We study the Blaschke-Santaló diagram associated to the area, the perimeter, and the moment of inertia. We work in dimension 2, under two assumptions on the shapes: convexity and the presence of two orthogonal axes of symmetry. We discuss topological and geometrical properties of the diagram. As a by-product we address a conjecture by Pólya, in the simplified setting of double symmetry.

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Ilaria Lucardesi

(1) Dip. di Matematica e Informatica "Ulisse Dini", University of Florence, Italy
(2) Dip. di Matematica, University of Pisa, Pisa, Italy

ilaria.lucardesi@unipi.it

R. Gastaldello, A. Henrot, I. Lucardesi. “About the Blaschke-Santaló Diagram of Area, Perimeter and Moment of Inertia.” Journal of Convex Analysis 31 (2024), No. 2, 563–602.