Groups acting on fractals, hyperbolicity and self-similarity, Paris

11 avr. 2022, 08:30 → 8 juil. 2022, 19:30 Europe/Paris

Amphitheater Darboux (IHP)

Thematic trimester program at Institut Henri Poincaré, Paris

Groups acting on fractals, hyperbolicity and self-similarity

April 11th to July 8th, 2022

 

Back to the thematic trimester main page.

Program : 

 

First week  -- April 11th to 15th, 2022 CIRM Introductory School (Marseille) 

 

IHP Program : 19-22 April,  
Mini-course "Projection complexes and applications to mapping class groups" by M. Bestvina.  
Tuesday 2pm, Wednesday 2pm, Friday 10am,  Live at https://www.ihp.fr/fr
Recordings.  -Lecture 1-  -Lecture 2- - Lecture 3 - (no sound for 11’ in lecture 3)

 

--  April 25th to 29th, 2022: Conference Mapping class groups and Out(Fn) (IHP, Paris)

 

IHP Program : 2-13 may,  
Mini-course "Random walks on Grigorchuk groups and growth estimates",  by T. Zheng.
Slightly postponed !  Tuesday 10th 2pm,  Wednesday 11th 2pm, Friday 13th 10am.    Live at https://www.ihp.fr/fr

 

IHP Program : 16-20 may,
Mini-course "Hyperbolic groupoids" by V. Nekrashevych.
Tuesday 2pm, Wednesday 2pm, Friday 10am, Live at https://www.ihp.fr/fr
Lecture 1 (audio missing)  -Lecture 2-  - Lecture 3 -

 

IHP Program : 23-27 may, 
Mini-course  (Applications of descriptive set theory to the study of geometric and model theoretic properties of groups.) by D. Osin.
Tuesday 2pm, Wednesday 2pm, Friday 10am, Live at https://www.ihp.fr/fr
-Lecture 1-  -Lecture 2-

--  May 30th to June 3rd, 2022:  Conference Self-similarity of groups, trees and fractals (IHP, Paris).

 

IHP Program : 7-17 June, 
Mini-course by J. Mackay (Conformal dimension and hyperbolic groups).
Tuesdays 2pm, Wednesdays 2pm,  Live at https://www.ihp.fr/fr
 

--  June 20th to 24th, 2022 : Conference  Hyperbolic groups and their generalisations (IHP, Paris).

 

IHP Program : 27 June-8 July, TBA. 

 

Comité d’organisation scientifique :

• François Dahmani (Université Grenoble Alpes)
• Anna Erschler (ENS Paris)
• Camille Horbez (Université Paris Saclay)
• Dani Wise (McGill University)

 

Poster T2-2022.pdf

Authorization to use images IHP-EN-Authorization-to-use-images-captations.pdf

lundi 11 avril ¶

1 1/4¶

mini course of Tianyi Zheng

mardi 19 avril ¶

2 Projection complexes and applications to mapping class groups 1/3¶

Minicours par Mladen Bestvina

http://omnilive.ihp.fr:8080/625ea4c4118ec916c0e8aac1

mercredi 20 avril ¶

3 Projection complexes and applications to mapping class groups 2/3¶

Minicours par Mladen Bestvina

vendredi 22 avril ¶

4 Projection complexes and applications to mapping class groups 3/3¶

Minicours par Mladen Bestvina

mardi 26 avril ¶

5 Conference "Mapping Class Groups and Out(F_n)". 1¶

6 Conference "Mapping Class Groups and Out(F_n)". 1¶

7 Conference "Mapping Class Groups and Out(F_n)". 1¶

8 Conference "Mapping Class Groups and Out(F_n)". 1¶

9 Conference "Mapping Class Groups and Out(F_n)". 1¶

mercredi 27 avril ¶

10 Conference "Mapping Class Groups and Out(F_n)". 1¶

11 Conference "Mapping Class Groups and Out(F_n)". 1¶

12 Conference "Mapping Class Groups and Out(F_n)". 1¶

13 Conference "Mapping Class Groups and Out(F_n)". 1¶

14 Conference "Mapping Class Groups and Out(F_n)". 1¶

jeudi 28 avril ¶

15 Conference "Mapping Class Groups and Out(F_n)". 1¶

16 Conference "Mapping Class Groups and Out(F_n)". 1¶

17 Conference "Mapping Class Groups and Out(F_n)". 1¶

18 Conference "Mapping Class Groups and Out(F_n)". 1¶

19 Conference "Mapping Class Groups and Out(F_n)". 1¶

vendredi 29 avril ¶

20 Conference "Mapping Class Groups and Out(F_n)". 1¶

21 Conference "Mapping Class Groups and Out(F_n)". 1¶

22 Conference "Mapping Class Groups and Out(F_n)". 1¶

mardi 3 mai ¶

23 Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

Orateurs: Abdalrazzaq Zalloum, Sami Douba (McGill University), Shaked Bader , Thomas Ng (Technion)

mercredi 4 mai ¶

Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

Présidents de session: Abdalrazzaq Zalloum, Sami Douba (McGill University), Shaked Bader , Thomas Ng (Technion)

mardi 10 mai ¶

Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

Présidents de session: Abdalrazzaq Zalloum, Shaked Bader , Thomas Ng (Technion)

24 Random walks on Grigorchuk groups and growth estimates, by T. Zheng 1/3¶

Minicours de Tianyi Zheng

mercredi 11 mai ¶

Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

Présidents de session: Abdalrazzaq Zalloum, Shaked Bader , Thomas Ng (Technion)

25 Random walks on Grigorchuk groups and growth estimates, 2/3 by T. Zheng¶

Mini cours de Tianyi Zheng

vendredi 13 mai ¶

26 Random walks on Grigorchuk groups and growth estimates, 3/3, by Tianyi Zheng¶

Minicours de Tianyi Zheng

mardi 17 mai ¶

27 Seminar - Jingyn Huang: Measure equivalence superrigidity for some generalized Higman groups¶

Orateur: Jingyin Huang (Ohio State University)

mercredi 18 mai ¶

28 Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

29 Seminar - Dani Wise: Continuously many different residually finite groups¶

vendredi 20 mai ¶

30 Mini course- Volodia Nekrashevych: Hyperbolic groupoids 1/3¶

Minicours de Volodia Nekrashevych

Seminar exclusively targeting graduate students and post-docs¶

Some participants of the program started an informal seminar on topics related to geometric group theory. Such a seminar exclusively targets graduate students and post-docs.

Each week will contain a set of lectures/a mini course taught by a graduate student or a post-doc.

No recording. No live retransmission.

Présidents de session: Abdalrazzaq Zalloum, Paige Helms (University of Washington), Shaked Bader , Thomas Ng (Technion)

lundi 23 mai ¶

31 Hyperbolic groupoids, 2/3¶

Minicours de Volodia Nekrashevych

mardi 24 mai ¶

32 Hyperbolic groupoids, 3/3¶

Minicours de Volodia Nekrashevych

33 Applications of descriptive set theory to the study of geometric and model theoretic properties of groups 1/2¶

Minicours de Denis Osin

mercredi 25 mai ¶

34 Applications of descriptive set theory to the study of geometric and model theoretic properties of groups 2/2¶

Minicours de Denis Osin

lundi 30 mai ¶

35 Talk 1 - Laurent Bartholdi¶

10:40 Break

36 Talk 2- Nicolas Matte Bon¶

37 Talk 3- Adrien Le Boudec¶

38 Talk 4- Collin Bleak¶

15:50 Break

39 Talk 5- Volodia Nekrashevych¶

mardi 31 mai ¶

40 Talk 1 - Bruno Duchesne¶

41 Talk 2- Francesco Matucci¶

10:50 Break

42 Talk 3- Alexander Teplyaev¶

43 Talk 4 - Nicolas Monod¶

44 Talk 5 - Yash Lodha¶

15:50 Break

45 Talk 6- Victor Guba¶

mercredi 1 juin ¶

46 Talk 1- Jeremie Brieussel¶

47 Talk 2- Ivan Mitrofanov¶

10:50 Break

48 Talk 3- Marialaura Noce¶

49 Talk 4 - Rostislav Grigorchuk¶

50 Talk 5 - Alejandra Garrido¶

15:50 Break

51 Talk 6- Kate Juschenko¶

jeudi 2 juin ¶

52 Talk 1 - Dominik Francoeur¶

53 Talk 2 - Yair Hartman¶

10:50 Break

54 Talk 4 - Vadim Kaimanovich¶

55 Talk 5 - Anitha Thillasundaram¶

15:50 Break

56 Talk 6 - Omer Tamuz¶

vendredi 3 juin ¶

57 Talk 1 - Yves de Cornulier¶

58 Talk 2 - Tianyi Zheng¶

10:50 Break

59 Talk 3 - Mikael de la Salle¶

60 Talk 4 - Josh Frisch¶

mardi 7 juin ¶

61 Graduate students/Post-docs seminar - Rodrigo De Pool¶

Finite rigidity and automorphisms of the non separating curve complex

No live- No recording

Orateur: Rodrigo Alonso De Pool Alcántara (ICMAT)

62 1/4¶

Minicours de John Mackay

mercredi 8 juin ¶

63 Graduate students/Post-docs seminar - Corentin Lebars¶

Boundary theory and non-positive curvature (1/2)

No live No recording

Orateur: Corentin Lebars

64 2/4¶

Minicours de John Mackay

mardi 14 juin ¶

65 Graduate students/Post-docs seminar - Corentin Lebars¶

Boundary theory and non-positive curvature (2/2)

No live - No recording

Orateur: Corentin Lebars

66 3/4 Minicours de John Mackay¶

Conformal dimension and hyperbolic groups (2/3)

mercredi 15 juin ¶

67 Graduate students/Post-docs seminar - Xabier Legaspi Juanatey¶

No live - No recording
The geometry of constricting elements

Orateur: Xabier Legaspi Juanatey

68 4/4¶

Minicours de John Mackay

jeudi 16 juin ¶

69 CANCELLED¶

TBA

vendredi 17 juin ¶

70 Seminar- Mahan MJ¶

Combining Fuchsian groups with polynomial dynamics via orbit equivalence

lundi 20 juin ¶

08:45 Participants registration

71 Talk 1- Koji Fujiwara¶

Title: The rates of growth in an acylindrically hyperbolic group

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

10:30 Coffee Break

72 Talk 2- Ashot Minasyan¶

Title: Quasiconvexity of virtual joins and separability of products in relatively hyperbolic groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

73 Talk 3- Emily Stark¶

Title: Graphically discrete groups and rigidity.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

15:00 Coffee Break

74 Talk 4 - Kathryn Mann:¶

Title: Boundary rigidity for hyperbolic groups

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

75 Lightening Talks¶

mardi 21 juin ¶

76 Talk 1 - Harry Petyt¶

Title: Hyperbolic models for CAT(0) spaces.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

10:30 Coffee Break

77 Talk 2- Pallavi Dani¶

Title: Divergence, thickness, and hypergraph index for Coxeter groups

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

78 Talk 3 - Henry Wilton¶

Title: Rational curvature invariants of 2-dimensional complexes.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

15:00 Coffee Break

79 Talk 4 - Tobias Hartnick - ONLINE¶

Title: The quest for new hyperbolic approximate groups.

80 Talk 5 - Carolyn Abbott - ONLINE¶

Title: Acylindrically hyperbolic groups and their quasi-isometrically embedded subgroups.

mercredi 22 juin ¶

81 Talk 1- Alice Kerr¶

Title: Product set growth in mapping class groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

10:00 Coffee Break

82 Talk 2 - Matt Durham¶

Title: The geometry of genericity in mapping class groups and Teichmüller spaces via CAT(0) cube complexes

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

83 Talk 3 - Jean Lecureux¶

Title: Central Limit Theorem for groups acting on a CAT(0) cubical complex.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

jeudi 23 juin ¶

84 Talk 1 - Kasia Jankiewicz¶

Title: Right-angled Artin subgroups of Artin groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

10:30 Coffee Break

85 Talk 2- Nir Lazarovich - ONLINE TBC¶

Title: Volume vs. complexity of hyperbolic groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

86 Talk 3 - Sam Sheperd¶

Title: Commensurability of lattices in right-angled buildings.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

15:00 Coffee Break

87 Talk 4 - Simon André¶

Title: On the Tarski problem for hyperbolic groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

88 Talk 5 - Alessandro Sisto¶

Title: (Hierarchically) hyperbolic quotients of mapping class groups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

vendredi 24 juin ¶

89 Talk 1 - Thomas Haettel¶

Title: Torsion groups and Helly graphs.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

10:00 Coffee Break

90 Talk 2 - Urs Lang¶

Title: A combinatorial higher rank hyperbolicity condition.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

91 Talk 3 - Genevieve Walsh¶

Title: Planar boundaries and parabolic subgroups.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407

92 Talk 4 - Zlil Sela¶

Title: Automorphisms of groups and a higher rank JSJ decomposition.

At IHP and broadcasting live:
Live section at : https://www.ihp.fr/fr
or
https://omnilive.ihp.fr/player/?m=~5e134b7d65a9611679e03407