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'''AG Seminar''' Sommer Semester 22 
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'''AG Seminar'''  
 
 
  
 
'''Description:''' The aim of the Seminar is to present and discuss recent results in research areas from Homotopy Theory and K-theory to Global Analysis.  
 
'''Description:''' The aim of the Seminar is to present and discuss recent results in research areas from Homotopy Theory and K-theory to Global Analysis.  
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'''Zoom Link:''' https://uni-regensburg.zoom.us/j/7601042838?pwd=bUVEaHhuY01abmo4T3Fza1NZMEVNUT09
 
'''Zoom Link:''' https://uni-regensburg.zoom.us/j/7601042838?pwd=bUVEaHhuY01abmo4T3Fza1NZMEVNUT09
  
<hr>
+
 
 +
 
 +
 
 +
'''Winter Semester 2023/24'''
 +
 
 +
 
 +
'''Schedule'''
 +
 
 +
{|border="1"
 +
!No
 +
!Date
 +
!Title / Abstract
 +
!Speaker
 +
|-
 +
|1
 +
|19.10.2023
 +
|[[On the motivic Adams conjecture]]
 +
|Alexey Ananyevskiy
 +
|-
 +
|2
 +
|26.10.2023
 +
|[[Dualizable categories and E-Theory]]
 +
|Benjamin Dünzinger/Ulrich Bunke
 +
|-
 +
|3
 +
|02.11.2023 
 +
|[[Dualizable categories and E-Theory-II]]
 +
|Benjamin Dünzinger/Ulrich Bunke
 +
|-
 +
|4
 +
|09.11.2023 
 +
|[[A pro-cdh topology and motivic cohomology of schemes]] 
 +
|Shuji Saito
 +
|-
 +
|5
 +
|16.11.2023
 +
|Cohomological invariants of quadrics via Morava motives
 +
|Pavel Sechin 
 +
|-
 +
|6
 +
|23.11.2023
 +
|Formal category theory within ∞-categorical proarrow equipments
 +
|Jaco Ruit
 +
|-
 +
|7
 +
|30.11.2023
 +
|
 +
|
 +
|-
 +
|8
 +
|07.12.2023
 +
|[[Motivic cohomology of mixed characteristic schemes]]
 +
|Tess Bouis
 +
|-
 +
|9
 +
|14.12.2023
 +
|[[Six-functor formalisms are compactly supported]]
 +
|Josefien Kuijper
 +
|-
 +
|10
 +
|21.12.2023
 +
|Towards a pro-étale homotopy type of schemes
 +
| Sebastian wolf
 +
|-
 +
|11
 +
|11.01.2024
 +
|
 +
|
 +
|-
 +
|12
 +
|18.01.2024
 +
|Gabber's presentation lemma over a general base
 +
|Suraj Yadav
 +
|-
 +
|13
 +
|25.01.2024
 +
|[[Chow-Lefschetz motives]]
 +
|Bruno Kahn
 +
|-
 +
|14
 +
|01.02.2024
 +
|[[Topological Modular Forms and supersymmetric quantum field theories]]
 +
|Mayuko Yamashita
 +
|-
 +
|15
 +
|08.02.2024
 +
|[[Group completion of E_n-spaces and infinite products]]
 +
|Georg Lehner (FU Berlin)
 +
|-
 +
|}
 +
 
 +
 
 +
 
 +
<hr><hr>
 +
 
 +
 
 +
 
 +
 
 +
 
 +
'''Summer Semester 2023'''
 +
 
 +
 
 +
'''Schedule'''
 +
 
 +
{|border="1"
 +
!No
 +
!Date
 +
!Title / Abstract
 +
!Speaker
 +
|-
 +
|1
 +
|20.04.2023
 +
 +
|
 +
|-
 +
|2
 +
|27.04.2023 '''12:30'''
 +
|Universality and Examples in the Context of Functorial Semi-Norms (PhD defense) 
 +
|Johannes Witzig 
 +
|-
 +
|3
 +
|04.05.2023 
 +
|No seminar   
 +
|
 +
|-
 +
|4
 +
|11.05.2023 
 +
|tba
 +
|Hoang Kim Nguyen
 +
|-
 +
|5
 +
|18.05.2023
 +
|No seminar (holiday)
 +
 +
|-
 +
|6
 +
|25.05.2023
 +
|[[Separability in homotopical algebra]]
 +
|Maxime Ramzi (Copenhagen)
 +
|-
 +
|7
 +
|01.06.2023
 +
|[[Blow-ups and normal bundles in nonconnective derived geometry]]
 +
|Jeroen Hekking
 +
|-
 +
|8
 +
|08.06.2023
 +
|No seminar (holiday)
 +
|
 +
|-
 +
|9
 +
|15.06.2023
 +
|The theorem of the heart
 +
|Giacomo Bertizzolo 
 +
|-
 +
|10
 +
|22.06.2023
 +
|[[Shapes and locally constant sheaves]]
 +
| Marc Hoyois
 +
|-
 +
|11
 +
|29.06.2023
 +
|Norms and Transfers in Motivic Homotopy Theory
 +
|Brian Shin
 +
|-
 +
|12
 +
|06.07.2023
 +
|[[On the category of localizing motives]]
 +
|Alexander Efimov
 +
|-
 +
|13
 +
|13.07.2023
 +
|Twisted ambidexterity in equivariant homotopy theory
 +
|Bastiaan Cnossen
 +
|-
 +
|14
 +
|20.07.2023
 +
| (reserved)
 +
|
 +
|-
 +
|}
 +
 
 +
 
 +
<hr> <hr>
 +
 
 +
 
 +
'''Winter Semester 22/23'''
 +
 
 +
 
 +
'''Schedule'''
 +
 
 +
{|border="1"
 +
!No
 +
!Date
 +
!Title / Abstract
 +
!Speaker
 +
|-
 +
|1
 +
|20.10.2022
 +
|Model categories for o-minimal geometry 
 +
|Reid Barton (Univ. Freiburg)
 +
|-
 +
|2
 +
|27.10.2022
 +
 +
|
 +
|-
 +
|3
 +
|03.11.2022 '''[online]'''
 +
|The reductive Borel-Serre compactification as a model for unstable algebraic K-theory 
 +
|Mikala Ørsnes Jansen (Copenhagen) 
 +
|-
 +
| 4
 +
|10.11.2022 
 +
| [[Traces and categorification]]
 +
| Bastiaan Cnossen (Bonn) 
 +
|-
 +
|5
 +
|17.11.2022
 +
|no seminar
 +
 +
|-
 +
|6
 +
|24.11.2022
 +
| [[Cut and paste invariants of manifolds via K-theory]]
 +
| Julia Semikina (Münster)
 +
|-
 +
|7
 +
|01.12.2022 
 +
|Discussion on Duality and Transfer I: Becker-Gottlieb transfer, Atiyah-Duality and A-theory transfer 
 +
|Bunke/Winges/Raptis 
 +
|-
 +
|8
 +
|08.12.2022
 +
|Discussion on Duality and Transfer II: Fibrewise duality and transfer, functoriality   
 +
|N.N 
 +
|-
 +
|9
 +
|15.12.2022
 +
|[[Unipotent homotopy theory of schemes]]
 +
|Shubhodip Mondal (MPIM Bonn) 
 +
|-
 +
|10
 +
|22.12.2023
 +
|[[The stable cohomology of symplectic groups of the integers]]
 +
|Fabian Hebestreit (Aberdeen)
 +
|-
 +
|11
 +
|12.01.2023
 +
|[[The logic of étale maps]]
 +
|Mathieu Anel (Carnegie Mellon University) 
 +
|-
 +
|12
 +
|19.01.2023
 +
|[[Decoupling Moduli of Configurations Spaces on Surfaces]]
 +
|Luciana Basualdo Bonatto (MPIM Bonn)
 +
|-
 +
|13
 +
|26.01.2023
 +
|The K_2-analogue of Bass-Quillen conjecture and A1-fundamental groups of Chevalley groups.
 +
|Sergey Sinchuk (Munich, JetBrains GmbH) 
 +
|-
 +
|14
 +
|02.02.2023
 +
|Genuine equivariant hermitian K-theory for finite groups
 +
|Kaif Hilman (MPIM Bonn)
 +
|-
 +
|15
 +
|09.02.2023 
 +
| Proper morphisms of infinity topoi
 +
| Louis Martini (NTNU Trondheim)
 +
|}
 +
 
 +
<hr><hr>
 +
 
 +
 
 +
'''Summer Semester 2022'''
  
  
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|6
 
|6
 
| 02.06.2022
 
| 02.06.2022
| tja
+
| [[Cdh motivic cohomology via prisms]]
 
| E. Elmanto (Harvard)  
 
| E. Elmanto (Harvard)  
 
|-
 
|-
 
|7
 
|7
| 09.06.2022
+
| 09.06.2022 '''[online]'''
|  Exponential periods
+
[[Exponential periods and o-minimality]]
 
|  Johan Commelin (Freiburg)  
 
|  Johan Commelin (Freiburg)  
 
|-
 
|-
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|9
 
|9
 
| 23.06.2022
 
| 23.06.2022
| tba
+
| [[Excisive Approximation of l^1-Homology]]
 
| J. Witzig (Regensburg)  
 
| J. Witzig (Regensburg)  
 
|-
 
|-
Line 71: Line 346:
 
|11
 
|11
 
| 07.07.2022
 
| 07.07.2022
| tba
+
| Posets for which Verdier duality holds
 
| Ko Aoki (MPIM Bonn)
 
| Ko Aoki (MPIM Bonn)
 
|-
 
|-
 
|12
 
|12
 
| 14.07.2022
 
| 14.07.2022
| tba
+
| [[Synthetic (∞,1)-category theory in simplicial homotopy type theory]]
| Jonathan Weinberger (MPIM Bonn)
+
| Jonathan Weinberger (Johns Hopkins University)
 
|-
 
|-
 
|13
 
|13
 
| 21.07.2022
 
| 21.07.2022
| tba
+
| Artin motivic tensor-triangular geometry
 
| Martin Gallauer (MPIM Bonn)
 
| Martin Gallauer (MPIM Bonn)
 
|-
 
|-
 +
|14
 +
| 28.07.2022
 +
| X. Bavarian Geometry & Topology Meeting 
 +
| (Augsburg)
 
|}
 
|}
  
 +
<hr><hr>
  
  
 +
'''Winter Semester 2021/22'''
  
 
 
 
<hr><hr>
 
 
 
'''previous semester''' (Winter Semester 2021/22)
 
  
+
'''Schedule'''
  
 
{|border="1"
 
{|border="1"

Latest revision as of 16:18, 2 February 2024

AG Seminar

Description: The aim of the Seminar is to present and discuss recent results in research areas from Homotopy Theory and K-theory to Global Analysis.

Time and place: Thursday 12-14, SFB Lecture Hall.

Zoom Link: https://uni-regensburg.zoom.us/j/7601042838?pwd=bUVEaHhuY01abmo4T3Fza1NZMEVNUT09



Winter Semester 2023/24


Schedule

No Date Title / Abstract Speaker
1 19.10.2023 On the motivic Adams conjecture Alexey Ananyevskiy
2 26.10.2023 Dualizable categories and E-Theory Benjamin Dünzinger/Ulrich Bunke
3 02.11.2023 Dualizable categories and E-Theory-II Benjamin Dünzinger/Ulrich Bunke
4 09.11.2023 A pro-cdh topology and motivic cohomology of schemes Shuji Saito
5 16.11.2023 Cohomological invariants of quadrics via Morava motives Pavel Sechin
6 23.11.2023 Formal category theory within ∞-categorical proarrow equipments Jaco Ruit
7 30.11.2023
8 07.12.2023 Motivic cohomology of mixed characteristic schemes Tess Bouis
9 14.12.2023 Six-functor formalisms are compactly supported Josefien Kuijper
10 21.12.2023 Towards a pro-étale homotopy type of schemes Sebastian wolf
11 11.01.2024
12 18.01.2024 Gabber's presentation lemma over a general base Suraj Yadav
13 25.01.2024 Chow-Lefschetz motives Bruno Kahn
14 01.02.2024 Topological Modular Forms and supersymmetric quantum field theories Mayuko Yamashita
15 08.02.2024 Group completion of E_n-spaces and infinite products Georg Lehner (FU Berlin)






Summer Semester 2023


Schedule

No Date Title / Abstract Speaker
1 20.04.2023
2 27.04.2023 12:30 Universality and Examples in the Context of Functorial Semi-Norms (PhD defense) Johannes Witzig
3 04.05.2023 No seminar
4 11.05.2023 tba Hoang Kim Nguyen
5 18.05.2023 No seminar (holiday)
6 25.05.2023 Separability in homotopical algebra Maxime Ramzi (Copenhagen)
7 01.06.2023 Blow-ups and normal bundles in nonconnective derived geometry Jeroen Hekking
8 08.06.2023 No seminar (holiday)
9 15.06.2023 The theorem of the heart Giacomo Bertizzolo
10 22.06.2023 Shapes and locally constant sheaves Marc Hoyois
11 29.06.2023 Norms and Transfers in Motivic Homotopy Theory Brian Shin
12 06.07.2023 On the category of localizing motives Alexander Efimov
13 13.07.2023 Twisted ambidexterity in equivariant homotopy theory Bastiaan Cnossen
14 20.07.2023 (reserved)





Winter Semester 22/23


Schedule

No Date Title / Abstract Speaker
1 20.10.2022 Model categories for o-minimal geometry Reid Barton (Univ. Freiburg)
2 27.10.2022
3 03.11.2022 [online] The reductive Borel-Serre compactification as a model for unstable algebraic K-theory Mikala Ørsnes Jansen (Copenhagen)
4 10.11.2022 Traces and categorification Bastiaan Cnossen (Bonn)
5 17.11.2022 no seminar
6 24.11.2022 Cut and paste invariants of manifolds via K-theory Julia Semikina (Münster)
7 01.12.2022 Discussion on Duality and Transfer I: Becker-Gottlieb transfer, Atiyah-Duality and A-theory transfer Bunke/Winges/Raptis
8 08.12.2022 Discussion on Duality and Transfer II: Fibrewise duality and transfer, functoriality N.N
9 15.12.2022 Unipotent homotopy theory of schemes Shubhodip Mondal (MPIM Bonn)
10 22.12.2023 The stable cohomology of symplectic groups of the integers Fabian Hebestreit (Aberdeen)
11 12.01.2023 The logic of étale maps Mathieu Anel (Carnegie Mellon University)
12 19.01.2023 Decoupling Moduli of Configurations Spaces on Surfaces Luciana Basualdo Bonatto (MPIM Bonn)
13 26.01.2023 The K_2-analogue of Bass-Quillen conjecture and A1-fundamental groups of Chevalley groups. Sergey Sinchuk (Munich, JetBrains GmbH)
14 02.02.2023 Genuine equivariant hermitian K-theory for finite groups Kaif Hilman (MPIM Bonn)
15 09.02.2023 Proper morphisms of infinity topoi Louis Martini (NTNU Trondheim)



Summer Semester 2022


Schedule

No Date Title / Abstract Speaker
1 28.04.2022 Devissage in algebraic K-theory (0) George Raptis
2 05.05.2022 Devissage in algebraic K-theory (1) Marco Volpe
3 12.05.2022
4 19.05.2022 [online] Universal cohomology theories Luca Barbieri Viale (Milan)
5 26.05.2022 Christi-Himmelfahrt -
6 02.06.2022 Cdh motivic cohomology via prisms E. Elmanto (Harvard)
7 09.06.2022 [online] Exponential periods and o-minimality Johan Commelin (Freiburg)
8 16.06.2022 Fronleichnam -
9 23.06.2022 Excisive Approximation of l^1-Homology J. Witzig (Regensburg)
10 30.06.2022
11 07.07.2022 Posets for which Verdier duality holds Ko Aoki (MPIM Bonn)
12 14.07.2022 Synthetic (∞,1)-category theory in simplicial homotopy type theory Jonathan Weinberger (Johns Hopkins University)
13 21.07.2022 Artin motivic tensor-triangular geometry Martin Gallauer (MPIM Bonn)
14 28.07.2022 X. Bavarian Geometry & Topology Meeting (Augsburg)



Winter Semester 2021/22


Schedule

No Date Title / Abstract Speaker
1 21.10.2021 Derived microlocal sheaf theory Adeel Khan (Academia Sinica)
2 28.10.2021
3 4.11.2021 Bounded cohomology and homotopy colimits George Raptis
4 11.11.2021 Filter Quotient ∞-Categories Nima Rasekh (EPFL)
5 18.11.2021 ***** SFB Meeting in Windberg
6 25.11.2021 Quadratic enrichments of enumerative counts using Atiyah-Bott localization Sabrina Pauli (Duisburg-Essen)
7 2.12.2021 The Chow t-structure on the ∞-category of motivic spectra Tom Bachmann (LMU)
8 9.12.2021 G-global homotopy theory and algebraic K-theory Tobias Lenz (Bonn)
9 16.12.2021 ***** 9th Bavarian Geometry & Topology Meeting
10 13.1.2022 cancelled
11 20.1.2022 Topological Fukaya categories of symmetric powers Tobias Dyckerhoff (Hamburg)
12 27.1.2022 Unstraightening for Segal spaces Joost Nuiten (Toulouse)
13 3.2.2022 Polynomial monads, Grothendieck homotopy theory and delooping of spaces of long knots Michael Batanin (Prague)
14 10.2.2022 Homotopy links and stratified homotopy theories Sylvain Douteau (Stockholm)
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