Results 171 to 180 of about 43,326 (227)

CHATGPT FOR COMPUTATIONAL TOPOLOGY. [PDF]

open access: yesFound Data Sci
Liu J, Shen L, Wei GW.
europepmc   +1 more source

Enumeration of connected components of acyclic digraph

Journal of Discrete Mathematical Sciences and Cryptography, 2021
We established the concept of a binary reflexive relation of adjacency and determined the algebraic system consisting of all binary relations of set X and all unordered pairs of binary relations in terms of characteristic functions on the set of all ...
K. Al'Dzhabri
semanticscholar   +1 more source

χ-Diperfect Digraphs

Anais do XXXVI Concurso de Teses e Dissertações (CTD 2023), 2022
In 1982, Berge defined the class of χ-diperfect digraphs. A digraph D is χ-diperfect if for every induced subdigraph H of D and every minimum coloring S of H there exists a path P of H with exactly one vertex of each color class of S. Berge also showed examples of non-χ-diperfect orientations of odd cycles and their complements.
Caroline Aparecida de Paula Silva   +2 more
openaire   +1 more source

Congestion recognition for hybrid urban road systems via digraph convolutional network

, 2020
Congestion recognition is the prerequisite for traffic control and management, vehicle routing, and many other applications in intelligent transportation systems.
Xiao Han   +3 more
semanticscholar   +1 more source

Perfect Digraphs

Journal of Graph Theory, 2014
AbstractThe clique number of a digraph D is the size of the largest bidirectionally complete subdigraph of D. D is perfect if, for any induced subdigraph H of D, the dichromatic number defined by Neumann‐Lara (The dichromatic number of a digraph, J. Combin. Theory Ser. B 33 (1982), 265–270) equals the clique number .
Andres, Stephan Dominique   +1 more
openaire   +2 more sources

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