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
16 papers · 1 filter
Irregular finite order solutions of complex LDE's in unit disc
Igor Chyzhykov, Petro Filevych, Janne Gröhn +2
It is shown that the order and the lower order of growth are equal for all non-trivial solutions of if and only if the coefficient is analytic in the unit disc…
Discrete Darboux system with self-consistent sources and its symmetric reduction
Adam Doliwa, Runliang Lin, Zhe Wang
The discrete non-commutative Darboux system of equations with self-consistent sources is constructed, utilizing both the vectorial fundamental (binary Darboux) transformation and t…
The Cayley Graph of Neumann Subgroups
Andrzej Matraś, Artur Siemaszko
All Cayley representations of the distant graph over integers are characterized as Neumann subgroups of the extended modular group. Possible structures of Neumann subgroups a…
Molecular remnant of Nova 1670 (CK Vulpeculae). II. A three-dimensional view on the gas distribution and velocity field
T. Kamiński, W. Steffen, V. Bujarrabal +3
CK Vul is the remnant of an energetic eruption known as Nova 1670 that is thought to be caused by a stellar merger. The remnant is composed of (1) a large hourglass nebula of recom…
Rapid evolution of [WC] stars in the Magellanic Clouds
Marcin Hajduk
We obtained new spectra of fourteen Magellanic Cloud planetary nebulae with the South African Large Telescope to determine heating rates of their central stars and to verify evolut…
The cooling-down central star of the planetary nebula SwSt\,1: a late thermal pulse in a massive post-AGB star?
Marcin Hajduk, Helge Todt, Wolf-Rainer Hamann +3
SwSt 1 (PN G001.5-06.7) is a bright and compact planetary nebula containing a late [WC]-type central star. Previous studies suggested that the nebular and stellar lines are slowly…
Validating post-AGB candidates in the LMC and SMC using SALT spectra
Ryszard Szczerba, Marcin Hajduk, Yakiv V. Pavlenko +8
We selected a sample of post-AGB candidates in the Magellanic Clouds on the basis of their near- and mid-infrared colour characteristics. Fifteen of the most optically bright post-…
On locally homogeneous pseudo-Riemannian compact einstein manifolds
Maciej Bochenski, Aleksy Tralle
We ask a general question: what are locally homogeneous compact pseudo-Riemannian Einstein manifolds? We show that any standard compact Clifford-Klein form of a simple non-compact…
Non-commutative bi-rational maps satisfying Zamolodchikov equation, and Desargues lattices
Adam Doliwa, Rinat M. Kashaev
We present new solutions of the functional Zamolodchikov tetrahedron equation in terms of birational maps in totally non-commutative variables. All the maps originate from Desargue…
Interferometric Imaging with LOFAR Remote Baselines of the Fine Structures of a Solar Type IIIb Radio Burst
PeiJin Zhang, Pietro Zucca, Sarrvesh Seethapuram Sridhar +8
Context. Solar radio bursts originate mainly from high energy electrons accelerated in solar eruptions like solar flares, jets, and coronal mass ejections. A subcategory of solar r…
On the Grassmann Graph of Linear Codes
Ilaria Cardinali, Luca Giuzzi, Mariusz Kwiatkowski
Let be the Grassmann graph formed by the -dimensional subspaces of a vector space of dimension over a field and, for , l…
The effective impedances of infinite ladder networks and Dirichlet problem on graphs
Anna Muranova
We calculate effective impedances of infinite - and - ladder networks as limits of effective impedances of finite network approximations, using a new method, which involves…
LOFAR 144-MHz follow-up observations of GW170817
J. W. Broderick, T. W. Shimwell, K. Gourdji +66
We present low-radio-frequency follow-up observations of AT 2017gfo, the electromagnetic counterpart of GW170817, which was the first binary neutron star merger to be detected by A…
Cassiopeia A, Cygnus A, Taurus A, and Virgo A at ultra-low radio frequencies
F. de Gasperin, J. Vink, J. P. McKean +49
The four persistent radio sources in the northern sky with the highest flux density at metre wavelengths are Cassiopeia A, Cygnus A, Taurus A, and Virgo A; collectively they are ca…
The frequency drift and fine structures of Solar S-bursts in the high frequency band of LOFAR
PeiJin Zhang, Pietro Zucca, ChuanBing Wang +8
Solar S-bursts are short duration ( s at decameter wavelengths) radio bursts that have been observed during periods of moderate solar activity, where S stands for short. The fr…
Simple explanation of Landauer's bound and its ineffectiveness for multivalued logic
Radosław A. Kycia, Agnieszka Niemczynowcz
We discuss, using recent results on the Landauer's bound in multivalued logic, the difficulties and pitfalls of how to apply this principle. The presentation is based on Szilard's…