Results 11 to 20 of about 1,191,800 (264)

Local boxicity and maximum degree

open access: yesDiscrete Mathematics, 2022
17 ...
Atrayee Majumder, Rogers Mathew
openaire   +3 more sources

The maximum likelihood degree [PDF]

open access: yesAmerican Journal of Mathematics, 2006
Maximum likelihood estimation in statistics leads to the problem of maximizing a product of powers of polynomials. We study the algebraic degree of the critical equations of this optimization problem. This degree is related to the number of bounded regions in the corresponding arrangement of hypersurfaces, and to the Euler characteristic of the ...
Catanese, Fabrizio   +3 more
openaire   +2 more sources

Acyclic Coloring of Graphs of Maximum Degree $\Delta$ [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
An acyclic coloring of a graph $G$ is a coloring of its vertices such that: (i) no two neighbors in $G$ are assigned the same color and (ii) no bicolored cycle can exist in $G$.
Guillaume Fertin, André Raspaud
doaj   +1 more source

Reducing the maximum degree of a graph: comparisons of bounds

open access: yesTheory and Applications of Graphs, 2021
Let $\lambda(G)$ be the smallest number of vertices that can be removed from a non-empty graph $G$ so that the resulting graph has a smaller maximum degree.
Peter Borg
doaj   +1 more source

Strong Immersions and Maximum Degree [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2014
10 ...
Zdenek Dvorák 0001, Tereza Klimosová
openaire   +2 more sources

Random Graphs with a Fixed Maximum Degree [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2020
We study the component structure of the random graph $G=G_{n,m,d}$. Here $d=O(1)$ and $G$ is sampled uniformly from ${\mathcal G}_{n,m,d}$, the set of graphs with vertex set $[n]$, $m$ edges and maximum degree at most $d$. If $m=μn/2$ then we establish a threshold value $μ_\star$ such that if $μμ_\star$ then w.h.p.
Alan M. Frieze, Tomasz Tkocz
openaire   +3 more sources

The Maximum Degree of Series-Parallel Graphs [PDF]

open access: yesCombinatorics, Probability and Computing, 2011
We prove that the maximum degree Δnof a random series-parallel graph withnvertices satisfies Δn/logn→cin probability, andΔn~clognfor a computable constantc> 0. The same kind of result holds for 2-connected series-parallel graphs, for outerplanar graphs, and for 2-connected outerplanar graphs.
Drmota, Michael   +2 more
openaire   +4 more sources

Boxicity and maximum degree

open access: yesJournal of Combinatorial Theory, Series B, 2008
An axis-parallel $d$--dimensional box is a Cartesian product $R_1 \times R_2 \times ... \times R_d$ where $R_i$ (for $1 \le i \le d$) is a closed interval of the form $[a_i, b_i]$ on the real line. For a graph $G$, its \emph{boxicity} $\boxi(G)$ is the minimum dimension $d$, such that $G$ is representable as the intersection graph of (axis--parallel ...
Chandran, L Sunil   +2 more
openaire   +3 more sources

Chromatic index, treewidth and maximum degree [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2016
We conjecture that any graph $G$ with treewidth $k$ and maximum degree $\Delta(G)\geq k + \sqrt{k}$ satisfies $\chi'(G)=\Delta(G)$. In support of the conjecture we prove its fractional version. We also show that any graph $G$ with treewidth $k\geq 4$ and maximum degree $2k-1$ satisfies $\chi'(G)=\Delta(G)$, extending an old result of Vizing.
Henning Bruhn   +2 more
openaire   +3 more sources

Equating κ Maximum Degrees in Graphs without Short Cycles

open access: yesDiscussiones Mathematicae Graph Theory, 2020
For an integer k at least 2, and a graph G, let fk(G) be the minimum cardinality of a set X of vertices of G such that G − X has either k vertices of maximum degree or order less than k.
Fürst Maximilian   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy