Results 161 to 170 of about 187,749 (326)
Extremal graph theory: Ramsey-Turán numbers, chromatic thresholds, and minors [PDF]
, 2011 This dissertation investigates several questions in extremal graph theory and the theory of graph minors. It consists of three independent parts; the first two parts focus on questions motivated by Turan's Theorem and the third part investigates a ...
Lenz, John E.
core
RNA‐centric world of retroviruses: unravelling the molecular strategies of genomic RNA packaging
Biological Reviews, EarlyView.ABSTRACT Retroviruses constitute a unique group of RNA viruses that have profoundly influenced both evolutionary trajectories and biomedical research. Their ability to reverse transcribe and integrate into host genomes has shaped genomic architecture across species and contributed to our understanding of oncogenes, gene regulation, and RNA biology ...
Mohammad Abdullah Jehad +5 more
wiley +1 more source
Maximal Unicyclic Graphs With Respect to New Atom-bond Connectivity Index
Acta Chimica Slovenica, 2013 The concept of atom-bond connectivity (ABC) index was introduced in the chemical graph theory in 1998. The atom-bond connectivity (ABC) index of a graph G defined as (see formula in text) where E(G) is the edge set and di is the degree of vertex v(i) of
Kinkar Ch. Das, Kexiang Xu, Ante Graovac
doaj
Smart Cities Leading the Green Transition: Linking Open Innovation and Entrepreneurial Dynamics
Business Strategy and the Environment, EarlyView.ABSTRACT Smart cities today are vibrant spaces where technology, collaboration, and sustainability come together to shape a better future. The green transition in cities is not just about building greener infrastructure or cutting emissions. It also changes how people, institutions, and businesses think and act.
Filippo Marchesani, Nabila Abid
wiley +1 more source
Chemie Ingenieur Technik, EarlyView.This work explores generative AI for automated revision of Piping and Instrumentation Diagrams (P&IDs). We frame P&ID correction as a translation problem, converting attributed P&ID graphs into sequences and learning revisions with a transformer‐based model.
Lukas Schulze Balhorn +5 more
wiley +1 more source
MLRQ: an efficient labeling scheme for reachability queries on reduced DAGs
Journal of King Saud University: Computer and Information SciencesAnswering reachability queries is a fundamental operation in graph theory. Existing methods either build an index for partial reachability, which may lead to costly graph traversal during query processing, or construct an index for complete reachability,
Haiyan Zhang +2 more
doaj +1 more source
Parallel O(log(n)) time edge-colouring of trees and Halin graphs [PDF]
We present parallel O(log(n))-time algorithms for optimal edge colouring of trees and Halin graphs with n processors on a a parallel random access machine without write conflicts (P-RAM).
Gibbons, Alan (Alan M.) +2 more
core
Degree Ramsey theory, game and Roman domination, and game saturation in graphs [PDF]
, 2012 "We examine several problems in extremal graph theory, emphasizing problems involving games on graphs. In Chapter 2, we study a variant of Ramsey theory, seeking Ramsey hosts with small maximum degree. We focus on finding such hosts for trees and cycles.
Kinnersley, William
core
Clathrate hydrate crystallization
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley +1 more source
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Canadian Journal of Statistics, EarlyView.Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source