Results 21 to 30 of about 992 (103)

A Note on the Maximum Genus of Graphs with Diameter 4 [PDF]

open access: yes, 2007
Let G be a simple graph with diameter four, if G does not contain complete subgraph K3 of order ...
Lin, Zhao, WeiLi, He, Xiang, Ren
core   +1 more source

In vitro antimicrobial activity of a gel containing antimicrobial peptide AMP2041, chlorhexidine digluconate and Tris‐EDTA on clinical isolates of Pseudomonas aeruginosa from canine otitis

open access: yesVeterinary Dermatology, Volume 27, Issue 5, Page 391-e98, October 2016., 2016
Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo   +6 more
wiley   +1 more source

Improved Bounds for Some Facially Constrained Colorings

open access: yesDiscussiones Mathematicae Graph Theory, 2023
A facial-parity edge-coloring of a 2-edge-connected plane graph is a facially-proper edge-coloring in which every face is incident with zero or an odd number of edges of each color. A facial-parity vertex-coloring of a 2-connected plane graph is a proper
Štorgel Kenny
doaj   +1 more source

Characteristic polynomials of some weighted graph bundles and its application to links

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 3, Page 503-510, 1994., 1994
In this paper, we introduce weighted graph bundles and study their characteristic polynomial. In particular, we show that the characteristic polynomial of a weighted ‐bundles over a weighted graph G? can be expressed as a product of characteristic polynomials two weighted graphs whose underlying graphs are G As an application, we compute the signature ...
Moo Young Sohn, Jaeun Lee
wiley   +1 more source

A subexponential construction of graph coloring for multiparty computation

open access: yesJournal of Mathematical Cryptology, 2014
We show the first deterministic construction of an unconditionally secure multiparty computation (MPC) protocol in the passive adversarial model over black-box non-Abelian groups which is both optimal (secure against an adversary who possesses any ...
Asghar Hassan Jameel   +3 more
doaj   +1 more source

Generalized Ramsey numbers for paths in 2‐chromatic graphs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 9, Issue 2, Page 273-276, 1986., 1985
Chung and Liu have defined the d‐chromatic Ramsey number as follows. Let 1 ≤ d ≤ c and let . Let 1, 2, …, t be the ordered subsets of d colors chosen from c distinct colors. Let G1, G2, …, Gt be graphs. The d‐chromatic Ramsey number denoted by is defined as the least number p such that, if the edges of the complete graph Kp are colored in any fashion ...
R. Meenakshi, P. S. Sundararaghavan
wiley   +1 more source

Flippable Edges in Triangulations on Surfaces

open access: yesDiscussiones Mathematicae Graph Theory, 2022
Concerning diagonal flips on triangulations, Gao et al. showed that any triangulation G on the sphere with n ≥ 5 vertices has at least n − 2 flippable edges.
Ikegami Daiki, Nakamoto Atsuhiro
doaj   +1 more source

The 4-girth-thickness of the complete multipartite graph

open access: yes, 2019
The $g$-girth-thickness $\theta(g,G)$ of a graph $G$ is the smallest number of planar subgraphs of girth at least $g$ whose union is $G$. In this paper, we calculate the $4$-girth-thickness $\theta(4,G)$ of the complete $m$-partite graph $G$ when each ...
Rubio-Montiel, Christian
core   +1 more source

The Crossing Numbers of Join of Some Graphs with n Isolated Vertices

open access: yesDiscussiones Mathematicae Graph Theory, 2018
There are only few results concerning crossing numbers of join of some graphs. In this paper, for some graphs on five vertices, we give the crossing numbers of its join with n isolated vertices.
Ding Zongpeng, Huang Yuanqiu
doaj   +1 more source

Fundamental Cycles and Graph Embeddings

open access: yes, 2008
In this paper we present a new Good Characterization of maximum genus of a graph which makes a common generalization of the works of Xuong, Liu, and Fu et al.
B. Mohar   +10 more
core   +2 more sources

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