Recent and upcoming activities:
 27.07.21
Invited Speaker @ Algebra and Representation Theory Seminar, University of Cologne
 Postponed to 2021
Invited Speaker @ Algebraic Combinatorics in Cetraro
Past talks:
 Jul '21
Conference: IMPANGA 20 "Schubert Varieties", Banach Center, Poland
Charges via the affine Grassmannian Jul '21
Oberseminar Darstellungstheorie, University of Bonn
Charges via the affine Grassmannian, Slides Feb '21
NatSci Colloquium, Freiburg Institute for Advanced Studies
KazhdanLusztig polynomials: recent results and open questions Oct '20
Pure Maths Seminar, University of East Anglia, Norwich (UK)
Bases of intersection cohomology of Schubert varieties and KazhdanLusztig polynomials. Jul '20
RepNet Virtual Seminar, Online
Extending Schubert calculus to intersection cohomology, Slides Apr '20
ARTS  Algebra and Representation Theory Seminar, University of Rome "Tor Vergata" (online)
The quest for bases of the intersection cohomology of Schubert varieties Feb '20

Algebra Seminar, University of Sydney
phybrid bases of the Hecke algebra  Feb '20

Conference: New Connections in Representation Theory, Mooloolaba (Australia)
The quest for bases of the intersection cohomology of Schubert varieties, Slides  Jun '19

Seminar: Groupes, Representations et Geometrie, University Paris Diderot
Dyck partitions and the intersection cohomology of Schubert varieties  May '19
Conference: Forms, Flags, Graphs, and Beyond, University of Ottawa
Dyck partitions and the intersection cohomology of Schubert varieties Apr '19
Algebra Seminar, University of Florence
Moment graph and the combinatorics of KazhdanLusztig polynomials Nov '18
Workshop: Enveloping Algebras and Geometric Representation Theory, Oberwolfach (Germany)
Minimal reflections and the coefficient of q in KazhdanLusztig polynomials Sep '18
Conference: Theorie Geometrique des Representations, Besse (France)
Moment graphs, KazhdanLusztig polynomials and combinatorics May '18
Algebra Seminar, University of Oregon, Eugene (USA)
Moment graphs, KazhdanLusztig polynomials and combinatorics Apr '18
Group and Representation Theory Seminar, MSRI, Berkeley (USA)
Moment graphs, KazhdanLusztig polynomials and combinatorics., Notes of the talk Jul '17
Oberseminar: Algebra, Zahlentheorie und algebraische Geometrie, University of Freiburg (Germany)
Some consequences from Hodge theory in representation theory, Notes of the talk May '17
Quinto Incontro Combinatoria Sistemi di Radici (Fifth Meeting on Combinatorics of Root Systems), Cortona (Italy)
Some Applications of Hodge Theory in Representation Theory May '17
Seminario di Algebra, Geometria e Combinatorica, University of Pisa
Hodge theory in the Hecke algebra and in Representation Theory Apr '17
Pure Mathematics Seminar, University of Queensland, Brisbane (Australia)
Some Applications of Hodge Theory in Representation Theory Oct '16
Representation Theory Seminar, RIMS Kyoto (Japan)
The Hard Lefschetz Theorem in Positive Characteristic for Flag Varieties, , Notes of the talk Aug '16
Koszul Duality and Soergel's Conjecture Seminar, MPIM Bonn
Examples of Koszul duality Nov '15
Path Model Afternoon, MPIM Bonn
Littelmann's Path Model Aug '15
Summer School on Koszul Duality, Bad Driburg (Germany)
Perverse Sheaves on the Flag Varieties Feb '15
Seminar on mixed Hodge modules, MPIM Bonn
Introduction to Mixed Hodge Stuctures Apr '14
Lie Theory Seminar, University of Pisa
Localization of gmodules