Results 21 to 30 of about 3,311 (246)
Drawing planar graphs with circular arcs [PDF]
Discrete & Computational Geometry, 1999 The authors study the problem of drawing planar graphs with circular arcs, while maintaining good angular resolution and small drawing area. They show the following: (1) There is an \(n\)-vertex planar graph requiring area exponential in \(n\) for any drawing using single-circle arcs for edges and having good angular resolution. (2) Let \(d(v)\) be the
C. C. Cheng +3 more
openaire +2 more sources
Essential obstacles to Helly circular-arc graphs
, 2022 A Helly circular-arc graph is the intersection graph of a set of arcs on a circle having the Helly property. We introduce essential obstacles, which are a refinement of the notion of obstacles, and prove that essential obstacles are precisely the minimal
Safe, Martin Dario
core +1 more source
Power Domination in Circular-Arc Graphs [PDF]
Algorithmica, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chung-Shou Liao, D. T. Lee
openaire +1 more source
Materials Research Express, 2020 Sr _1−x Ba _x Co _1−x Fe _x O _3− _δ (BSCF) nanoparticles were successfully synthesized with three modified wet chemical techniques; composite mediated hydrothermal method (CMHM), without water and surfactants (WOWS) sol-gel and co-precipitation methods.
Tanveer Akhtar, M Anis-ur-Rehman
doaj +1 more source
The Topological Connectivity of the Independence Complex of Circular-Arc Graphs
Universal Journal of Mathematics and Applications, 2019 Let us denoted the topological connectivity of a simplicial complex $C$ plus 2 by $\eta(C)$. Let $\psi$ be a function from class of graphs to the set of positive integers together with $\infty$. Suppose $\psi$ satisfies the following properties: \newline
Yousef Abd Algani
doaj +1 more source
New characterizations of proper interval bigraphs
AKCE International Journal of Graphs and Combinatorics, 2015 A proper interval bigraph is a bigraph where to each vertex we can assign a closed interval such that the intervals can be chosen to be inclusion free and vertices in the opposite partite sets are adjacent when the corresponding intervals intersect.
Ashok Kumar Das, Ritapa Chakraborty
doaj +1 more source
On the Cubicity of AT-Free Graphs and Circular-Arc Graphs [PDF]
, 2009 9 pages, 0 ...
L. Sunil Chandran +2 more
openaire +2 more sources
Subclasses of Normal Helly Circular-Arc Graphs [PDF]
, 2011 A Helly circular-arc modelM = (C,A) is a circle C together with a Helly family A of arcs of C. If no arc is contained in any other, thenM is a proper Helly circular-arc model, if every arc has the same length, then M is a unit Helly circular-arc model ...
Szwarcfiter, Jayme L. +5 more
core +1 more source
MagmaFlow: A desktop platform for artificial intelligence‐driven expression analysis
FEBS Open Bio, EarlyView.MagmaFlow is a free, no‐code platform for gene expression analysis. It generates interactive volcano plots, links genes to literature, pathways, and diseases, prioritizes candidates using millions of publications, identifies affected biological processes, builds network diagrams, and exports publication‐ready figures and reports for macOS and Windows ...
Carlos E. Buss +7 more
wiley +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source