Results 221 to 230 of about 34,455 (233)

Strategizing towards the future hospital: a systems thinking approach. [PDF]

open access: yesHealth Res Policy Syst
Kumar A   +6 more
europepmc   +1 more source

Homology of Digraphs

Mathematical Notes, 2021
A theory of singular cubic homology of digraphs is developed; the obtained homology groups are proved to be functorial and homotopy invariant. Commutative diagrams of exact sequences similar to the classical ones are constructed, and a relationship between the cubic homology and the path homology of a digraph is described.
Rolando Jimenez   +3 more
openaire   +2 more sources

Regular Digraphs Containing a Given Digraph

Canadian Mathematical Bulletin, 1984
AbstractLet the maximum degree d of a digraph D be the maximum of the set of all outdegrees and indegrees of the points of D. We prove that every digraph D of order P and maximum degree d has a d-regular superdigraph H with at most d + 1 more points, and that this bound, which is independent of p, is best possible.
Frank Harary, Razmik Karabed
openaire   +2 more sources

Training digraphs

Information Processing Letters, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carl H. Smith, Hsieh-Chang Tu
openaire   +2 more sources

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