On dual conformal invariants, with explicit examples for processes with 4 and 6 external quanta.

On Gram momentum invariants, with explicit details on the invariants for working with 2 and 3 quanta.

Some results regarding threshold and pseudothreshold values.

On Mandelstam momentum invariants, with specific details on invariants for working with 2, 3, and 4 quanta.

Some references on work worth following.

A list of possible topics to discuss during an informal seminar at Wesleyan University

On preparing to give a colloquium at Wesleyan University.

An observation regarding Lagrangians and Hamiltonians.

The program on scattering amplitudes at the Simons Center for Geometry and Physics is still going on with a great set of talks so far.

On some of the 2014 APS prizes.