Überblick

a) Organisation von Konferenzen
b) Plenare und 1-stündige Vorträge an Konferenzen von 2001 bis dato
c) Sektionsvorträge an Konferenzen
d) Frühere Konferenzen

a) Organisation von Konferenzen

• Organisation der GAGTA-Konferenzen (http://gagta.org/)
• Hauptorganisator der internationalen Konferenz "Geometric and Combinatorial Group Theory with Applications
  GAGTA-6", Heinrich-Heine-Universität Düsseldorf, 25. Juli-3. August 2012
  (http://reh.math.uni-duesseldorf.de/~gcgta/)
  Sponsoren: DFG, Gesellschaft von Freunden und Förderern der Heinrich-Heine-Universität, Mathematisches Institut
  der Heinrich-Heine-Universität Düsseldorf
• Organisator des Minisymposiums im Rahmen der DMV–Jahrestagung 2011 "Geometrische Gruppentheorie",
  Universität Köln, 19.-22. September 2011
• Mitglied des Scientific Committees der internationalen Konferenz "Geometric and Asymptotic Group Theory with Applications" (GAGTA-5), Manresa, Barcelona (Spanien), 11.-15. Juli 2011
  (http://www.epsem.upc.edu/~gagta5)
• Hauptorganisator des Minisymposiums im Rahmen der DMV–Jahrestagung "Combinatorial and geometric group theory",
  Universität Erlangen, 14.-19. September 2008
  (http://www.mi.uni-erlangen.de/~dmvadmin/dmv08/vortragprogramm/minisymposien.shtml)
• Hauptorganisator der internationalen Konferenz, "Combinatorial and Geometric Group Theory with Applications",
  Technische Universität Dortmund, 27.-31. August 2007
  Sponsoren: DAAD, DFG
  (http://www.mathematik.uni-dortmund.de/~gcgta)
• Coorganisator der Malt'sev-Tagung, Institut für Mathematik der SB RAS, Novosibirsk (Russland), 17.-19. November 1998
  (http://math.nsc.ru/conference/malmeet/index.htm)

Teilnahme an Konferenzen mit Vorträgen

b) Plenare und 1-stündige Vorträge an Konferenzen von 2001 bis dato

• Gliwice (Poland), September 9-13, 2019, Groups and their actions (http://mat.polsl.pl/groups/)
  Plenary talk: "Equations in acylindrically hyperbolic groups. Algebraic, verbal, and existential closedness
  of subgroups of groups"
  
• Seoul (Korea), July 16-20, 2018, Geometric and Asymptotic Group Theory with Application (GAGTA 2018) https://sites.google.com/view/gagta2018/home
  Plenary talk: "Equations in acylindrically hyperbolic groups and verbal closedness"
• Regensburg (Germany), Sept. 25-29, 2017, Manifolds and Groups
  http://www-app.uni-regensburg.de/Fakultaeten/MAT/sfb-higher-invariants/images/sfb_mag2017.pdf
• Novosibirsk (Russia), November 21-25, 2016, Mal’cev Meeting,
  http://math.nsc.ru/conference/malmeet/16/Main_e.htm
  Plenary talk: "From local to global conjugacy in relatively hyperbolic groups"
• New York (USA), June 13 – 17, 2016, Geometric and Asymptotic Group Theory with Applications (GAGTA-10),
  http://web.stevens.edu/algebraic/GAGTA2016/program.php
  Plenary talk: "From local to global conjugacy in relatively hyperbolic groups"
• Bedlewo (Poland), June 22-26, 2015, International conference „Groups and their Actions“, http://mat.polsl.pl/groups/
  Main Speaker
• Bonn (Germany) December 5, 2014, Geometric Group Theory in Bonn
  Plenary talk: An algorithm for finding a basis of the fixed point subgroup of an automorphism of a free group
• Poznan (Poland), September 17 – 19, 2014, German Mathematical Society (DMV) and Polish Mathematical Society (PTM), (http://dmv.ptm.org.pl (http://dmv.ptm.org.pl/37session.html)
  Talk: "Generalized presentations of groups, in particular of Aut(F )"
• Newcastle (QL, Australia), July 21 – 25, 2014, Geometric and Asymptotic Group Theory with Applications (GAGTA-8)
  Plenary talk: Infinite words and generalized presentations of groups versus classical combinatorial group theory
  
• New York (USA), May 28th – 31st, 2013, Internationale Konferenz "Geometric and Asymptotic Group Theory with Applications", (http://www.stevens.edu/algebraic/GAGTA/index.htm)
  Plenary talk: An efficient algorithm for computing a basis of the fixed point subgroup of an automorphism of a free group
  
• South Padre Island (USA), March 21st – 24th, 2013, Internationale Konferenz G3 (http://www.math.uiuc.edu/~mineyev/ggg/)
  1. Plenary talk: Introduction to train track
  2. Plenary talk: An efficient algorithm for computing the fixed point subgroup of an automorphism of a free group
  
• Barcelona-Bellaterra (CRM) (Spain), November 10th, 2012, Workshop for the International conference on automorphisms
  of free groups
  1-hour talk: A basis of the fixed point subgroup of an automorphism of a free group
  
• Düsseldorf (Germany) July 25th – August 3rd, 2012, Internationale Konferenz "Geometric and Combinatorial
  Group Theory with Applications" (GAGTA-6)
  Plenary talk: A basis of the fixed point subgroup of an automorphism of a free group
  
• Köln (Germany) September 19th – 22th, 2011, Minisymposium "Geometrische Gruppentheorie" in frames of the
  DMV-Jahrestagung 2011.
  1-hour talk: Generalized presentations of infinite groups, in particular of Aut(Fw)
  
• Manresa (Barcelona, Spain), July 11th - 15th, 2011, International conference "Geometric and Asymptotic Group Theory"
  Plenary talk: Some new residual properties of groups
  
• Omsk (Russia), August 16th - 22nd, 2009, International Workshop “New Algebra-Logical Methods in Solution for Systems
  of Equations in Algebraic Structures”
  (http://omskconf2009.oscsbras.ru/eng.program.html)
  1-hour talk: Conjugacy separability for subgroups of virtually free groups
  
• Barcelona (Spain), April 24th - 25th, 2009, 4th Barcelona Weekend in Group Theory.
  Invited talk: On endomorphisms of torsion-free hyperbolic groups
  
• Alagna Valsesia (Italy), December 14th - 20th, 2008, Makanin-Razborov Workshop
  (http://www.mas.ncl.ac.uk/~najd2/alagna/)
  1-hour talk: On the fundamental and the first homology groups of the Hawaiian Earrings and of Griffiths' space
  
• Düsseldorf (Germany), November 26th - 28th, 2008
  Workshop "Algebra, Geometry, Arithmetic, Dynamics Related to the Solvable Radical
  and Representations of Finite Groups"
  (http://www.math.uni-duesseldorf.de/~grunewald/Conf2008/nov2008.html)
  1-hour talk: On the fundamental and the first homology groups of the Hawaiian Earrings and of Griffiths' space
  
• Erlangen (Germany), September 14th - 19th, 2008, Minisymposium "Combinatorial and geometric group theory"
  in frames of the DMV–Jahrestagung
  1. 1-hour talk: A presentation of a subgroup of Fn × Fn with unsolvable membership problem
  2. 1-hour talk: On the fundamental and the first homology groups of the Hawaiian Earrings and of Griffiths' space
  
• Manreza, Barcelona (Spain), August 31th - September 4th, 2006; Geometric and asympthotic group theory with applications
  (http://www.epsem.upc.edu/~gagta/program_en.shtml)
  Plenary talk: On a Magnus property for some one-relator groups
  
• Piestany (Slovak), July 16 - 20, 2005, Workshop "Equations in Groups and Applications of Algebraic Methods
  in Computer Science and Cryptology"
  (http://www.geocities.com/slovakia conference/program.htm)
  1-hour talk: Some methods of detecting the hyperbolicity for one relator groups
  
• Novosibirsk (Russia), November 17-19, 2003, Mal’cev Meeting 03,
  (http://math.nsc.ru/conference/malmeet/03/Main.htm)
  (http://math.nsc.ru/conference/malmeet/03/Prog.rtf)
  Plenary talk: On Dehn functions of groups
  
• Novosibirsk (Russia), November 21–23, 2001, Mal’tsev Meeting 01, (http://math.nsc.ru/conference/malmeet/01/Prog win.htm)
  Plenary talk: On Magnus’ theorem for fundamental groups of compact surfaces

c) Sektionsvorträge an Konferenzen

• Tel Aviv, Bar Ilan University (Israel), Mai 26-30, 2019, Geometric and Asymptotic Group Theory with Application (GAGTA 2019)
  (http://u.math.biu.ac.il/~vishne/Conferences/GAGTA2019/program.html)
  Talk: Algebraically and verbally closed subgroups of groups: Equations in acylindrically hyperbolic groups
• Salzburg (Austria), September 11 – 15, 2017, 19th ÖMG Congress and Annual DMV Meeting,
  Minisymposion M2 Fractals and Wild Topology
  Talk: The automorphism group of the free group of infinite countable rank. A survey.
• Poznan (Poland), September 17 – 19, 2014, German Mathematical Society (DMV) and Polish Mathematical Society (PTM), (http://dmv.ptm.org.pl (http://dmv.ptm.org.pl/37session.html)
  Talk: Generalized presentations of groups, in particular of Aut(Fw)
• Braunschweig (Germany), May 21 – 24, 2013, Workshop "Questions, Algorithms, and Computations in Abstract Group Theory", (http://www.icm.tu-bs.de/ag_algebra/ws-qac/index.php)
  Talk: An efficient algorithm for computing the fixed point subgroup of an automorphism of a free group
  
• Braniewo (Poland), July, 24 – 25, 2010, "Weierstraß-Killing-Colloquium".
  (http://mat.ug.edu.pl/index.php?url=mod/article.php&id=356)
  Talk: On generalized conjugacy separability in the class of virtually free groups
  
• Novosibirsk (Russia), August, 24 – 28, 2009, Mal’tsev Meeting
  Talk: Conjugacy separability for subgroups of virtually free groups
  
• Göttingen (Germany), November, 17 – 21, 2008, Summer School 'Geometric inbariants of groups'
  (http://www.uni-math.gwdg.de/www/archiv.html)
  Talk: On the fundamental and the first homology groups of the Hawaiian Earrings and of Griffiths' space
  
• Oberwolfach (Germany), June 22 – 28, 2008, Workshop "Profinite and Asymptotic Group Theory"
  (http://www.mfo.de/programme/schedule/2008/)
  Talk: The conjugacy problem for some extensions of groups and a presentation of Mihailova’s subgroup
  
• Bendlewo (Poland), July, 1 – 7, 2007, International conference "Groups and their actions"
  (http://mat.polsl.pl/groups/index-2.html)
  Talk: Subgroups of small index in Aut(Fn) and Kazhdan's property (T)
  
• Marseille, CIRM (France), Februar, 26 – März 2, 2007, International conference "Groups 007"
  (http://www.latp.univ-mrs.fr/~coulbois/Groups007/index.html)
  Talk: Subgroups of small index in Aut(Fn) and Kazhdan's property (T)
  
• Novosibirsk (Russia), November, 15 – 17, 2005, Maltsev Meeting 05.
  (http://www.math.nsc.ru/conference/malmeet/05/Main_e.htm)
  (http://www.math.nsc.ru/conference/malmeet/05/Main.htm)
  Talk: On the generalized Whitehead problem for hyperbolic groups
  
• Barcelona (Spain), Juni 28 – Juli 2, 2005,"Barcelona Conference on Geometric Group Theory".
  Talk: Endomorphisms of hyperbolic groups
  
• Mainz (Germany), June 16 – 19, 2005; 2nd Joint Meetring of AMS, DMV, ÖMG
  (http://www.mathematik.uni-mainz.de/mainz2005/programm/CP.pdf)
  Two Talks:
  1) The conjugacy problem in free-by-hyperbolic groups
  2) On the generalized Whitehead problem for hyperbolic groups
  
• Bendlewo (Poland), April 18 – 24, 2004, Conference on "Geometric group theory"
  (http://www.math.uni.wroc.pl/ggt/geom04)
  Talk: Mean Dehn functions of groups
  
• Sankt Petersburg (Russia), September 11 – 22, 2002,
  "International Algebraic Conference dedicated to the memory of Z.I. Borevich"
  (http://www.umsolver.com/proceedings.htm)
  Talk: An analogue of a theorem of Magnus for fundamental groups of surfaces
  
• Sevilla (Spain), June 18 – 21, 2003, First Joint Meeting AMS/RSME
  (http://www.ma4.upc.edu/~burillo/sevilla.html)
  Talk: An analogue of a Magnus' theorem for surface groups an some other one-relator groups
  
• Ustron (Poland), June 10 – 14, 2003, International Conference "Groups and Group Rings"
  (http://mat.polsl.pl/groups/starekonf/a2.html)
  
• Gaeta (Italy), June 1 – 6, 2003,
  International Conference "Geometric, Combinatorial and Dynamical Aspects of Infinite Groups"

d) Frühere Konferenzen

• Cortona (Italy), 2002
• Hattingen (Germany), 2001
• Haifa (Israel), 2000
• Warwick (England), 1999
• Southampton (England), 1997
• Anogia, Crete (Greece), 1996;
• L’vov (Ukraine), 1987;
• Gomel (Belorussia), 1986
• Krasnoyarsk (Russia), August 23 – 28, 1993,
  "The IIIrd International Conference on Algebra"
  Plenary talk: Finitely generated groups with the M. Hall property