sci.math.research - join
Discussion of current mathematical research. (Moderated)
Low activity, 2536 subscribers, Usenet

sci.logic - join
Logic -- math, philosophy & computational aspects.
High activity, 2265 subscribers, Usenet

sci.math.num-analysis - join
Numerical Analysis.
Medium activity, 3858 subscribers, Usenet

alt.math - join
Low activity, 734 subscribers, Usenet

sci.math.symbolic - join
Symbolic algebra discussion.
Low activity, 1044 subscribers, Usenet

alt.math.undergrad - join
Medium activity, 1404 subscribers, Usenet

comp.theory - join
Theoretical Computer Science.
Low activity, 2268 subscribers, Usenet

alt.math.recreational - join
Low activity, 492 subscribers, Usenet

sci.stat.math - join
Statistics from a strictly mathematical viewpoint.
Medium activity, 2545 subscribers, Usenet

sci.crypt - join
Different methods of data en/decryption.
High activity, 2527 subscribers, Usenet