阪南大学学術リポジトリ
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Perhaps the most significant result describing planar graphs as intersection graphs of curves is the recent proof of Scheinerman’s conjecture that all planar graphs are segment
We show that a discrete fixed point theorem of Eilenberg is equivalent to the restriction of the contraction principle to the class of non-Archimedean bounded metric spaces.. We
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It is also known that every internally triconnected plane graph has a grid drawing of size (n − 1) × (n − 2) in which all inner facial cycles are drawn as convex polygons although
So far, most spectral and analytic properties mirror of M Z 0 those of periodic Schr¨odinger operators, but there are two important differences: (i) M 0 is not bounded from below
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