### About this blog

Rigorous trivialities is a web log about mathematics, but especially geometry, broadly construed. Contributors will be Charles Siegel, Jim Stankewicz and occasionally Matt Deland. Charles specializes in algebraic geometry, topology and mathematical physics. Jim specializes in arithmetic algebraic geometry. Matt has transitioned from algebraic geometry to work in industry.

Header is taken from the larger work by fdecomite under the creative commons license.

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# Monthly Archives: June 2009

## The Grothendieck-Riemann-Roch Theorem, a proof-sketch

By this time I’m sure everyone whose curiousity was piqued by the statement of the Grothendieck-Riemann-Roch theorem has read it themselves. Nevertheless, in case you haven’t, I will proceed to outline the steps of the surprisingly “easy” proof. It is … Continue reading

Posted in Algebraic Geometry, Big Theorems, Cohomology
5 Comments

## Summer School: Day 1

As I mentioned, I’m participating in a summer school on the Geometry of Quantum Fields at Penn. I’m in Katrin Wendland’s mentoring session this week, which means conformal fields and vertex algebras.

Posted in Uncategorized
3 Comments

## The next two weeks

I know I’ve been fairly bad about posting recently. Started teaching my first course. But that SHOULD end on Monday. Not the course, the silence. That’s when the Geometry of Quantum Fields summer school starts here at Penn. For the … Continue reading

Posted in Uncategorized
1 Comment