Sorry for the long silence. I’ve been working on learning about Hopf-Galois extensions of ( and )-ring spectra. I’ve got some ideas, and I’ve written them down in the following set of preliminary notes: 197 more words

## Tags » K-theory

#### Some handwritten notes

For those who celebrate thanksgiving, happy thanksgiving! So I’ve been thinking about my strange result that . Here are some handwritten notes on the same (and some other things). 39 more words

#### Some new additions

I’ve added some more interesting things to my paper: K-theory and Morita Theory.

I was downloading *Higher Algebra* from Lurie’s website, and I saw that he’s written up something new, about the rotation invariance of K-theory! 21 more words

#### Topological K-theory of C*-algebras for the Working Mathematician - Lecture 2 (Definitions and core examples)

This is a write-up of the second lecture in the course given by Haim Schochet. For the first lecture and explanations, see the previous post… 2,185 more words

#### Recollections

A weird and sentimental title, I know. But I’ve decided to take up everything that I’ve ever thought about the K-theory of module -operads into one PDF file, which I’ve put into this post, which will be continually updated. 52 more words

#### Topological K-theory of C*-algebras for the Working Mathematician - Lecture 1

Claude (Haim) Schochet is spending this semester at the Technion, and he kindly agreed to give a series of lectures on K-theory. This mini-course is called “Topological K-theory of C*-algebras for the Working Mathematician”. 3,342 more words