Results 121 to 130 of about 143,400 (232)

Covering Graphs with Few Complete Bipartite Subgraphs

Theoretical Computer Science, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fleischner, H., Mujuni, E., Paulusma, Daniel, Szeider, S.   +3 more
openaire   +2 more sources

Another Proof of the Generalized Tutte—Berge Formula for f‐Bounded Subgraphs

Journal of Graph Theory, Volume 112, Issue 2, Page 145-150, June 2026.
ABSTRACT Given a nonnegative integer weight f ( v ) for each vertex v in a multigraph G, an f‐bounded subgraph of G is a multigraph H contained in G such that d H ( v ) ≤ f ( v ) for all v ∈ V ( G ). Using Tutte's f‐Factor Theorem, we give a new proof of the min–max relation for the maximum size of an f‐bounded subgraph of G. When f ( v ) = 1 for all v,
Zishen Qu, Douglas B. West
wiley   +1 more source

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, Volume 87, Issue 4, Page 343-371, June 2026.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source

Structural Characterization, β‐Cyclodextrin Polymer Interaction, and Biological Assessment of the N‐Terminal Peptide from the RPD‐1 Big Defensin of Ruditapes p hilippinarum

Chemistry–Methods, Volume 6, Issue 5, May 2026.
Defensins are a large and ancient family of host–defence peptides present across vertebrates, invertebrates, and plants, where they play a crucial role in innate immunity. Among them, big defensins represent a structurally distinctive subfamily characterized by a hydrophobic N‐terminal domain and a cysteine‐rich C‐terminal β‐defensin‐like domain. Here,
Rita Turnaturi, Giuseppa Augello, Giuseppe Nocito, Marcello Tagliavia, Stefania Zimbone, Rosalia Pellitteri, Giuseppina Sabatino, Giuseppe Di Natale, Michele F. M. Sciacca, Milo Malanga, Antonino Mazzaglia, Melchiorre Cervello, Giuseppe Pappalardo   +12 more
wiley   +1 more source

Decomposition of Certain Complete Bipartite Graphs into Prisms

Discussiones Mathematicae Graph Theory, 2017
Häggkvist [6] proved that every 3-regular bipartite graph of order 2n with no component isomorphic to the Heawood graph decomposes the complete bipartite graph K6n,6n.
Froncek Dalibor
doaj   +1 more source

Exploration of regularities in bipartite graphs using GEOGEBRA software

LatIA
A classroom proposal is presented to integrate contents of Graph Theory and Linear Algebra in complete bipartite graphs, linking adjacency and Laplacian matrices, the eigenvalues of graphs will be determined, applicable to connectivity concepts. Students
E. Oliva, Mathias Díaz
semanticscholar   +1 more source

The scaling of seed‐dispersal specialization in interaction networks across levels of organization

Ecography, Volume 2026, Issue 5, May 2026.
Natural ecosystems are characterized by a specialization pattern where few species are common while many others are rare. In ecological networks involving biotic interactions, specialization operates as a continuum at individual, species, and community levels. Theory predicts that ecological and evolutionary factors can primarily explain specialization.
Gabriel M. Moulatlet, Pedro Luna, Wesley Dáttilo, Fabricio Villalobos   +3 more
wiley   +1 more source

Signed total double Roman dominating functions in graphs

AKCE International Journal of Graphs and Combinatorics
A signed total double Roman dominating function (STDRDF) on an isolated-free graph [Formula: see text] is a function [Formula: see text] such that (i) every vertex v with [Formula: see text] has at least two neighbors assigned 2 under f or one neighbor w
L. Shahbazi, H. Abdollahzadeh Ahangar, S. M. Sheikholeslami   +2 more
doaj   +1 more source

Conkazal‐M1 from the MKAVA family of conotoxins: A dual‐function protease inhibitor and neuroactive peptide

Protein Science, Volume 35, Issue 5, May 2026.
Abstract Marine cone snails produce a diverse array of bioactive peptides, known as conotoxins, in their venom. Given their high target potency and specificity, conotoxins are attractive compounds for the development of precision research tools and pharmacological agents.
Celeste M. Hackney, Thomas Lund Koch, Nicklas Lund Ryding, Aymeric Rogalski, Kevin Chase, Matías Leonel Giglio, Samuel S. Espino, Zildjian G. Acyatan, Maren Watkins, Baldomero M. Olivera, Helena Safavi‐Hemami, Kaare Teilum, Lars Ellgaard   +12 more
wiley   +1 more source

Polymatroidal tilings and the Chow class of linked projective spaces

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract Linked projective spaces are quiver Grassmannians of constant dimension one of certain quiver representations, called linked nets, over certain quivers, called Zn$\mathbb {Z}^n$‐quivers. They were recently introduced as a tool for describing schematic limits of families of divisors.
Felipe de Leon, Eduardo Esteves
wiley   +1 more source