Results 31 to 40 of about 20,236 (296)
The matrix Jacobson graph of finite commutative rings
Electronic Journal of Graph Theory and Applications, 2022 The notion of the matrix Jacobson graph was introduced in 2019. Let R be a commutative ring and J(R) be the Jacobson radical of ring R. The matrix Jacobson graph of ring R size m × n, denoted 𝔍(R)m × n, is defined as a graph where the vertex set is Rm ...
Siti Humaira +3 more
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, 2016 In this paper we settle the computational complexity of two open problems related to the extension of the notion of level planarity to surfaces different from the plane. Namely, we show that the problems of testing the existence of a level embedding of a
Frati, F. +20 more
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Planar Depth and Planar Subalgebras
Journal of Functional Analysis, 2002 In [Planar algebras. I (preprint math.QA/9909027)] planar algebras were introduced by \textit{V. F. R. Jones} to get insight in the study of subfactors, especially in the algebraic-combinatorial aspects of the lattice of higher relative commutants. To each extremal type \(II_1\) finite index subfactor inclusion, Jones has associated a spherical \(C^*\)-
Landau, Zeph, Sunder, V.S
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Comparative study of resonance-inhibited hydrogen bonded (RIHB) systems with different atoms involved: the leading role of σ-planarity [PDF]
, 2019 O, S, Se, and P atoms are considered as different proton donor/acceptor moieties in the resonance-inhibited hydrogen bonded (RIHB) interactions to conduct a comparative investigation.
Alireza Nowroozi (6168557) +1 more
core +1 more source
Computing Planarity in Computable Planar Graphs
Graphs and Combinatorics, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Oscar Levin, Taylor McMillan
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Евразийский Кардиологический Журнал, 2022 The aim of the work is to evaluate the planarity of the QRS loop and its relationship with systolic dysfunction of the left ventricle in patients in the subacute period of myocardial infarction (MI).Materials and methods.
E. V. Blinova +9 more
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Inverse Neutrosophic Planar Graphs and its application in optimizing the expenditure in inter-cropping [PDF]
Neutrosophic Sets and SystemsThough Neutrosophic graphs have high impact on dealing with problems of indeterminacy, it may not directly address all aspects of edge membership degree constraints such as the truth membership degree of all edge is greater than or equal to the minimum ...
Thempaavai J.P, Antony Crispin Sweety C
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Clustered Planarity = Flat Clustered Planarity [PDF]
, 2018 The complexity of deciding whether a clustered graph admits a clustered planar drawing is a long-standing open problem in the graph drawing research area. Several research efforts focus on a restricted version of this problem where the hierarchy of the clusters is "flat", i.e., no cluster different from the root contains other clusters.
Pier Francesco Cortese +1 more
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Journal of Algebraic Combinatorics, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Starr, Colin L., Turner, Galen E. III
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Recognizing IC-Planar and NIC-Planar Graphs
Journal of Graph Algorithms and Applications, 2018 We prove that triangulated IC-planar graphs and triangulated $K_5$-free or $X4W$-free NIC-planar graphs can be recognized in cubic time. A graph is 1-planar if it can be drawn in the plane with at most one crossing per edge. A drawing is IC-planar if, in addition, each vertex is incident to at most one crossing edge and NIC-planar if two pairs of ...
Christian Bachmaier +4 more
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