together with Seminar of Section of Differential Equations at MIMUW


The purpose of the seminar is to share the newest results in the calculus of variations and the theory of partial differential equations of nonstandard growth and related functional analysis. Our special attention is focused on studies steming from the research on problems exposing so-called (p,q)-growth including not only variable exponent, double phase, and Orlicz growth together with their anisotropic versions, but all falling into the realm of inhomogeneous and fully anisotropic Musielak-Orlicz growth.


Due to the CoVid-19 pandemic the seminar will be run on-line via Zoom. The link to each meeting will be sent in a newsletter of the seminar and it will appear here half an hour before the meeting. The talks take place on Mondays at

14:00 & 15:00 (Polish time = CET)
i.e. 13:00 & 14:00 in UK, 15:00 & 16:00 in Finland, and 22:00 & 23:00 in Korea.
Everybody interested is cordially welcome to participate. If you want to have your e-mail address included in the mailing list of the seminar, please contact Iwona Chlebicka (i [dot] chlebicka [at] mimuw [dot] edu [dot] pl).


Not available now.



14:00 -- Lars Diening (University of Bielefeld), Elliptic equations with degenerate weights, [abstract], about a joint project with Anna Balci, Raffaella Giova, and Antonella Passarelli di Napoli [BDGP], [presentation]

15:00 -- Cristiana De Filippis (University of Turin), Regularity for non-homogeneous systems, [abstract], about projects on her own [DF1] , joint with Giuseppe Mingione [DFM1], [DFM2] , and with Iwona Chlebicka and Lukas Koch [CDFK], [presentation]


14:00 -- Sebastian Schwarzacher (Charles University, Prague), A variational approach to fluid-structure interactions [abstract], about a joint project with Barbora Benešová and Malte Kampschulte, [presentation]

15:00 -- Lorenzo Brasco (University of Ferrara), Regularity issues for orthotropic functionals, [abstract], about joint projects with Pierre Bousquet, [presentation]


14:00 -- Peter Hästö (University of Turku), Orlicz spaces and generalized Orlicz spaces, [abstract], [presentation]

15:00 -- Jihoon Ok (Sogang University), Maximal regularity for local minimizers of non-autonomous functionals, [abstract], about a joint project with Peter Hästö [HO], [presentation]


14:00 -- Sun-Sig Byun (Seoul National University), Gradient estimates of very weak solutions to nonlinear equations with nonstandard growth, [abstract], [presentation]

15:00 -- Anna Kh. Balci (University of Bielefeld), Regularity VS Lavrentiev gap: borderline case of double-phase potential model and related Musielak-Orlicz function classes, [abstract], about a joint project with Mikhail Surnachev [BS], [presentation]


14:00 -- Mathias Schäffner (Technische Universität Dortmund), Regularity for non-uniformly elliptic equations, [abstract], about a joint projects with Peter Bella [BS1]-[BS2] and Jonas Hirsch [HS], [presentation]

15:00 -- Petteri Harjulehto (University of Turku), Unbounded supersolutions with generalized Orlicz growth, [abstract], about a joint project with Allami Benyaiche, Peter Hästö, and Arttu Karppinen [BHHK], [presentation]


14:00 -- Andrea Cianchi (University of Florence), Nonstandard symmetric gradient Sobolev spaces, [abstract], about a joint project with Dominic Breit [BC], [presentation]

15:00 -- Anna Zatorska-Goldstein (University of Warsaw), Potential estimates for solutions of nonstandard growth measure data problems, [abstract], about a joint project with Iwona Chlebicka and Flavia Giannetti [CGZG], [presentation]


14:00 -- Giuseppe Mingione (University of Parma), Nonautonomous functionals and regularity of minima, [abstract], about joint projects with Cristiana De Filippis

15:00 -- Lukas Koch (University of Oxford), Global higher integrability for minimisers of convex functionals with (p,q)-growth, [abstract], about [K], [presentation]


14:00 -- Franz Gmeineder (University of Bonn), A-quasiconvexity and regularity [abstract], about a joint project with Sergio Conti [CG], [presentation]

15:00 -- David Cruz-Uribe (University of Alabama), Bounded weak solutions to elliptic PDE with data in Orlicz spaces, [abstract], about a joint project with Scott Rodney, [presentation]

* 30.11.2020 *

14:00 -- Atsushi Tachikawa (Tokyo University of Science), Boundary regularity of minimizers of double phase functionals [abstract], about [T]

15:00 -- Flavia Giannetti (University of Naples Federico II), A modular Poincaré inequality, [abstract], about a joint project with Alberto Fiorenza [FG]


14:00 -- Angela Alberico (Institute for Applied Mathematics (IAC) “M. Picone” CNR), Fractional Orlicz-Sobolev spaces, [abstract], about a joint project with Andrea Cianchi, Lubos Pick and Lenka Slavíkova

15:00 -- Jan Burczak (University of Leipzig), Non-Newtonian fluids. From ketchup to convex integration, [abstract], about a joint project with with Stefano Modena and László Székelyhidi jr [BMS]


14:00 -- Vít Musil (Masaryk University, Brno), TBA

15:00 -- Agnieszka Świerczewska-Gwiazda (University of Warsaw), TBA


14:00 -- Christoph Scheven (Universität Duisburg-Essen), A variational approach to doubly nonlinear equations with nonstandard growth [abstract], about joint projects with Verena Bögelein, Frank Duzaar, Paolo Marcellini [BDMS]

15:00 -- Erika Maringová (Vienna University of Technology), TBA


Christmas break!


14:00 -- Jan Kristensen (University of Oxford), TBA

15:00 -- Yumi Cho (Seoul National University), TBA


14:00 -- Dominic Breit (Heriot-Watt University), TBA

15:00 -- Karthik Adimurthi (Tata Institute of Fundamental Research, Centre for Applicable Mathematics, Bangalore), TBA


All suggestions welcome at `i [dot] chlebicka [at] mimuw [dot] edu [dot] pl'

IC is a PI of (Polish) National Science Centre Grant Sonata Bis 2019/34/E/ST1/00120 ‘Measure data problems’ (2020-2025).
The objectives of the project include studies on existence and regularity properties of very weak solutions to problems with nonstandard growth.
For more see homepage of Iwona Chlebicka.