# Contents

## Idea

The term $\mathcal{D}$-geometry refers to a synthetic formulation of differential geometry with a focus on the geometry of de Rham spaces. A quasicoherent sheaf of modules over a de Rham space is called a D-module, short for module over the algebra of differential operators, which is where the term “D-geometry” derives from.

## References

• Jacob Lurie, Notes on crystals and algebraic $\mathcal{D}$-modules (pdf)

Revised on April 21, 2014 06:29:39 by Mike Shulman (108.247.151.163)