%0 Journal Article %A A. I. Bondal %A I. Yu. Zhdanovskiy %T Theory of homotopes with applications to mutually unbiased bases, harmonic analysis on graphs, and perverse sheaves %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2021 %P 195-259 %V 76 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2021_76_2_a0/ %G en %F RM_2021_76_2_a0