Equal? Different! The Mathematician's Shoppe

The virtual leaflets are the posters of the exhibition "Equal? Different!".

The exhibition explores the concept of equality (and accordingly of classification) in various areas of Mathematics. After an initial presentation we have the Erlangen programme, the projective geometry, the classification of algebraic surfaces (I and II), the classification of topological surfaces (I and II), the classification of mosaics and finally an odd problem of classification about plane poligons.