Home Page of N. Christopher Phillips

(This page will always be under construction, and is updated at irregular intervals. Please bear with me.)

Welcome to my Home Page!

During the Winter Quarter 2024, I am teaching Math 617, Math 685, and a reading course on K-theory.

During the Spring Quarter 2023, I am taught Math 253.

During the Fall Quarter 2022, I taught Math 684.

During the Winter Quarter 2023, I taught Math 691 (K-theory) and Math 685. Math 685 is a continuation of Math 684, and will use the same course home page.

Notes on crossed product C*-algebras and minimal dynamics. This version has been submitted for publication, but still contains misprints (probably many misprints).

Shanghai short course on crossed products by finite group actions on C*-algebras (11--20 July 2016).

Wyoming short course on large subalgebras and the structure of crossed products. Slides and a draft of the lecture notes are posted.

Shanghai short course on crossed products by finite group actions on C*-algebras (26--30 July 2014).

Summary of results on L^p operator algebras which "look like" C*-algebras (GPOTS 2014) (pdf)

Block "scientific spammers" with the Scientific Spam DNSBL. It should, for example, block many of the predatory open access "journals". See lists of publishers, journals part 1 (apparently standalone; includes hijackers of legitimate journals), journals part 2 (apparently standalone; includes hijackers of legitimate journals), which pretend to be real journals but will publish almost anything (even "papers" generated at random by a computer) if paid a high fee. (The original version was Beall's list; unfortunately no longer maintained; original location. A later version was here, but the links no longer work: publishers, individual journals (apparently standalone), and "hijacked journals". People maintaining such lists have trouble because of the lack of resources to defend themselves against malicious lawsuits.) To request that the University of Oregon implement the Scientific Spam DNSBL, email techdesk@uoregon.edu.


I am a Professor in the Mathematics Department at the University of Oregon. My research specialty is operator algebras. I maintain an operator algebraist email directory, whose updates carry announcements of interest to operator algebraists, and a page of WWW operator algebra resources. I also maintain several web pages with information for people attending conferences at the Mathematics Department at the University of Oregon; details here.

During the winter quarter 2014, I was at the University of Toronto, where I taught a course on crossed products of C*-algebras and Banach algebras.

I remain involved with the organization of the West Coast Operator Algebra Seminars (WCOAS).

Here are the locations of the next several: Sign up for future information by joining the WCOAS confirmed opt-in mailing list.

RIMS Winter School lectures.

CRM course.

Slides from my talk "Towards the classification of outer actions of finite groups on Kirchberg algebras" at the Centre de Recerca Matematica, Universitat Autonoma de Barcelona, June 2011.

Slides from my talk "Strict comparison for crossed products by free minimal actions of Z^d" at the Research Institute for Mathematical Sciences, Kyoto University, September 2011.

In June 2009, I gave a one week course on crossed product C*-algebras, at the International Summer School on Operator Algebras and Applications in Lisbon, Portugal. A draft of a related set of lecture notes is available on the course page.

Lectures at the Shanghai Special Week on Operator Algebras.

In December 2009, I gave a short course on crossed product C*-algebras, Seoul National University. A draft of a related set of lecture notes is available on the course page, and files of the slides used have been posted there.

Current interest: Examples of "quasilegitimate" spammers (real organizations or selling otherwise legitimate products) who ought to be blocked.

Links (to be expanded in the future):


N. Christopher Phillips
Department of Mathematics
University of Oregon
Eugene OR 97403-1222
U.S.A.
Phone: 541-346-4714
Email me.

Normally, I read plain text (US 7 bit ASCII) only. In particular:

Last significant change: 27 September 2020. (Changes to the list of other links at the bottom are not considered "significant".)