Avraham (Rami) Aizenbud 
אברהם (רמי) איזנבוד 










Images Number of real solutions of cubic equations Action of sl2 on the upper half plain Animations Volume of a preimage of a short interval w.r.t. a polynomial [pdf animation, gif (2d), gif (3d)] How to make a circle from a square by piecewise linearconformal map? [pdf animation, matlab code] paradoxical decomposition of F_{2} [pdf animation, gif] The orientation double cover of the mobius strip [webm] The fundamental theorem of algebra [pdf animation] QuasiAnimations Continued fractions[Golden ratio, e, pi, sqrt(2), 15/4] Building with a compass and a ruler [pdf animation, matlab code] 3d models You can use online viewer for the stl files. For the wrl one have to install an application Graph of the Riemann zeta function [wrl] Möbius band with round boundary [stl] Number of real solutions of cubic equations (3d)[wrl] A fan of complete nonprojective toric variety [stl] Orbits of the adjoint action of SL2(R) [stl] 