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Videos linked to cohomolgyMore +
![A family of $\phi$-congruence subgroups of the modular group]()
55:18published on December 3, 2025A family of $\phi$-congruence subgroups of the modular group
By Angelica Babei
![Introduction to PARI/GP for Explicit Number Theory and Lattices]()
01:42:24published on December 3, 2025Introduction to PARI/GP for Explicit Number Theory and Lattices
By Bill Allombert
