31,473 reputation
379128
bio website
location
age
visits member for 4 years, 8 months
seen 25 mins ago

English is not my native tongue. German is not my native tongue. French is not my native tongue.


19m
comment I discovered something, what do I do?
Making a mathematical discovery usually presumes familiarity with the subject, in particular knowing the names of some experts in that area. I recommend that you contact some experts by email (you can find the email addresses of authors at the end of a mathematical paper), who will tell you if your result is really new and worth publishing. The canonical route, by the way, is to simply submit to a journal whose editors then assign the manuscript to a professional referee. So even if you cannot contact anybody, you will get feedback on your work.
23h
comment Segal's 1999 Stanford lecture notes on TQFT, where to find them?
@ShahroozJanbaz: At archive.org you enter the old link and you get the archived link by the system. More precisely, you can go back in time, so there are several archived links.
23h
revised Segal's 1999 Stanford lecture notes on TQFT, where to find them?
edited title
1d
revised Sums of reciprocals involving divisor sums
deleted 11 characters in body; edited tags
1d
revised Need an explanation of a deduction
added 41 characters in body
1d
revised Need an explanation of a deduction
edited title
1d
answered Need an explanation of a deduction
1d
revised Laplace-Beltrami and averaging
added 9 characters in body
1d
awarded  Nice Answer
2d
revised Number of distinct factors
added 8 characters in body
2d
answered Number of distinct factors
2d
revised Number of distinct factors
edited tags
2d
awarded  Nice Answer
2d
revised If the Riemann Hypothesis fails, must it fail infinitely often?
edited tags
2d
awarded  Enlightened
2d
awarded  Nice Answer
2d
revised is this formula correct
added 329 characters in body
2d
comment is this formula correct
@GeraldEdgar: I think he did not learn properly the chain rule for several variables.
2d
comment is this formula correct
I answered your question below. Note that this site is for research level questions. For general questions in mathematics see math.stackexchange.com
2d
answered is this formula correct