489 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Netherlands Institute for Radio AstronomyNL23 papers
- Belarusian State UniversityBY14 papers
- Leibniz Institute for Astrophysics PotsdamDE14 papers
- Polish Academy of SciencesPL14 papers
- Thüringer Landessternwarte TautenburgDE14 papers
- University of ManchesterGB14 papers
- University of WarsawPL14 papers
- Leiden UniversityNL13 papers
- Centre National de la Recherche ScientifiqueFR12 papers
- Radboud University NijmegenNL12 papers
- Rutherford Appleton LaboratoryGB12 papers
- Bielefeld UniversityDE11 papers
12 papers · 1 filter
Non-commutative q-Painleve VI equation
Adam Doliwa
By applying suitable centrality condition to non-commutative non-isospectral lattice modified Gel'fand-Dikii type systems we obtain the corresponding non-autonomous equations. Then…
Clifford-Klein forms and a-hyperbolic rank
Maciej Bochenski, Aleksy Tralle
The porpose of this article is to introduce and investigate properties of a tool (the a-hyperbolic rank) which enables us to obtain new examples of homogeneous spaces G/H which adm…
Discrete KP equation with self-consistent sources
Adam Doliwa, Runliang Lin
We show that the discrete Kadomtsev-Petviashvili (KP) equation with sources obtained recently by the "source generalization" method can be incorporated into the squared eigenfuncti…
On theory of regular accelerating Universe in Riemann-Cartan spacetime
A. V. Minkevich
Isotropic cosmology built in the Riemann-Cartan spacetime is investigated. Properties of homogeneous isotropic cosmological models filled with usual gravitating matter and scalar f…
Non-commutative rational Yang-Baxter maps
Adam Doliwa
Starting from multidimensional consistency of non-commutative lattice modified Gel'fand-Dikii systems we present the corresponding solutions of the functional (set-theoretic) Yang-…
Desargues maps and their reductions
Adam Doliwa
We present recent developments on geometric theory of the Hirota system and of the non-commutative discrete Kadomtsev-Petviashvili (KP) hierarchy adding also some new results which…
Transformations of polar Grassmannians preserving certain intersecting relations
Wen Liu, Mark Pankov, Kaishun Wang
Let be a polar space of rank . Denote by the polar Grassmannian formed by singular subspaces of whose projective dimension is equal to . Su…
On simply connected K-contact non-Sasakian manifolds
Boguslaw Hajduk, Aleksy Tralle
We solve the problem posed by Boyer and Galicki about the existence of K-contact simply connected manifolds with no Sasakian structure. Although the result lies in the framework of…
Geometrical characterization of semilinear isomorphisms of vector spaces and semilinear homeomorphisms of normed spaces
Mark Pankov
Let and be vector spaces over division rings (possible infinite-dimensional) and let and be the associated projective spaces. We say t…
On some physical aspects of isotropic cosmology in Riemann-Cartan spacetime
A. V. Minkevich, A. S. Garkun, V. I. Kudin
Isotropic cosmology built in the framework of the Poincaré gauge theory of gravity based on sufficiently general expression of gravitational Lagrangian is considered. The derivatio…
Non-commutative lattice modified Gel'fand-Dikii systems
Adam Doliwa
We introduce integrable multicomponent non-commutative lattice systems, which can be considered as analogs of the modified Gel'fand-Dikii hierarchy. We present the corresponding sy…
Generalized symplectic symmetric spaces
Maciej Bochenski, Aleksy Tralle
Bielavsky introduced and investigated the class of symmetric symplectic spaces, that is, symmetric spaces endowed with a symplectic form invariant with respect to symmetries. Since…