University of Warmia and Mazury in Olsztyn

output

20002026

most citedThe LOFAR Two-metre Sky Survey -- V. Second data release

489 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2018Show all

13 papers · 1 filter

math.CO2018

Doily as Subgeometry of a Set of Nonunimodular Free Cyclic Submodules

Metod Saniga, Edyta Bartnicka

It is shown that there exists a particular associative ring with unity of order 16 such that the relations between nonunimodular free cyclic submodules of its two-dimensional free…

math.DG2018★ 1 cited

Invariant Nijenhuis Tensors and Integrable Geodesic Flows

Konrad Lompert, Andriy Panasyuk

We study invariant Nijenhuis $(1, 1)$ -tensors on a homogeneous space $G / K$ of a reductive Lie group $G$ from the point of view of integrability of a Hamiltonian system of differenti…

physics.med-ph2018★ 17 cited

R1 dispersion contrast at high field with fast field-cycling MRI

Markus Bödenler, Martina Basini, Maria Francesca Casula +5

Contrast agents with a strong $R_{1}$ dispersion have been shown to be effective in generating target-specific contrast in MRI. The utilization of this $R_{1}$ field dependence require…

cs.NE2018★ 52 cited

The Optimal ANN Model for Predicting Bearing Capacity of Shallow Foundations Trained on Scarce Data

Marta Bagińska, Piotr E. Srokosz

This study is focused on determining the potential of using deep neural networks (DNNs) to predict the ultimate bearing capacity of shallow foundation in situations when the experi…

astro-ph.SR2018★ 12 cited

ALMA reveals the aftermath of a white dwarf--brown dwarf merger in CK Vulpeculae

Stewart Eyres, Aneurin Evans, Albert Zijlstra +7

We present Atacama Large Millimeter-Submillimeter Array (ALMA) observations of CK Vulpeculae which is identified with "Nova Vulpeculae 1670". They trace obscuring dust in the inner…

math-ph2018

A non-injective version of Wigner's theorem

Mark Pankov, Lucijan Plevnik

Let $H$ be a complex Hilbert space and let $F_{s} (H)$ be the real vector space of all self-adjoint finite rank operators on $H$ . We prove the following non-injective ver…

astro-ph.GA2018★ 17 cited

Radio observations of planetary nebulae: no evidence for strong radial density gradients

Marcin Hajduk, Peter A. M. van Hoof, Karolina Śniadkowska +4

Radio continuum observations trace thermal emission of ionized plasma in planetary nebulae and bring useful information on nebular geometries. A model of homogeneous sphere or shel…

math.RT2018★ 4 cited

Semisimple subalgebras in simple Lie algebras and a computational approach to the compact Clifford-Klein forms problem

Maciej Bocheński, Piotr Jastrzębski, Anna Szczepkowska +2

In this paper we develop algorithms of finding homogeneous spaces of semisimple non-compact Lie groups which do not admit compact Clifford-Klein forms. We propose a computer progra…

astro-ph.SR2018★ 85 cited

Shock location and CME 3D reconstruction of a solar type II radio burst with LOFAR

P. Zucca, D. E. Morosan, A. P. Rouillard +62

Type II radio bursts are evidence of shocks in the solar atmosphere and inner heliosphere that emit radio waves ranging from sub-meter to kilometer lengths. These shocks may be ass…

math.FA2018

Wigner's type theorem in terms of linear operators which send projections of a fixed rank to projections of other fixed rank

Mark Pankov

Let $H$ be a complex Hilbert space whose dimension is not less than $3$ and let $F_{s} (H)$ be the real vector space formed by all self-adjoint operators of finite rank o…

astro-ph.SR2018★ 38 cited

LOFAR observations of the quiet solar corona

C. Vocks, G. Mann, F. Breitling +9

The quiet solar corona emits meter-wave thermal bremsstrahlung. Coronal radio emission can only propagate above that radius, $R_{ω}$ , where the local plasma frequency eqals the obser…

astro-ph.HE2018★ 46 cited

Low-Frequency Radio Absorption in Cassiopeia A

M. Arias, J. Vink, F. de Gasperin +3

Cassiopeia A is one of the best-studied supernova remnants. Its shocked ejecta emits brightly in radio and X-rays. Its unshocked ejecta can be studied through infrared emission, th…

math.CO2018★ 1 cited

On two types of $Z$ -monodromy in triangulations of surfaces

Mark Pankov, Adam Tyc

Let $Γ$ be a triangulation of a connected closed $2$ -dimensional (not necessarily orientable) surface. Using zigzags (closed left-right paths), for every face of $Γ$ we define the…