the three dimensional MMP in mixed characteristics (0; p > 5).
URL:https://crc326gaus.de/event/lecture-series-on-mixed-characteristic-birational-geometry-2/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-Event
END:VEVENT
END:VCALENDAR