On Area-Universal Quadrangulations
Vol. 25, no. 1, pp. 171-193, 2021. Regular paper.
Abstract We study drawings of plane quadrangulations such that every inner face realizes a prescribed area. A plane graph is area-universal if for every assignment of non-negative weights to the inner faces, there exists a straight-line drawing such that the area of each inner face equals the weight of the face. It has been conjectured that all plane quadrangulations are area-universal. We develop methods to prove area-universality via reduction to the area-universality of related graphs. This allows us to establish area-universality for large classes of plane quadrangulations. In particular, our methods are strong enough to prove area-universality of all plane quadrangulations with up to 13 vertices.

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Submitted: July 2020.
Reviewed: October 2020.
Revised: October 2020.
Accepted: January 2021.
Final: January 2021.
Published: January 2021.
Communicated by Seok-Hee Hong
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