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288 papers · 1 filter
Approximation of Schrödinger operators with -interactions supported on hypersurfaces
Jussi Behrndt, Pavel Exner, Markus Holzmann +1
We show that a Schrödinger operator with a -interaction of strength supported on a bounded or unbounded -hypersurface , , can…
Finite element method and isogeometric analysis in electronic structure calculations: convergence study
Robert Cimrman, Matyáš Novák, Radek Kolman +2
We compare convergence of isogeometric analysis (IGA), a spline modification of finite element method (FEM), with FEM in the context of our real space code for ab-initio electronic…
Correlation of HI shells and CO clumps in the outer Milky Way
Sona Ehlerova, Jan Palous
HI shells, which may be formed by the activity of young and massive stars, or connected to energy released by interactions of high-velocity clouds with the galactic disk, may be pa…
Conflict Solution According to "Aggressiveness" of Agents in Floor-Field-Based Model
Pavel Hrabák, Marek Bukáček
This contribution introduces an element of "aggressiveness" into the Floor-Field based model with adaptive time-span. The aggressiveness is understood as an ability to win conflict…
Astrophysics of "extreme" solar-like stars
M. D. Caballero-Garcia, A. J. Castro-Tirado, A. Claret +8
Only a few red dwarf flaring stars in the solar neighbourhood have undergone exceptional events called superflares. They have been detected with high-energy satellites (i.e. Swift)…
Hückel--Hubbard-Ohno modeling of -bonds in ethene and ethyne with application to trans-polyacetylene
Máté Timár, Gergely Barcza, Florian Gebhard +2
Quantum chemistry calculations provide the potential energy between two carbon atoms in ethane (HCCH), ethene (HCCH), and ethyne (HCCH) as a function…