Prof. Dr. Moritz Weber(Juniorprofessor for Mathematics)Saarland University Faculty of Mathematics Postbox 151150 D66041 Saarbruecken Germany room 310, building E 2 4 phone: +496813022556 mail: weber [at] math.unisb.de office hours: by arrangement Secretary: Karin Mißler room 418, phone +496813023432 Supported by: 
Moritz Weber, Stefan Jung, Laura Maaßen, Daniel Gromada, Simon Schmidt, Alexander Mang  May 2019. PhD students 
Table of contents/ quick links
NewsPublications and research interest
PI in the SFBTRR 195 Symbolic Tools in Mathematics and their Applications
Editor of Analysis Mathematica for the area functional analysis, operator algebras and quantum groups
PhD students and supervision of graduation theses
Third party funding
Distinctions and awards
Teaching
Conferences
Short CV (one page summary, PDF file, May 2020)
My articles on Google Scholar or on Math Sci Net or on arXiv
News
[15 May 2020] 

From October 2020 to June 2021, I am in charge of the 24th Internetseminar (ISem24), together with Christian Budde, Xin Li and Christian Voigt. Since 1997, the Internetseminar has taken place every year, dedicated to some specific topic in functional analysis and evolution equations. In ISem24, we will introduce to C*algebras and dynamics; we expect several hundreds of participants worldwide. Looking forward to it! 
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[4 May 2020] 

I am now part of the Heisenberg programme of the German Research Foundation. My own position will be fully funded from early 2021 for five years. I am very happy about that, besides being also mathematically a Heisenberg descendant. Thank you very much! 
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[18 Jul 2019]  From 23 September to 25 October 2019, Christian Voigt, Senior Lecturer at University of Glasgow will visit our research group for working with me on quantum groups. We are looking forward to it! 
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[18 Jul 2019] 

From 1 June to 17 August 2019, Chase Vogeli, Bachelor's student at MIT, Boston, is visiting our research group with a RISE internship. He is supervised by Daniel Gromada and myself. Welcome! 
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[10 Jan 2019] 

Thank you for the invitation to the New Years Reception of the Federal President of Germany and Mrs Büdenbender, 10 January 2019 in the castle Bellevue, Berlin! 
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[8 Jan 2019] 

Since January 2019, I am an editor of Analysis Mathematica for the area functional analysis, operator algebras and quantum groups. Submissions welcome! 
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[13 Nov 2018] 
The mobility support for the project Quantum groups and quantum probability has been approved by the DAAD/Procope for 20192020  Thank you very much! 
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[5 Mar 2018] 

Alexander Mang receives an award (8 week stay at the Max Planck Institute for Mathematics in Bonn) at the students conference of the DMV (German Mathematical Society), 45 March 2018 in Paderborn for his talk on his Bachelor's thesis Neutral pair partition categories, written under my supervision. 
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[13 Mar 2017]  I am very happy having received the Landespreis Hochschullehre 2016 (federal state teaching award) awarded by the first minister of Saarland for the preparatory math courses for refugees for studies in MINTsubjects! 
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Publications
To the list of publicationsPhD students and supervision of graduate theses
 Alexander Mang  PhD student, since May 2019
 Laura Maaßen  PhD student, together with Gerhard Hiß, RWTH Aachen, since fall 2017
 Simon Schmidt  PhD thesis, Quantum automorphism groups of finite graphs, 2020
 Daniel Gromada  PhD student, since July 2017
 Michael Kreisel (U Wuppertal)  Master's student, together with Balint Farkas, since 2020
 Marc Hermes  Master's student, together with Gert Smolka, since 2020
 Julien Schanz  Master's student, since 2020
 Johannes Becker (TU Darmstadt)  Master's student, together with Burkhard Kümmerer, since 2020
 Matias Klimpel  Bachelor's student, since 2020
 Nicolas Faroß  Bachelor's thesis, Towards a concrete model for the quantum permutation group, 2020
 Alexander Wendel  Bachelor's thesis, Hochschild cohomology of free easy quantum groups, 2020
 Friedrich Günther  Bachelor's thesis, Unitary easy groups, 2020
 Stefan Jung  PhD thesis Easy quantum groups: Linear independencies, models and partition quantum spaces, 2019
 Vincent Preiß  Master's thesis, Intertwiner spaces of quantum automorphism groups of simple graphs with four vertices, 2019
in joint supervision with Simon Schmidt, supported by Daniel Gromada  Andreas Widenka  Master's thesis, Quantum versions of metric spaces and their symmetries, 2019
 Luca Junk  Bachelor's thesis, Quantum automorphism groups of graphs and coherent algebras, 2019
in joint supervision with Simon Schmidt
Publication: to appear in Archiv der Mathematik, see arxiv  Alexander Mang  Masters's thesis: Classification of all nonhyperoctahedral categories of twocolored partitions, 2019
Publications: See arXiv (Part I) and arXiv (Part II)  Mirko Stappert  Bachelor's thesis: Noncommutative geometry and the Quantum Hall Effect, 2019
 Julien Schanz  Bachelor's thesis: Computing quantum symmetries of graphs, 2019
in joint supervision with Simon Schmidt
Publication: see arXiv  Martin Michajlow  Bachelor's thesis: Hilbertsudokus, 2018
 Mang Zhao  Bachelor's thesis: Combinatorial models of frieze patterns, 2018
Publication: Rev. Un. Mat. Argentina, see also on arXiv
 Alexander Mang  Bachelor's thesis: Neutral pair partitions, 2017
awarded on the student's conference of the annual meeting of the German Mathematical Society
Publications: to appear in Ramanujan J. (Part I), see also on arXiv: Part I, Part II
 Julien Sazadaly  Master's thesis Memoir M2: Quantum isometries of some spherical algebras,
Paris Diderot/Paris VII, 2017  Simon Schmidt  Master's thesis: Quantum automorphisms of graph C*algebras, 2017
Publication: Can. Math. Bull., see also on arXiv  Ricardo Schnur  Master' thesis: The Connes embedding property for free orthogonal quantum groups, 2017
 Andrei Miu  Master's thesis Memoir M2: Weingarten calculus for orthogonal compact quantum groups,
Paris Diderot/Paris VII, 2015  Jonas Wahl  Master's thesis: operator algebraic properties of free wreath products, 2014
in joint supervision with Roland Speicher
Publication: Ill. J. Math., see also on arXiv  Dominik Urig  Bachelor's thesis: Der Satz von HahnBanach, 2014
in joint supervision with Roland Speicher  Peter Schuhmacher  Bachlor's thesis: Entropie in Quantenkanälen, 2014
in joint supervision with Roland Speicher  Stefan Jung  Bachelor's thesis: C*algebraische Darstellungen der Quantenpermutationsgruppe, 2014
 Pascal Bauer  Bachelor's thesis: Das BanachTarskiParadoxon und Amenabilität von Gruppen, 2013
in joint supervision with Roland Speicher
Running third party funding
 Member of the Heisenberg programme of the German Research Foundation since April 2020. Begin of the funding
in April 2021 the latest.  Principal Investigator in the SFBTRR 195 Symbolic Tools in Mathematics and their Applications
with the project Computational classification of orthogonal quantum groups,
one PhD position, 20172020.  Support (Sachbeihilfe) of the German Research Foundation (DFG)
Quantum automorphism groups of graphs,
one PhD position, 20172020.  Mobility support for the project Quantum groups and quantum probability by the
DAAD/Procope, 20192020.
Distinctions and awards
 Member of the Heisenberg programme of the German Research Foundation since April 2020.
 Invitation to the New Years Reception of the Federal President of Germany and Mrs Büdenbender,
10 January 2019 in the castle Bellevue, Berlin.  Landespreis Hochschullehre 2016 (federal state teaching award)
awarded by the first minister of Saarland
for the Preparatory math courses for refugees for studies in MINT subjects
See also the radio interview (in German) and the article in the online magazine of Saarland University. 
Best teaching award (faculty of mathematics) in summer term 2015, for the
lecture on (Real) Analysis I 
Honorary Research Associate of Glasgow University, UK, 2015

Best teaching award (faculty of mathematics) in winter term 2013/2014, for the
lecture on functional analysis 
Oberwolfach Leibniz Graduate Student for the workshops
C*Algebras (2010) and
C*Algebras, Dynamics, and Classification (2012) 
scholarship by the Graduiertenkolleg Analytische Topologie und Metageometrie
from 2008 until 2010 
scholarship by the Studienstiftung des deutschen Volkes from 2002 until 2006
Teaching
Winter term 2020/202124th Internetseminar on C*algebras and dynamics
Proseminar Beispiele geometrischer Strukturen
Summer term 2020
Block seminar on category theory
Winter term 2019/2020
Ktheory of C*Algebras
Seminar on graph theory
Summer term 2019
Set theory and forcing
Winter term 2018/2019
Reading seminar on quantum groups and Hopf algebras
22nd Internetseminar on Ergodic Theorems
Summer term 2018
Operator algebras (Functional analysis II)
Contribution to Bachelor plus MINT (3 July)
Winter term 2017/2018
Functional analysis
Students seminar on The Millenium Prize Problems
Summer term 2017
Students seminar on operators on Hilbert spaces
Summer term 2016
Analysis II
Reading seminar on quantum groups
Preparatory math courses for refugees for studies in MINT subjects
Winter term 2015/2016
Operator algebras (Functional analysis II) (Lecturer)
Preparatory math courses for refugees for studies in MINT subjects (Lecturer, Coordinator)
Summer term 2015
(Real) Analysis I (Lecturer) (this term's teaching award from the students of faculty)
Seminar on operator algebras and free probability (Lecturer, together with Roland Speicher)
Summer term 2014
Operator algebras (Lecturer, together with Roland Speicher)
Winter term 2013/2014
Functional analysis (Lecturer) (this term's teaching award from the students of the faculty)
Seminar on operators on Hilbert spaces (Assistant)
Summer term 2013
Operator algebras (Assistant)
Seminar on von Neumann algebras (Assistant)
Winter term 2012/2013
Mathematics for biologists and chemists (Lecturer)
Functional analysis (Assistant)
Seminar on free probability theory (Assistant)
Summer term 2012
C*algebras and Ktheory (Lecturer)
Random matrices (Assistant)
Winter term 2011/2012
C*algebras (Lecturer)
Summer term 2011
(Real) analysis II (Assistant)
Seminar on von Neumann algebras (Assistant)
Winter term 2010/2011
(Real) analysis I (Assistant)
Conferences
2021
North Atlantic Noncommutative Geometry Seminar
Jan 20, 2021
Talk: Quantum symmetries of graphs
Slides, Recording

GAG seminar (Groups, Analysis, Geometry)
William & Mary, USA
Oct 28, 2020
Talk: Quantum automorphism groups of finite graphs: a survey
Slides, PhD thesis Simon Schmidt 
Topological quantum groups, C*tensor categories, and subfactors
Texas A & M, USA
*** cancelled ***
(was: July 27  31, 2020)
Minicourse lecturer: Introduction to easy quantum groups and their classification  Virtual Noncommutative Analysis Weekly Seminar
July 29, 2020
Talk (virtual): Compact matrix quantum groups and their representation theory
Slides  Seminar on Lie Theory
Cordoba, Argentina
June 29, 2020
Talk (virtual): Classification of compact matrix quantum groups
Slides  ISem23  Evolutionary Equations, final workshop
(Online)
June 25, 2020
Talk (virtual): Dynamical systems and crossed products of C*algebras
Slides 
Free probability  on the occasion of Roland Speicher's 60th birthday
Saarbrücken, Germany
*** cancelled ***
(was: June 8  12, 2020)
Organizer, together with Michael Brannan, James Mingo, Jonathan Novak and DanVirgil Voiculescu 
Entangling Noncommutative Functional Analysis and Geometry of Banach Spaces
Centre International de Rencontres Mathematiques, Luminy
*** cancelled ***
(was: May 11  15, 2020)

Deligne categories and quantum groups
Aachen, Germany
*** cancelled ***
(was: March 30  April 3, 2020)
Organizer, together with Johannes Flake, Gerhard Hiss and Laura Maassen 
Seminaire theorie de Lie, geometrie et analyse (LieGA)
Metz, France
January 23, 2020
Talk: An introduction to quantum groups and quantum symmetries
2019

Oberwolfach Miniworkshop 1941a Operator algebraic quantum groups
Oberwolfach, Germany
October 6  12, 2019
Organizer, together with Michael Brannan, Martijn Caspers and Anna WysoczanskaKula 
DMVJahrestagung 2019, MiniSymposium Computeralgebra
Karlsruhe, Germany
2326 September, 2019
Talk: Representation categories of quantum groups and computational approaches 
3rd annual meeting SFBTRR 195
Saarbrücken, Germany
September 9  13, 2019
Talk: Quantum symmetries and computations 
Quantum groups and their analysis
UiO University of Oslo, Norway
Summer school: July 29  August 2, 2019
Workshop: August 5  9, 2019
Organizer, together with Kurusch EbrahimiFard and Makoto Yamashita  Oberseminar Mathematische Logik
University of Bonn, Germany
June 19, 2019
Talk: Forcing in operator algebras  A.RTSeminar (Algebra & Representation Theory)
RWTH Aachen, Germany
June 17, 2019
Talk: How to describe representation categories of some linear groups and some quantum groups 
Ergodic Theorems
Workshop of the 22nd Internetseminar (see also our local edition)
Bergische Universität Wuppertal, Germany
June 10  16, 2019
Participation as coordinator of project 13: Noncommutative ergodic theorems 
Journées Thématiques : Cohomology of compact quantum groups and related topics
Besancon, France
March 21  22, 2019
Talk: Unitary halfliberations 
New developments in free probability and applications
Centre de recherches mathematiques, Montreal, Canada
March 4  15, 2019
Talk: News from easy and noneasy quantum groups 
Retreat SFBTRR 195
Bad Münster am Stein, Germany
February 18  21, 2019

Séminaire Matrices et graphes aléatoires (MEGA)
Institut Henri Poincaré, Paris
February 8, 2019
Talk: Quantum symmetries of finite graphs and of noncommutative notions of independence 
Geometry Seminar
Dresden, Germany
January 15, 2019
Talk: Quantum symmetries of finite graphs
2018

Oberwolfach Workshop 1849 Free Probability Theory
Oberwolfach, Germany
December 3  7, 2018
Talk: Quantum groups by example 
Cohomology of quantum groups and quantum automorphism groups of finite graphs
Saarbrücken, Germany
October 8  12, 2018
Organizer, together with Simon Schmidt 
Second annual meeting of the DFG collaborative research center SFBTRR 195
Tübingen, Germany
September 24  28, 2018 
Quantum homogeneous spaces
International Centre for Mathematical Sciences, Edinburgh, UK
June 11  15, 2018
Talk: Quantum spaces arising from partitions of sets 
NCGOA 2018: C*algebras and Dynamics
Münster, Germany
May 14  19, 2018
Talk: Quantum symmetries of graph C*algebras (PDF) 
Oberwolfach Workshop 1819 Interactions between operator space theory
and quantum probability with applications to quantum information
Oberwolfach, Germany
May 6  12, 2018
Talk: Quantum automorphism groups of graphs 
50th Anniversary meeting of the North British Functional Analysis Seminar
Edinburgh, UK
April 12  14, 2018
Talk: Quantum groups by example 
Lancaster Analysis Days 2018
Lancaster, UK
April 10  11, 2018
Talk: C*algebras and quantum spaces arising from partitions (PDF)

GDMV 2018  Section Functional Analysis
Annual Meeting of the German Mathematical Society (DMV)
Paderborn, Germany
March 5  9, 2018
Talk: Quantum symmetry  basic idea and concrete examples 
Workshop tensor categories, Hopf algebras and quantum groups
supported by the SFBTRR 195
Marburg, Germany
January 22  26, 2018
Organizer, together with Istvan Heckenberger and Sonia Natale
2017

Introduction to computer algebra systems
Miniworkshop
Miniworkshop, part of the graduate programme of the SFBTRR 195
Saarbrücken, Germany
November 28  30, 2017
Organizer 
First annual meeting of the DFG collaborative research center SFBTRR 195
RWTH Aachen, Germany
September 25  28, 2017
Talk: Some computational problems when working on compact quantum groups 
Summer school on Mathematical aspects of quantum information
Institut des Etudes Scientiques de Cargese, Corsica
September 4  8, 2017
Lecture: Introduction to free probability
Slides: Lecture 1: Free Probability Lecture 2: Quantum Groups Lecture 3: Links  Part 1 2 3 4 
Joint Seminar on Algebra and Analysis
Hannover, Germany
July 6, 2017
Seminar talk: Quantum symmetry, C*algebras and combinatorics 
Operator algebras seminar
KU Leuven, Belgium
Feburary 10, 2017
Seminar talk: Quantum groups based on spatial partitions
2016

Analytic versus Combinatorial in Free Probability
BIRS workshop
Banff, Canada
December 4  December 9, 2016
Talk: Quantum groups versus combinatorics in free probability Video of the talk 
Compact Quantum Groups
Satellite event of the 7th European Congress of Mathematics (July 18  22, 2016, Berlin, Germany)
Alfried Krupp Wissenschaftskolleg Greifswald, Germany
July 11  15, 2016
Organizer, together with Uwe Franz, Malte Gerhold and Adam Skalski 
Quantum groups: geometry, representations, and beyond
Oslo, Norway
May 9  13, 2016
Talk: Quantum groups with partial commutation relations 
Micro workshop on SU_q(3)
Saarbrücken
Jan 18  22, 2016
Organizer
2015

Analysis seminar
Wroclaw, Poland
October 15, 2015
Seminar talk: From Woronowicz's TannakaKrein result to examples of combinatorial quantum groups 
Noncommutative Geometry seminar
IMPAN, Warsawa, Poland
October 12, 2015
Seminar talk: From Woronowicz's TannakaKrein result to examples of combinatorial quantum groups 
Operator algebras seminar
KU Leuven, Belgium
October 2, 2015
Seminar talk: From combinatorics to (easy) quantum groups and more 
George Boole Mathematical Sciences Conference
Theme 8: Quantum Probabilistic Symmetries & Quantized Boolean Algebras
Cork, Ireland
August 17  28, 2015
Talk: Unitary easy quantum groups 
Quantum Groups and Quantum Information Theory
Workshop funded by the Fields Institute, the London Mathematical Society, the ERC Advanced
Grant held by Roland Speicher, and the ERC Starting grant held by Matthias Christandl
(see also page 15 and 16 in the Fields report)
Herstmonceux, UK
July 13  17, 2015
Organizer, together with Benoit Collins, James Mingo, Ashley Montanaro and Maria Grazia Viola 
Oberwolfach Workshop 1524 Free Probability
Oberwolfach, Germany
June 7  13, 2015

Analysis seminar
Aberdeen, UK
March 30, 2015
Seminar talk: Quantum groups meet free probability 
Analysis and probability seminar
Lancaster, UK
March 25, 2015
Seminar talk: Quantum groups meet free probability 
Mathematical physics seminar
Cardiff, UK
March 19, 2015
Seminar talk: Quantum groups meet free probability 
Algebraic and Analytic Aspects of Quantum Levy Processes
(see also here)
Alfried Krupp Wissenschaftskolleg Greifswald, Germany
March 9  13, 2015
Talk: Easy quantum groups go unitary  how combinatorics provides an easy access to quantum groups 
Analysis seminar
Glasgow, UK
March 4, 2015
Seminar talk: Quantum groups meet free probability 
Lecture series on (easy) quantum groups
Lecturer for eight lectures on quantum groups
IMSc Chennai, India
January 5  24, 2015
Playlist of the lectures on YouTube
Lecture Notes of the Chennai lectures (published in 2017)
2014

Free Probability and Random Matrices
Bielefeld, Germany
September 22  25, 2014
Talk: Quantum Groups in Free Probability 
IWOTA 2014
International Workshop on Operator Theory and its Applications
yearly conference, this time held in Amsterdam, Netherlands
July 14  18, 2014
Organizer of the Special Session on Free probability and operator theory,
together with Serban Belinschi and Roland Speicher
 Quantum Symmetries in Free Probability
Miniworkshop on easy quantum groups and other symmetries in free probability
Saarbrücken, Germany
March 31  April 4, 2014
Organizer, together with Roland Speicher
Talk: Partitions and quantum groups
2013

Masterclass on Free Probability and Operator Algebras
Münster, Germany
September 2  6, 2013
Organizer, together with Nicolai Stammeier
Lecture: Easy quantum groups 
Focus Program on Noncommutative Distributions in Free Probability Theory
Focus program by the Fields Institute, Toronto, Canada
July 2013
Talk: Partitions and quantum groups
see also the video archive of the Fields Institute
Lecture (in the interworkshop program): Quantum groups and their relation with free probability
see also the video archive of the Fields Institute 
Operator algebras seminar
KU Leuven, Belgium
March 15, 2013
Seminar talk: Easy quantum groups  a combinatorial class of quantum groups 
PLLUS Workshop
Meeting of the probability groups of four universities:
Technische Universität Kaiserslautern, University of Luxembourg,
Universite de Lorraine, Universität des Saarlandes
third edition held in Saarbrücken
Febr 21  22, 2013
Local organizer, together with Roland Speicher
2012

Arbre de Noel
Annual Christmas Conference of the NonCommutative Geometry GDR
Universite de Lorraine, Metz, France
December 6  8, 2012
Talk: Easy quantum groups  a combinatorial class of quantum groups 
Séminaire d'analyse fonctionelle
Besançon, France
27 November, 2012
Seminar talk: Easy quantum groups  a combinatorial class of quantum groups 
Oberwolfach Workshop 1244
C*Algebras, Dynamics, and Classification
Oberwolfach, Germany
October 28  November 3, 2012
Talk: The classification of easy quantum groups is difficult 
Minisymposium on Free Probability and Random Matrices
(part of the DMV Annual Meeting 2012)
Annual Meeting of the German Mathematical Society
Saarbrücken, Germany
September 17  20, 2012
Local organizer, together with Roland Speicher
Talk (Section Functional analysis): C*algebras generated by isometries with twisted commutation relations 
Canadian Operator Symposium 2012
Conference at Queen's University, Kingston, Canada
May 21  25, 2012
Talk: C*algebras generated by isometries with twisted commutation relations 
Masterclass on quantum groups
University of Copenhagen
March 5  9, 2012
Talk: On the classification of easy quantum groups 
PLLUS Workshop
Meeting of the probability groups of four universities:
Technische Universität Kaiserslautern, University of Luxembourg,
University Nancy 1, Universität des Saarlandes
second edition held in Luxemburg
March 1  2, 2012
2011

Noncommutative harmonic analysis
14th Workshop at Bedlewo, Poland
Sept 25  Oct 1, 2011
Talk: Easy quantum groups (joint with Roland Speicher) 
PLLUS Workshop
Meeting of the probability groups of four universities:
Technische Universität Kaiserslautern, University of Luxembourg,
University Nancy 1, Universität des Saarlandes
first edition held in Kaiserslautern
Febr 10  11, 2011 
Bialgebras in Free Probability
Program at Erwin Schrödinger Institute, Vienna
Febr 1  Apr 22, 2011
2010

Oberwolfach Workshop 1010
C*Algebras
Oberwolfach, Germany
March 7  13, 2010
Reporter (for the Oberwolfach Report 13/2010)
2009

Masterclass on the classification of C*algebras
University of Copenhagen
November 16  27, 2009
Talk: Twists of isometries 
Focused semester on KKtheory and its applications
Münster, Germany
May 4  July 24, 2009
Talk: Twists of isometries
updated: 20 January 2021 Moritz Weber  Impressum 