Are there any other online, collaborative, and research level maths databases other than OEIS?
Especially for:
- Integrals;
- Differential equations;
- Infinite series;
- Mathematical constants;
- Diophantine equations.
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$\begingroup$ Should this be a big-list? $\endgroup$– Tyma GaidashCommented yesterday
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$\begingroup$ @TymaGaidash Sorry, I sincerely do not know. $\endgroup$– user50793Commented yesterday
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There are tons of collaborative online databases for mathematics.
I think you want to pay attention to the code4math project, which is organizing "cyberinfrastructure" for mathematics.
There's a link there to mathbases.org which is a nice little database of databases. I searched for "equations", "series" and "constants" but unfortunately did not hit anything. Nevertheless, it seems like if such things exist they should make their way to this site.
In googling for these types of databases, I also ran into
Is there a database/collection of ODEs that are Lipschitz? (differential equations)
https://eqworld.ipmnet.ru/ (diff equations)
https://arxiv.org/abs/1709.01266 (integrals)
Large database of mathematical constants (constants)
https://www.reddit.com/r/math/comments/11q7071/is_there_an_encyclopedia_of_infinite_series_and/ (infinite series)