**19 jul 2018 - 31 jul 2018**

Lizzano in Belvedere (BO), Italy

A diffiety is a geometrical object that properly formalizes the concept of the solution space of a given system of (nonlinear) PDEs, much as an algebraic variety does with respect to solutions of a given system of algebraic equations. Secondary Calculus is a natural diffiety analogue of the standard calculus on smooth manifolds, and as such leads to a very rich general theory of nonlinear PDEs. Moreover, it appears to be a natural language for quantum physics, just as the standard calculus is the natural language for classical physics.

**Organizers:**
Romolo Marchioni, Rita Riccioni, Luca Vitagliano.

**Speakers:**
Alexandre Vinogradov, Luca Vitagliano.