Databases

• Catalogue of Mathematical Datasets

• Fanography

• A Database for Number Fields

• The Automorphic Project

• The Stacks Project

• Kerodon—an online resource for homotopy-coherent mathematics

• MAGMA computer

• The L-functions and Modular Forms Database (LMFDB)

• GroupNames.org is a database, under construction, of names, extensions, properties and character tables of finite groups of small order. Currently, it includes all 16309 finite groups that have order ≤500 and not 256 or 384.

• Number fields

• Elliptic Curve Data

• Database of Ring Theory

• Atlas of Lie Groups and Representations

• GAP

• The On-Line Encyclopedia of Integer Sequences (OEIS)

• The symmetric functions catalog An overview of symmetric functions and related topics

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Online References

• Automorphic Forms Online References
• Notes on Geometric Langlands

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Tools

• quiver The best commutative diagram drawing tool ever!
• TeXmacs GNU TeXmacs is a free scientific editing platform designed to create beautiful technical documents using a wysiwyg interface.
• Mathpix Snip Useful tool suitable for converting images and PDFs to LaTeX, DOCX, Overleaf, Markdown, Excel, ChemDraw and more.
• 科研通 完全免费的文献互助平台，具备全网最快的应助速度，最高的求助完成率。
• Researcher