Physical Mathematics of QFT, University if Massachusetts Amherst, July 20 - 24, 2026, notes

16th Southeastern Workshop in Lie Theory, University of Virginia, July 17 - 21, 2026.

Representation Theory, Geometry, and Mathematical Physics; in honor of  A. A. Kirillov's 90th birthday, Stony Brook University, May 26 - 31, 2026, recordings

WARTHOG, Cluster algebras and braid varieties, University of Oregon, August 18 - 22, 2025, notes

Conference on the Langlands program, Northeastern University, June 9 - 13, 2025, notes.

Categorification and Symplectic Duality, Northeastern University, June 3 - 7, 2025, notes.

XV Southeastern Lie Theory Workshop, College of Charleston, May 2 - 4, 2025.
Talk: Cohomological stability of quiver varieties, slides.

Representation Theory Days (in honor of George Lusztig), MIT, November 9 - 11, 2024, notes.

Quantum Groups and Representation Theory (On the occasion of Kailash Misra's 70th birthday), North Carolina State University, October 12 - 15, 2024.
Talk: Atomic decomposition of crystals via diagram automorphisms, slides 

WARTHOG, Coherent-constructible equivalences in local Geometric Langlands and Representation Theory, University of Oregon, July 22-26, 2024, notes.

Invited talk at the representation theory seminar at RIMS, Kyoto University, May 30, 2024.
Talk: Dynkin automorphisms of Gaudin algebras, notes

Ph.D. open lectures on the combinatorics of Hilbert schemes, University of Warsaw, participant, May 23-25, 2024, notes from the course.

Invited talk at the Hausel group seminar at IST Austria, November 2, 2023.
Talk: Dynkin automorphism actions on Gaudin algebras

XXIV International Workshop for Young Mathematicians, September 17 - 23, 2023.
Talk: Big algebras and Dynkin automorphisms, slides

Algebraic, Asymptotic and Enumerative Combinatorics, July 30 - August 4, 2023.

Quiver Representations, Quiver Varieties and Combinatorics, May 22 - 26, 2023, notes.

A conference for students ,,Oblicze”, May 5 - 7, 2023.
Talk: Jak skonstruować teorie kohomologii? (trans. How to construct a cohomology theory?), slides

A conference for students ,,Ogólnolopska Sesja Studentów Matematyki”, April 21 - 23, 2023.
Talk: Kompleksy Koszula i Čecha w algebrze przemiennej (trans. Koszul and Čech complexes in commutative algebra), slides

Explicit Algebraic Geometry, April 16 - 20, 2023, participant.

6th Workshop on Algebraic Designs, Hadamard Matrices and Quanta, Krakow, June 27 – July 2, 2022.

Polish conference for students ,,Oblicze”, May 13 - 15, 2022.
Talk: Skończone rezolwenty wolne (trans. Finite free resolutions), slides

Polish conference for students ,,Ogólnolopska Sesja Studentów Matematyki”, May 6 - 8, 2022.
Talk: Uzupelnienia pierścieni (trans. Ring completions), slides

Algebraic Topology for Amateurs, online, March 24, 2021.

Summer Conferences of the Tournament of Towns, August 1 - 11, 2019.

Hitchin fibration, Reading seminar on physical mathematics of QFT, Yale University, July 2026, notes

Mumford's construction of a family of PPAV, Reading seminar on cycles and matroids, Yale University, April 2026, notes

Double affine Hecke algebras, Learning seminar on affine Springer fibers, online, April 2026, notes

Categorification, Graduate students seminar, Yale University, March 2026, notes

Matroids: deletion, contraction, and excluded minors, Reading seminar on cycles and matroids, Yale University, February 2026, notes

Stabilization of Kac polynomials along root strings, Geometry, Symmetry and Physics seminar, Yale University, February 2026, notes

Modular forms, Graduate students seminar, Yale University, September 2025, notes

Category O, Arc spaces and vertex algebras learning seminar, Yale University, July 2025, notes

Vertex algebras, Arc spaces and vertex algebras learning seminar, Yale University, February 2025, notes

Cluster algebras, Graduate students seminar, Yale University, February 2025, notes

Drinfeld's compactifications, Bun_G seminar, Yale University, October 2024, notes

Gaudin algebras, Topics in representation theory class, Yale University, October 2024, notes

Fourier-Mukai transforms, Derived categories and GIT quotients seminar, Yale University, September 2024, notes

Group homology and cohomology, Graduate students seminar, Yale University, September 2024, notes

Introduction to D-modules, D-modules seminar, Jagiellonian University, April 2024, notes

Intersection homology, Algebraic and Differential Topology seminar, Jagiellonian University, March 2024, notes

Mumford-Tate groups, Algebraic Geometry seminar, Jagiellonian University, December 2023, notes

Introduction to reductive groups, Langlands program seminar, Jagiellonian University, December 2023, notes

Vertex algebras, Algebra seminar, Jagiellonian University, November 2023, notes

Symplectic structures on Lie algebras, Algebraic and Differential Topology seminar, Jagiellonian University, October 2023, notes

Representable functors and affine Grassmannians, Algebraic Geometry seminar, Jagiellonian University, May 2023, notes

Differentiable stacks, Algebraic and Differential Topology seminar, Jagiellonian University, April 2023, notes

Derivations, differentials, and separability, Algebraic Geometry seminar, Jagiellonian University, December 2022, notes

Kirillov algebras, Algebra seminar, Jagiellonian University, December 2022, notes