Results 11 to 20 of about 17,820 (243)

The book thickness of a graph

open access: closedJournal of Combinatorial Theory, Series B, 1979
AbstractThe book thickness bt(G) of a graph G is defined, its basic properties are delineated, and relations are given with other invariants such as thickness, genus, and chromatic number. A graph G has book thickness bt(G) ≤ 2 if and only if it is a subgraph of a hamiltonian planar graph, but we conjecture that there are planar graphs with arbitrarily
Bernhart, Frank, Kainen, Paul C
openaire   +3 more sources

Book thickness of the non-zero component union graph of the finite dimensional vector space

open access: closedIndian Journal of Pure and Applied Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rilwan, N. Mohamed, Devi, S. Vasanthi
openaire   +2 more sources

Graphs with Small Book Thickness

open access: closedMissouri Journal of Mathematical Sciences, 2007
In an article published in 1979, Kainen and Bernhart [1] laid the groundwork for further study of book embeddings of graphs. They define an $n$-book as a line $L$ in 3-space, called the spine, and $n$ half-planes, called pages, with $L$ as their common boundary.
Shannon Overbay
openaire   +3 more sources

Genus and book thickness of reduced cozero-divisor graphs of commutative rings

open access: diamondRevista de la Unión Matemática Argentina
Summary: For a commutative ring \(R\) with identity, let \(\langle a\rangle\) be the principal ideal generated by \(a\in R\). Let \(\Omega (R)^*\) be the set of all nonzero proper principal ideals of \(R\). The reduced cozero-divisor graph \(\Gamma_r (R)\) of \(R\) is the simple undirected graph whose vertex set is \(\Omega (R)^*\) and such that two ...
Jesili, Edward   +2 more
openaire   +2 more sources

Winter Arctic sea ice thickness from ICESat-2: upgrades to freeboard and snow loading estimates and an assessment of the first three winters of data collection [PDF]

open access: yesThe Cryosphere, 2023
NASA's ICESat-2 mission has provided near-continuous, high-resolution estimates of sea ice freeboard across both hemispheres since data collection started in October 2018.
A. A. Petty   +7 more
doaj   +1 more source

Pathomorphological changes in the early postnatal period in a calf with abomasum rupture [PDF]

open access: yesBIO Web of Conferences, 2022
The main cause of the disease and death of calves in the early postembryonic period of development is a feeding disorder. The aim of the work was to analyze macro-and micromorphological changes in the digestive system of a calf with a rennet rupture.
Mannova Maria Sergeevna   +2 more
doaj   +1 more source

Stacks, Queues and Tracks: Layouts of Graph Subdivisions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
A \emphk-stack layout (respectively, \emphk-queuelayout) of a graph consists of a total order of the vertices, and a partition of the edges into k sets of non-crossing (non-nested) edges with respect to the vertex ordering.
Vida Dujmović, David R. Wood
doaj   +1 more source

On Linear Layouts of Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2004
In a total order of the vertices of a graph, two edges with no endpoint in common can be \emphcrossing, \emphnested, or \emphdisjoint. A \emphk-stack (respectively, \emphk-queue, \emphk-arch) \emphlayout of a graph consists of a total order of the ...
Vida Dujmović, David R. Wood
doaj   +1 more source

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