Results 91 to 100 of about 12,385 (266)
Some structural graph properties of the non-commuting graph of a class of finite Moufang loops
Electronic Journal of Graph Theory and Applications, 2020 For any non-abelian group G, the non-commuting graph of G, Γ=ΓG, is a graph with vertex set G \ Z(G), where Z(G) is the set of elements of G that commute with every element of G and distinct non-central elements x and y of G are joined by an edge if and ...
Hamideh Hasanzadeh Bashir +1 more
doaj +1 more source
Influence of the tie-break rule on the end-vertex problem [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 End-vertices of a given graph search may have some nice properties, as for example it is well known that the last vertex of Lexicographic Breadth First Search (LBFS) in a chordal graph is simplicial, see Rose, Tarjan and Lueker 1976.
Pierre Charbit +2 more
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The feasibility principle in community ecology
Oikos, EarlyView.The structure and function of ecological communities emerge from interactions among populations within specific environmental contexts. Yet we still lack general principles that explain how communities assemble, which patterns we should expect, and when transitions occur across diverse settings.
Serguei Saavedra
wiley +1 more source
A new construction for vertex decomposable graphs [PDF]
Transactions on Combinatorics, 2016 Let G be a finite simple graph on the vertex set V(G) and let S⊆V(G). Adding a whisker to G at x means adding a new vertex y and edge xy to G where x∈V(G). The graph G∪W(S) is obtained from G by adding a whisker to every vertex of S. We prove that if G∖S
Nasser Hajisharifi, Abolfazl Tehranian
doaj
Discussiones Mathematicae Graph Theory, 2016 We study domination between different types of walks connecting two non-adjacent vertices u and v of a graph (shortest paths, induced paths, paths, tolled walks).
Alcón Liliana
doaj +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Arboreta bridge people and nature while conserving tree biodiversity, supporting climate resilience, and advancing environmental education. This study maps over a century of available and indexed arboretum research, uncovering trends, knowledge gaps, and opportunities for collaboration.
Catarina Patoilo Teixeira +1 more
wiley +1 more source
Phytotherapy Research, EarlyView.In vitro and in vivo effects of PTSO in colorectal cancer preclinical models, highlighting antiproliferative, pro‐apoptotic, barrier‐enhancing, antitumor, prebiotic and immunomodulatory properties. Created using BioRender. ABSTRACT Allium‐derived organosulfur compounds offer significant health benefits.
María Jesús Rodríguez‐Sojo +16 more
wiley +1 more source
On the 2-token graph of a graph
AKCE International Journal of Graphs and Combinatorics, 2020 Let be a graph and let be a positive integer. Let = and . The -token graph is the graph with vertex set and two vertices and are adjacent if and , where denotes the symmetric difference. In this paper we present several basic results on 2-token graphs.
J. Deepalakshmi +3 more
doaj +1 more source
Kernels for the Disjoint Paths Problem on Subclasses of Chordal Graphs [PDF]
, 2023 Juhi Chaudhary +3 more
openalex +1 more source
Rapid Communications in Mass Spectrometry, EarlyView.ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley +1 more source