« first day (1851 days earlier)      last day (2940 days later) » 

SmokeDetector
SmokeDetector
06:00
[ SmokeDetector | MS ] Bad keyword with email in answer: The "functions" of untyped lambda calculus are not (set theoretic) functions so what are they? by Telfer Cronos on math.stackexchange.com
 
4 hours later…
Martin Sleziak
Martin Sleziak
09:44
improve This title seem to have quite big vertical height.
2
Q: About $\prod_{n\in\mathbb Z}\left[{\tanh\Big(\frac{\pi}{2}\sqrt{a^2n^2+ab}\Big)\over\tanh\Big(\frac{\pi}{2}\sqrt{n^2/a^2+b/a}\Big)}\right]^{(-1)^n}=1$

NemoThe infinite product in the title is invariant under the transformation $a\to 1/a$, however it is not a modular form because it is not a periodic function of $a$. Before asking the question one needs to explain some facts about this infinite product. Consider these two propositions If $\cos\frac...

trigonometry special-functions products infinite-product integer-lattices
But I am not sure what would be a reasonable edit to change that. (And I am not even sure to which extent such change is needed.)
 
2 hours later…
SmokeDetector
SmokeDetector
11:24
[ SmokeDetector | MS ] Few unique characters in body: Deleted post Deleted post by cplex on math.stackexchange.com

« first day (1851 days earlier)      last day (2940 days later) »