Joint Research Seminar - Nice, Vienna, Brno, Doha

Laurent Stolovitch (Nice) and Bernhard Lamel (Doha, Vienna) have set up a joint work group between the Universities of Nice, Vienna, Brno and Doha about Complex Analysis, Several Complex Variables, CR geometry, Dynamics and their interplay. As is seemingly everything in this day and age, it is conducted via Zoom. We meet on Thursdays - 10 am in most of Europe, 11 am in Qatar. Zoom links are sent out to the seminar's mailing list.

If you wish to be added to the seminar's mailing list, please contact Josef Greilhuber (

Seminar Talks

29.10.2020 9:00 Martino Fassina Supnorm estimates for the Cauchy-Riemann equations on product domains Abstract
05.11.2020 9:00 Jan Gregorovic Construction of counterexamples to the 2-jet determination Chern-Moser Theorem in higher codimension Abstract
12.11.2020 9:00 Josef Greilhuber Deformations of irregular maps from smooth into analytic CR submanifolds Abstract
19.11.2020 9:00 Nordine Mir Unique jet determination and extension of germs of CR maps into spheres Abstract
26.11.2020 9:00 Kai Jiang Integrable diffeomorphisms and their local normal forms Abstract
03.12.2020 9:00 Nordine Mir Unique jet determination and extension of germs of CR maps into spheres - Part II
17.12.2020 9:00 Bernhard Lamel Normal Forms in CR geometry Abstract
14.01.2021 9:00 Josef Greilhuber Regularity of CR maps into uniformly pseudoconvex hypersurfaces Abstract
21.01.2021 9:00 Weixia Zhu Spectral Stability of the complex Laplacians Abstract
28.01.2021 9:00 Martin Klimes Classification of flat CR-singularities of exceptional hyperbolic type Abstract
17.02.2021 14:00 Stefan Fürdös The theorem of iterates for non-elliptic operators, part I Abstract
24.02.2021 14:00 Stefan Fürdös The theorem of iterates for non-elliptic operators, part II Abstract
04.03.2021 09:00 Antonio Victor da Silva Junior On the range of unsolvable systems induced by complex vector fields Abstract
11.03.2021 09:00 Martino Fassina A local obstruction for elliptic operators on flat germs Abstract
18.03.2021 09:00 Luke Edholm Model hypersurfaces and dual CR structures in ℂℙ2 Abstract
25.03.2021 09:00 Duong Ngoc Son On the transversality of CR maps Abstract
01.04.2021 10:00 Michael Reiter On CR maps from the unit sphere into the tube over the future light cone Abstract
15.04.2021 10:00 Bernhard Lamel Everything you ever wanted to (not) know about nondegeneracy conditions Abstract
22.04.2021 10:00 Gian Maria Dall'Ara Around L1 (un)boundedness of Bergman and Szegö projections Abstract
27.05.2021 10:00 Duong Ngoc Son The CR Ahlfors derivative and a new invariant for spherically equivalent CR maps Abstract
10.06.2021 11:00 Martin Kolar Symmetry algebras of polynomial models in complex dimension three Abstract
17.06.2021 10:00 Laurent Stolovitch Introduction to normal form problems Abstract
24.06.2021 10:00 Antonio Victor da Silva Junior A note on unsolvable systems induced by corank 1 locally integrable structures Abstract
08.07.2021 10:00 Maria Stěpanova On CR manifolds of infinite Bloom-Graham type Abstract


  • Bernhard Lamel (Doha, Vienna)
  • Laurent Stolovitch (Nice)
  • Josef Greilhuber (Vienna)


  • Son Duong Ngoc (Vienna)
  • Martino Fassina (Vienna)
  • Stefan Fürdös (Vienna)
  • Jan Gregorovic (Hradec Kralove, Vienna)
  • Friedrich Haslinger (Vienna)
  • Nai Yu Hu (Vienna)
  • Kai Jiang (Nice)
  • Martin Klimes (Zagreb)
  • Martin Kolar (Brno)
  • Ilya Kossovskiy (Brno, Vienna)
  • Yue Mi (Nice)
  • Nordine Mir (Doha)
  • Stephanie Nivoche (Nice)
  • Michael Reiter (Vienna)
  • Antonio Victor da Silva Junior (Sao Paulo)
  • Frances Teichmann (Vienna)
  • Zhiyan Zhao (Nice)