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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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# Category Archives: Vector Bundles

## Monodromy Representations

A departure from directly working with varieties, we’re going to do something that’s strictly topological (at first glance) but which really has deep and important connections with Hodge theory. We’re going to talk about monodromy and monodromy representations. Let be … Continue reading

## B-N-R Part 5: Spectral Curves

Today we’re back to some material from the first post in this series, and going to prove an actual theorem about vector bundles. Next time, we’ll be getting into the heart of the paper, and that may be my last … Continue reading

Posted in Abelian Varieties, Big Theorems, Curves, Vector Bundles
4 Comments

## B-N-R Part 4: Prym Varieties

The last post was on the generalities of Abelian varieties, and constructing a map. This time, we’re going to do it for a specific one, and the maps involved will all be useful later. We start out with a finite … Continue reading

Posted in Abelian Varieties, Big Theorems, Curves, Vector Bundles
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## B-N-R Part 3: PPAV’s and some details

Now, we continue our tour through Beauville, Narasimhan, Ramanan. We’ve talked about Twisted Endomorphisms and we’ve talked about the Generalized Theta Divisor on the Moduli Space of Vector Bundles. So today we’ll talk a bit about Abelian Varieties, Principal Polarizations, … Continue reading

## B-N-R Part 2: Moduli of Vector Bundles

Last time, we talked about twisted endomorphisms. Now, we’re moving on to the second paragraph of the paper: generalized theta divisors. In the meantime, we’re going to have to talk a bit about vector bundles and their moduli.

Posted in Abelian Varieties, Big Theorems, Curves, Vector Bundles
2 Comments

## B-N-R Part 1: Twisted Endomorphisms

Alright, I’m back, and newly married (thus the long hiatus from posting). And now it’s time to get back to math. I’m currently attempting to read a paper by Beauville, Narasimhan and Ramanan titled “Spectral Curves and the Generalized Theta … Continue reading

Posted in Abelian Varieties, Big Theorems, Curves, Vector Bundles
5 Comments