Manifolds and Groups

The conference took place in Ventotene, Italy from the 7th until the 12th of September 2015.

Stefano Francaviglia (Università di Bologna)

Roberto Frigerio (Università di Pisa)

Alessandra Iozzi (ETHZ)

Kate Juschenko (Northwestern University)

Gabriele Mondello (Università di Roma La Sapienza)

Michah Sageev (Technion)

We gratefully acknowledge the generous support of:

• the U.S.A. National Science Foundation
• Nicolas Monod's European Research Council grant
• the Zürich Graduate School of Mathematics
• Emmanuel Kowalski's ETHZ research grant
• the Department of Mathematics of ETHZ
• the GNSAGA from the Istituto Nazionale di Alta Matematica
• the Compositio Foundation
• the PRIN from the Università di Pisa "Varietà reali e complesse: geometria, topologia e analisi armonica" (national coordinator: Fulvio Ricci, local coordinator: Riccardo Benedetti) and the PRIN from the Università di Roma Sapienza "Spazi di moduli e teoria di Lie" (national and local coordinator: Corrado De Concini)
• the FIRB (Università di Pisa)
• the Department of Mathematics of the Università di Bologna
• the Swiss Mathematical Society
• the ANR-10-BLAN 0116, GGAA
• the Stiftung zur Förderung der mathematischen Wissenschaften in der Schweiz

In addition to the minicourses there were 75' morning talks to complement the minicourses and nine 45' afternoon talks.

Here is the complete schedule.  The talks were held in the Centro Polivalente, very near the Hotel Isolabella.  (Here is also a picture of the Centro Polivalente during a talk of the European Federalist Movement:  there are not whiteboards as we have just bought them.)

Morning speakers:

• Expanders, fixed point properties on Banach spaces and random graphs, Cornelia Drutu (Oxford University)
• Survey on L^2-torsion, Wolfgang Lück (Hausdorff Institute, Bonn) [slides]
• On the growth of torsion in homology of finite index subgroups, Nikolay Nikolov (Oxford University)

Afternoon speakers:

• Bounds on the homology torsion, Uri Bader (Weizmann Institute)
  
• Finite covers of 3-manifolds, virtual Thurston norms and simplicial volume, Michel Boileau (Université de Toulouse)[slides]
• Expansion, Random Walks and Sieving in SL(2,F_p [t]), Henry Bradford (Oxford University)
• Profinite rigidity and low dimensional orbifolds, Martin Bridson (Oxford University)
• How much cohomology do arithmetic groups have?, Frank Calegari (University of Chicago)
• Asymptotic properties of Z^n actions, Filippo Ceroccchi (CRM Ennio De Giorgi)
• Betti numbers of towers of covers of reflection groups, Mike Davis (Ohio State University) [slides]
• On hyperbolic groups whose boundaries are spheres, Ursula Hamenstädt (Universität Bonn)
• Partial survey on presentations and growth of profinite groups of arithmetic type, Bertrand Rémy (École Polytechnique)

1. Miklos Abert (Alfréd Rényi Institute of Mathematics)
2. Vanessa Alderete (UNAM)
3. Yago Antolin (Vanderbilt University)
4. Javier Aramayona (Universidad Autonoma de Madrid)
   
5. C.S. Aravinda (TIFR  Bangalore)
   
6. Goulnara Arzhantseva (Universität Wien)
   
7. Sebastian Baader (Universität Bern)
   
8. Uri Bader (Weizmann Institute)
   
9. Harry Hyungryul Baik (Universität Bonn)
   
10. Fathi Ben Aribi (Université de Paris 7)
11. Yves Benoist (Université Paris XI)
    
12. Ian Biringer (Boston College)
13. Michel Boileau (Université de Toulouse)
14. Dante Bonolis (ETHZ)
    
15. Khalid Bou-Rabee (City College, CUNY)
    
16. Henry Bradford (Oxford University)
17. Sabine Braun (Karlsruhe Institut of Technology)
18. Martin Bridson (Oxford University)
19. Marc Burger (ETHZ)
    
20. Claire Burrin (ETHZ)
    
21. Frank Calegari (University of Chicago)
    
22. Caterina Campagnolo (Université de Genève)
23. Michael Cantrell (University of Illinois at Chicago)
    
24. Ilaria Castellano (Università di Bari)
25. Filippo Cerocchi (CRM Ennio De Giorgi - Pisa)
26. Tal Cohen (Weizmann Institute)
27. Rémi Coulon (Université de Rennes)
28. Françoise Dal'Bo (Université de Rennes)
29. Kajal Das (Université de Paris XI)
30. Mike Davis (Ohio State University)
    
31. Carlos Alberto De la Cruz Mengual (ETHZ)
    
32. Jonas Deré (KU Leuven Kulak)
33. Cornelia Drutu (University of Oxford & Université de Lille)
34. Jan Dymara (University of Wroclaw)
35. Alexander Engel (Universität Regensburg)
36. Gianluca Faraco (Università di Bologna)
37. Michal Ferov (University of Southampton)
38. Steve Ferry (Rutgers University)
39. Vladimir Finkelshtein (University of Illinois at Chicago)
40. Elia Fioravanti (Scuola Normale di Pisa)
41. Federico Franceschini (Università di Pisa)
    
42. Dominik Francoeur (Université de Genève)
43. Stefan Friedl (Universität Regensburg)
    
44. Roberto Frigerio (Università di Pisa)
45. Florian Funke (Universität Bonn)
46. Damien Gaboriau (ENS Lyon)
    
47. Swiatoslaw Gal (University of Wroclaw)
48. Alejandra Garrido (Oxford University)
49. Ilya Gekhtman (Yale University)
50. Tsachik Gelander (Weizmann Institute)
51. Maxime Gheysens (EPFL)
52. Yair Glasner (Ben Gourion University of the Negev)
53. Gil Goffer (Weizmann Institute)
54. Daniel Groves (University of Illinois at Chicago)
55. Mark Hagen (University of Michigan)
    
56. Chris Hall (University of Wyoming)
    
57. Ursula Hamenstädt (Universität Bonn)
    
58. Tobias Hartnick (Technion, Haifa)
    
59. Gerritt Herrmann (Universität Regensburg)
60. Dominique Hulin (Université Paris XI)
61. Michael Hull (University of Illinois at Chicago)
62. Francesca Iezzi (Warwick University)
63. Alessandra Iozzi (ETHZ)
64. Holger Kammayer (Karlsruhe Institute of Technology)
65. Aditi Kar (Southampton University)
    
66. Dawid Kielak (Universität Bonn)
67. Ralf Köhl (Universität Giessen)
68. Emmanuel Kowalski (ETHZ)
69. Kirill Kuzmin (Università di Pisa)
70. Nir Lazarovich (ETHZ)
71. Ian Leary (University of Southampton)
72. Cyril Lecuire (Université de Toulouse)
73. Paul-Henry Leeman (Université de Genève)
74. Arie Levit (Weizmann Institute)
75. Gabi Link (Karlsruhe Institute of Technology)
76. Benny Löffel (ETHZ)
    
77. Wolfgang Lück (Hausdorff Institute Bonn)
78. Elia Manara (Università di Milano Bicocca)
79. Jason Manning (Cornell University)
80. Bruno Martelli (Università di Pisa)
81. Nicolas Matte Bon (ENS Paris)
82. Johanna Meumertzheim (Universität Regensburg)
83. Gabriele Mondello (Università di Roma La Sapienza)
84. Shahar Mozes (Hebrew University)
85. Amos Nevo (Technion, Haifa)
86. Nikolay Nikolov (Oxford University)
    
87. Andreas Ott (Universität Heidelberg)
88. Federico Pasini (Università di Milano Bicocca)
89. Corentin Perret-Gentil (ETHZ)
90. Bram Petri (Max Planck Institute of Mathematics -- Bonn)
91. Hester Pieter (Université de Genève)
92. Leonid Potyagailo (Université de Lille)
93. Beatrice Pozzetti (University of Warwick)
94. Jean Raimbault (Université de Toulouse)
95. Bertrand Rémy (École Polytechnique)
    
96. Stefano Riolo (Università di Pisa)
97. Lorenzo Ruffoni (Università di Bologna)
98. Michah Sageev (Technion, Haifa)
99. Alessio Savini (Università di Bologna)
    
100. Andrea Sambusetti (Università di Roma La Sapienza)
101. Roman Sauer (Karlsruhe Institute of Technology)
102. Brandon Seward (University of Michigan)
103. Damian Sawicki (Polish Academy of Sciences)
104. Alessandro Sisto (ETHZ)
105. Mentor Stafa (ETHZ)
106. Emily Stark (Tufts University)
107. Enrico Toffoli (Universität Regensburg)
108. Vera Tonic (University of Ryeka)
109. Stephan Tornier (ETHZ)
     
110. Federico Vigolo (Oxford University)
111. Karen Vogtmann (University of Warwick)
112. Wenyuan Yang (Pekin University)
113. Jianchu Wu (Soochow University)