Search Results - "Pavlíková, Soňa"
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1
Characters of twisted fractional linear groups
Published in Communications in algebra (02-09-2022)“…We determine character tables for twisted fractional linear groups that form the "other" family in Zassenhaus' classification of finite sharply 3-transitive…”
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2
Extreme and statistical properties of eigenvalue indices of simple connected graphs
Published in Discrete mathematics (01-08-2024)“…We analyze graphs attaining the extreme values of various spectral indices in the class of all simple connected graphs, as well as in the class of graphs which…”
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3
On a construction of integrally invertible graphs and their spectral properties
Published in Linear algebra and its applications (01-11-2017)“…Godsil (1985) defined a graph to be invertible if it has a non-singular adjacency matrix whose inverse is diagonally similar to a nonnegative integral matrix;…”
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4
Enumeration of regular maps of given type on twisted linear fractional groups
Published in The Bulletin of the London Mathematical Society (01-08-2023)“…We enumerate orientably regular maps of any given type with automorphism group isomorphic to a twisted linear fractional group; these groups form the ‘other’…”
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5
Orientable and non-orientable regular maps with given exponent group
Published in Journal of algebra (15-04-2023)“…With the help of the parallel product (also known as the join) of maps given by subgroups of triangle groups, and some facts about automorphisms of products of…”
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6
On the Moore-Penrose pseudo-inversion of block symmetric matrices and its application in the graph theory
Published in Linear algebra and its applications (15-09-2023)“…The purpose of this paper is to analyze the Moore-Penrose pseudo-inversion of symmetric real matrices with application in the graph theory. We introduce a…”
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7
2-[3-(Trifluoromethyl)phenyl]furo[3,2-b]pyrroles: synthesis and reactions
Published in Open Chemistry (01-06-2005)Get full text
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8
Gsim - Software for simulation in electronics
Published in Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010 (01-09-2010)“…This paper presents a few examples of the possibility of effective use of open-source simulation tools within the project gsim to solve the problems of the…”
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Conference Proceeding -
9
Characters of twisted fractional linear groups
Published 27-09-2020“…We determine character tables for twisted fractional linear groups that form the `other' family in Zassenhaus' classification of finite sharply 3-transitive…”
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10
Inverting non-invertible trees
Published 30-12-2017“…If a graph has a non-singular adjacency matrix, then one may use the inverse matrix to define a (labeled) graph that may be considered to be the inverse graph…”
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11
Inversed Matrixes in Electric Circuits Parameters Estimation by Oriented Graphs
Published in Komunikácie : vedecké listy Žilinskej univerzity = Communications : scientific letters of the University of Žilina (2013)“…The base of electric circuit analysis is often set up on numerical methods. When taking a look into the principle of any numerical method, a matrix calculus…”
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12
Qualitative, statistical and extreme properties of spectral indices of signable pseudo-invertible graphs
Published 07-03-2024“…In this paper, we investigate the Moore-Penrose inversion of a simple connected graph. We analyze qualitative, statistical, and extreme properties of spectral…”
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13
On the Moore-Penrose pseudo-inversion of block symmetric matrices and its application in the graph theory
Published 23-07-2022“…The purpose of this paper is to analyze the Moore-Penrose pseudo-inversion of symmetric real matrices with application in the graph theory. We introduce a…”
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Journal Article -
14
Orientably-regular embeddings of complete multigraphs
Published 16-11-2023“…An embedding of a graph on an orientable surface is orientably-regular (or rotary, in an equivalent terminology) if the group of orientation-preserving…”
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15
Extreme and statistical properties of eigenvalue indices of simple connected graphs
Published 12-06-2023“…We analyze graphs attaining the extreme values of various spectral indices in the class of all simple connected graphs, as well as in the class of graphs which…”
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16
On Construction of Upper and Lower Bounds for the HOMO-LUMO Spectral Gap
Published 03-06-2018“…Numerical Algebra, Control and Optimization, 9(1) 2019, 53-69 In this paper we study spectral properties of graphs which are constructed from two given…”
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17
On a Construction of Integrally Invertible Graphs and their Spectral Properties
Published 05-07-2017“…Linear Algebra and its Applications, 532 (2017), 512-533 Godsil (1985) defined a graph to be invertible if it has a non-singular adjacency matrix whose inverse…”
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18
Invertibility of graphs with a unique perfect matching
Published 07-12-2016“…In this paper we investigate invertibility of graphs with a unique perfect matching, i.e. graphs having a unique 1-factor. We recall the new notion of the…”
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19
Maximization of the Spectral Gap for Chemical Graphs by means of a Solution to a Mixed Integer Semidefinite Program
Published 21-11-2016“…In this paper we analyze the spectral gap of a weighted graph which is the difference between the smallest positive and largest negative eigenvalue of its…”
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20
Methods of temperature estimation on given area in system of data collection
Published in 14th International Conference Mechatronika (01-06-2011)“…In the system of temperature data collection, the measured data with their position are continuously stored in database. The placements of these sensors are in…”
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Conference Proceeding