2013 
February 17-March 2, 2013,
 
Bandung/Indonesia
research  visit  to ITB, collaboration with 
Indah Wijayanti and Intan Muchtadi-Alamsyah
February 20: ITB weakly algebra seminar: 
 
''Stable equivalences of Morita type and Auslander-Reiten conjecture''
February 23: ITB once in a year algebra conference in Sawunggaling:
 
''Yoshino's approach to degenerations seen categorically''
February 25:
ITB monthly mathematics seminar
 
''Completions and Isomorphism Type: Eighty Years of Algebra''
see  here  the beamer presentation 
 
February 27: ITB weakly algebra seminar
 
''Singular equivalences of Morita type''
April 4, 2013,
 Magdeburg, Germany
Festkolloquium zu Ehren von Prof. Dr. Wolfgang Willems
 
participation cancelled due to illness
October 1, 2013,
 Strasbourg
séminaire d'algèbre et de topologie 
talk 
 'foncteurs polynomiaux de degré premier'. 
November 7-November 9, 2013,
 Bielefeld, Germany
workshop ''polynomial representations''; 
talk  'polynomial functors of prime degree'. 
November 14, 2013,
 Murcia, Espagne
thesis of Estefania Andreu Juan 
Décembre 12, 2013,
 Nantes
séminaire topologie et algèbre 
exposé  'Un théorème de Noether-Deuring pour des catégories dérivées'. 
 2014 
Janvier 9, 2014,
 Paris 13
séminaire topologie et algèbre 
exposé
 'foncteurs polynomiaux de degré premier'. 
Avril 6-11, 2014,
 Murcia/Espagne
collaboration avec Manolo Saorin 
talk
 Polynomial functors of prime degree. 
June 30-July 4, 2014,
 Bilbao, Spain
First Joint International  Meeting  RSME-SCM-SEMA-SIMAI-UMI
talk
 Batalin-Vilkovisky structure on the Hochschild cohomology of Frobenius algebraas. 
September 13-September 15, 2014,
 Osaka City University, Japan
 47th Symposion 
on Ring Theory and Representation Theory
invited speaker:
Lecture 1: 
 Degeneration for triangulated categories.
 
Lecture 2: 
 Batalin-Vilkovisky structure on the Hochschild cohomology of Frobenius algebras. 
September 16, 2014,
 Nagoya University, Japan
Seminar in Representation theory. 
Lecture:  
 
Stable Equivalences of Morita type and 
tensor products. 
October 25-November 6, 2014,
 Shanghai/Beijing, China
visit Guodong Zhou and Yuming Liu
 East China Normal University 
October 27: Algebra seminar. Lecture:  Polynomial functors of prime degree.
 Beijing Normal University: 
November 1-2: 
Mini-workshop on representation theory.
Lecture:  
Geometrical degeneration in triangulated categories. 
November 7: In the seminar: Lecture on  'derived and stable categories of orders'
 Capital Normal University: 
November 3: Algebra seminar:
Lecture on  'a Noether-Deuring theorem for derived categories'
 2015 
September 1-September 4, 2015,
 Lausanne/Switzerland
Functorial Methods in Representation Theory  Meeting  to honor Serge Bouc's 60th birthday 
talk
 to be announced.