I am a lecturer in the School of Mathematics at Trinity College, Dublin. My office is number 0.9 at 18 Westland Row. The telephone number is +353-1-896 2898. Mail can be addressed to

John Stalker
School of Mathematics, TCD
Dublin 2, IRELAND

and e-mail addressed to

Note that I cannot currently visit my office due to Covid restrictions, so email is currently the only reliable way to contact me.