Assistant professor
Chair of Mathematical Physics
Faculty of Mathematics
University of Białystok
Research interests
My research interests are related to various aspects of mathematical physics with emphasis on topics close to problems of functional analysis and operator algebras:
- infinite dimensional geometry with emphasis on Poisson geometry on Banach manifolds, Banach Lie groupoids and algebroids
- integrable systems both in quantum and classical setting, also in relation to quantum optics
- factorization method in discrete version
- in particular: geometry and integrable systems on the restricted Grassmannian
Selected publications
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Poisson structure on predual of Banach Lie algebroid, arXiv:2505.13351 (with G. Jakimowicz)
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Nijenhuis operators on Banach homogeneous spaces, arXiv:2410.13557 - to appear in Rendiconti Lincei. Matematica e Applicazioni (with G. Larotonda and A.B. Tumpach)
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Geometry of integrable systems related to the restricted Grassmannian, SIGMA 20 (2024), 104. DOI: 10.3842/SIGMA.2024.104 (with A.B. Tumpach)
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Banach Lie groupoid of partial isometries over restricted Grassmannian, Anal. Math. Phys. 15, 27 (2025). DOI: 10.1007/s13324-025-01028-y (with G. Jakimowicz, A. Sliżewska)
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Regulated curves on a Banach manifold and singularities of endpoint map. I. Banach manifold structure, Diff. Geom. Appl. 99, 102245 (2025) DOI: 10.1016/j.difgeo.2025.102245 Elsevier Share Link (with F. Pelletier)
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Hierarchy of Hamilton equations on Banach Lie-Poisson spaces related to restricted Grassmannian, J. Funct. Anal. 258 (2010), no. 10, 3266 - 3294. DOI: 10.1016/j.jfa.2010.01.019 (with A. Odzijewicz)
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Queer Poisson brackets, J. Geom. Phys. 132 (2018), 358-362. DOI: 10.1016/j.geomphys.2018.06.013 (with D. Beltita, A.-B. Tumpach)
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Banach-Lie groupoids and generalized inversion, J. Funct. Anal. 276 (2019), no. 5, 1528-1574. DOI: 10.1016/j.jfa.2018.12.002 (with D. Beltita, G. Jakimowicz, F. Pelletier)
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Factorization method for second order functional equations, J. Comput. Appl. Math. 176 (2005), no. 2, 331-355. DOI: 10.1016/j.cam.2004.07.023 (with A. Odzijewicz)
Workshop on Geometric Methods in Physics
For the better part of this century I've been a secretary of Workshop on Geometric Methods in Physics — annual international conference in the field of mathematical physics and mathematics organized in Białowieża or Białystok. Head to the webpage to learn more or to register. You can also visit the Facebook page: facebook.com/wgmp.bialowieza. The event is accompaigned by School on Geometry and Physics intended for young researchers and graduate students. Usually it takes place in the week preceding the Workshop and consists of several 3h courses by leading experts in mathematical physics.
Projects
I am part of a bilateral Polish-Austrian research project Banach Poisson-Lie groups and integrable systems together with Alice Barbara Tumpach (Mozart call). It is a 3 years project, which started Autumn 2020. During this time we organized several research group meetings and a school on infinite-dimensional geometry in Vienna.
Thematic Programme at Schrödinger Institute
I'm one of the organizers of the thematic programme at ESI. The programme takes place Jan. 13, 2025 — Feb. 14, 2025 at the Erwin Schrödinger International Institute for Mathematics and Physics (ESI) in Vienna.
The aim of the project is to reinforce the collaboration between scientists from austrian research institutions and international institutions around the topic of infinite dimensional geometry. Direct applications of the theoretical aspects of infinite dimensional geometry to numerical schemes for solving partial differential equations coming from hydrodynamics, as well as medical applications of shape analysis are part of the program.
The programme will last five 5 weeks, each devoted to different topic ranging from abstract theoretical questions to very concrete applications (e.g. medical).
Each week three mini-courses and four keynote speakers are envisioned. Short talks from the participants will complete the programme.
- Week 1: Geometric structures and infinite-dimensional manifolds
- Week 2: Dynamical systems and infinite-dimensional manifolds
- Week 3: Homeomorphisms of S^1 and their extensions
- Week 4: Shape Analysis and Geometry
- Week 5: Shape Analysis and Medical Applications
Details can be found at ESI webpage. Some photos from the first three weeks are available here: tomaszg.pl/foto/25esi.
Other stuff
Programming
You can find some of my code written as a hobby on Gitlab (there are also repositories on Github but they are not kept up to date due to the change in ownership of that website). It hosts among others my personal fork of Music on Console featuring new features and a C++ rewrite of SGallery - a generator of static photo gallery.
There is also a generator for stats for Opencaching to be found at tomaszg.pl/geo (with source also hosted on Gitlab).
Photography
My photography webpage is tomaszg.pl. There are major subsections devoted to music photography (mostly folk and sea shanties genre).
