Differential Geometry Page
Contains several figures which are the result of easy codes using Mathematica, including Enneper's surface.

Riemannian Geometry
A set of postscript lecture notes for a graduate level course on Riemannian geometry.

Riemannian Geometry
Mostly a definition with a few equations.

ArXiv Front: DG Differential Geometry
Differential geometry section of the mathematics e-print arXiv.

John Oprea's Home Page
This site includes references to the author's papers and books, including Differential Geometry and its Applications and The Mathematics of Soap Films: Explorations with Maple. There are also Maple files available for downloading.

The Scientific Graphics Project
This site contains didactic and research information about the differential geometry of minimal and constant-mean-curvature surfaces. It also addresses their application in materials science. It is full of illustrations and animations, and also contains software for research use.

Alfred Gray Differental Geometry
Graphics of suface geometry. Mathematica code and gallery of images.

Finite Canonical Commutation Relations
A working paper on FCCR nxn matrices as local kinematical replacement for CCR, and representations by pxp matrices over Galois fields.

Differential Geometry
Lecture notes for a course at the Weizmann Institute of Science by Sergei Yakovenko. Chapters in DVI.

Classical Curve Theory and Frenet Equations
A systematic overview of classical curve theory, including Frenet equations and their known solutions, some results on moving frames (relationship between Frenet and Bishop Frame), spherical curves and surface curves.

Non-Commutative Geometry
A short historical review is made of some recent literature in the field of noncommutative geometry