Extensions of theorems of Rattray and Makeev

Pavle V. M. Blagojević, Roman Karasev


We consider extensions of the Rattray theorem and two Makeev's theorems, showing that they hold for several maps, measures, or functions simultaneously,
when we consider orthonormal $k$-frames in $\mathbb{R}^n$ instead of orthonormal bases (full frames).

We also present new results on simultaneous partition of several measures into parts by $k$ mutually orthogonal hyperplanes.

In the case $k=2$ we relate the Rattray and Makeev type results with the well known embedding problem for projective spaces.


Rattray's theorem; measure partition; Borsuk-Ulam type theorems

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