Results 131 to 140 of about 5,946 (233)

Edge‐Length Preserving Embeddings of Graphs Between Normed Spaces

Journal of Graph Theory, Volume 112, Issue 4, Page 491-506, August 2026.
ABSTRACT The concept of graph embeddability, initially formalized by Belk and Connelly and later expanded by Sitharam and Willoughby, extends the question of embedding finite metric spaces into a given normed space. A finite simple graph G = ( V , E ) is said to be ( X , Y )‐embeddable if any set of induced edge lengths from an embedding of G into a ...
Sean Dewar, Eleftherios Kastis, Derek Kitson, William Sims   +3 more
wiley   +1 more source

Informative Missingness in Nominal Data: A Graph-Theoretic Approach to Revealing Hidden Structure. [PDF]

Comput Struct Biotechnol J
Zangene E, Schwämmle V, Jafari M.
europepmc   +1 more source

Asymmetric Results About Graph Homomorphisms

Random Structures &Algorithms, Volume 69, Issue 1, August 2026.
ABSTRACT Many important results in extremal graph theory can be roughly summarized as “if a triangle‐free graph G$$ G $$ has certain properties, then it has a homomorphism to a triangle‐free graph Γ$$ \Gamma $$ of bounded size.” For example, bounds on homomorphism thresholds give such a statement if G$$ G $$ has sufficiently high minimum degree, and ...
Lior Gishboliner, Eoin Hurley, Yuval Wigderson   +2 more
wiley   +1 more source

Effects on Seidel energy of two special types of graphs by perturbing edges

Kuwait Journal of Science
Let G be a simple undirected graph, and let S(G) be its Seidel matrix. The Seidel energy of G is defined as ES(G)=∑i=1n|λS(G)|, where λS(G),λS(G),…,λS(G) are Seidel eigenvalues of G.
doaj   +1 more source

First Zagreb energy of self-looped graphs: predictive insights into kidney infection drugs and theoretical bounds. [PDF]

Sci Rep
Yashaswini L, Rakshith BR, Nagaraja P.
europepmc   +1 more source

Predicting ecological interactions across space through pairwise integration of latent network patterns

Methods in Ecology and Evolution, Volume 17, Issue 8, Page 2494-2509, August 2026.
Abstract Ecological communities are complex and exhibit considerable spatial variability, presenting challenges in accurately understanding these systems. A primary obstacle in ecological research is the existence of ‘missing links’ between species: inevitable unobserved interactions that limit our comprehension of ecological networks and their ...
Kesem Abramov, Geut Galai, Barry Biton, Rami Puzis, Shai Pilosof   +4 more
wiley   +1 more source

scDEBGCL: a deep embedding approach based on bipartite graph contrastive learning for single-cell RNA-seq data. [PDF]

BMC Biol
Wang J, Ke D, Xia J, Liu A, Su Y, Zheng CH.   +5 more
europepmc   +1 more source

Knowledge Spillover Network and Optimal R&D Policy in Oligopoly

Journal of Public Economic Theory, Volume 28, Issue 4, August 2026.
ABSTRACT This paper studies optimal R&D policy in a Cournot oligopoly with network‐based knowledge spillovers. Generalizing the standard two‐stage model of Kamien et al. (1992), we characterize the socially optimal policy by decomposing the net externality of private innovation into three channels: the market expansion effect, direct knowledge ...
Jun‐Hyung Lee
wiley   +1 more source

Observer-based prescribed-time lag bipartite consensus of nonlinear multi-agent systems under event-triggered mechanism. [PDF]

PLoS One
Tian J, Li T, Zhao X, Wang Y, Hua H, Yan L.   +5 more
europepmc   +1 more source

Global Population Structure and Dynamics of Wheat Powdery Mildew

Molecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT The global movement of pests and pathogens can often be traced to human migratory activities that include the movement of agricultural crops. The causal agent of wheat powdery mildew, the ascomycete fungus Blumeria graminis f. sp. tritici (B. graminis f. sp.
Tim Kloppe, Rebecca B. Whetten, Ignazio Carbone, Christina Cowger   +3 more
wiley   +1 more source