9.8k citations
- Polish Academy of SciencesPL934 papers
- University of WarsawPL327 papers
- National Academy of Sciences of UkraineUA264 papers
- Centre National de la Recherche ScientifiqueFR166 papers
- University of BiałystokPL138 papers
- Vietnam Academy of Science and TechnologyVN126 papers
- Jagiellonian UniversityPL125 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT115 papers
- University of GlasgowGB114 papers
- University of TrentoIT114 papers
- Max Planck Institute for Gravitational PhysicsDE113 papers
- Sorbonne UniversitéFR112 papers
91 papers · 1 filter
Spectral analysis of self-adjoint first order differential operators with nonlocal potentials
Kamila Dębowska, Irina L. Nizhnik
The paper considers the general form of self-adjoint boundary value problems for momentum operators with nonlocal potentials. We give an analysis of the eigenvalue distribution as…
Unconditional convergence of eigenfunction expansions for abstract and elliptic operators
Vladimir Mikhailets, Aleksandr Murach
We study the most general class of eigenfunction expansions for abstract normal operators with pure point spectrum in a complex Hilbert space. We find sufficient conditions for suc…
Morse predecomposition of an ivariant set
Michał Lipiński, Konstantin Mischaikow, Marian Mrozek
Motivated by the study of the recurrent orbits in a Morse set of a Morse decomposition, we introduce the concept of Morse predecomposition of an isolated invariant set in the setti…
On the -Picard group of Stein spaces
Veronika Ertl, Sally Gilles, Wiesława Nizioł
We study the image of the Hodge-Tate logarithm map (in any cohomological degree), defined by Heuer, in the case of smooth Stein varieties. Heuer, motivated by the computations for…
SICs and the Triangle Group
Danylo Yakymenko
The problem of existence of symmetric informationally-complete positive operator-valued measures (SICs for short) in every dimension is known as Zauner's conjecture and remains ope…
Stability Properties of Multi-Order Fractional Differential Systems in 3D
Kai Diethelm, Safoura Hashemishahraki, Ha Duc Thai +1
This paper is devoted to studying three-dimensional non-commensurate fractional order differential equation systems with Caputo derivatives. Necessary and sufficient conditions are…