COVID-19 Situation: I am currently working mainly from home. I have no access to my office telephone, and old-fashioned post sent to me at the university is subject to extreme delays. The most reliable way to contact me is by email to....
....preferably from an academic address. The university has strong spam filtering, so if you don't get a reply please consider the possibility that your message didn't reach me. Manchester students should always use their university email account when contacting staff.
For Manchester students, the best way to contact me during termtime is usually to come to my office hour. My office hour for students in Semester 2 of 2020-21 will generally be 9:30-10:30 on Wednesdays (teaching weeks only) on Zoom. If you don't have the Zoom link, please email me from your Manchester email address to request it. It may occasionally be necessary to vary the time; details of any changes will appear here.
I am an editor of the International Journal of Algebra and Computation and am very happy to receive submissions in or near my areas of interest. (Before submitting please make sure your paper is within the journal scope, complies with the submission guidelines and is carefully proofread: papers which are inappropriate for the journal or carelessly prepared will be rejected, however brilliant the mathematics!)
I'm always happy to talk to researchers with similar (or complementary!) interests, so feel free to drop me a line and suggest a visit to Manchester. If your research is likely to be of broad interest to people here then I may also be able to arrange an invitation to give a seminar talk. I have a page of useful information for visitors to Manchester.