Current

CoCalc - Collaborative Calculation in the Cloud

Mathematics

SageMath - open source mathematical software
Prime Numbers and the Riemann Hypothesis
Papers
Books
Talks
Courses
Students
The 2013 Jenks Prize for Excellence in Software Engineering applied to Computer Algebra
Student projects
The Modular forms database
The L-functions, modular forms, and friends database
Computer hardware
Software -- Sage: Creating a Viable Free Open Source Alternative to Magma, Maple, Mathematica and Matlab
Grant proposals

Other

Personal Info
Old job applications
Photos and Video
Grothendieck
Gadgets
Vert skateboard ramps