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- W4377007189 abstract "The interval function and the induced path function are two well studied class of set functions of a connected graph having interesting properties and applications to convexity, metric graph theory. Both these functions can be framed as special instances of a general set function termed as a transit function defined on the Cartesian product of a non-empty set (V) to the power set of (V) satisfying the expansive, symmetric and idempotent axioms. In this paper, we propose a set of independent first order betweenness axioms on an arbitrary transit function and provide characterization of the interval function of Ptolemaic graphs and the induced path function of chordal graphs in terms of an arbitrary transit function. This in turn gives new characterizations of the Ptolemaic and chordal graphs." @default.
- W4377007189 created "2023-05-19" @default.
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- W4377007189 date "2023-01-01" @default.
- W4377007189 modified "2023-10-03" @default.
- W4377007189 title "Axiomatic characterizations of Ptolemaic and chordal graphs" @default.
- W4377007189 doi "https://doi.org/10.7494/opmath.2023.43.3.393" @default.
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