2 papers
math.NT2026
Adelic framed form class groups and explicit class field theory
Ja Kyung Koo, Dong Hwa Shin, Dong Sung Yoon
Let be a negative discriminant, and let . Let denote the set of primitive positive definite binary quadratic forms over of…
math.NT2025
A simplified algorithmic realization of Galois actions on special values of modular functions
Ja Kyung Koo, Dong Hwa Shin, Dong Sung Yoon
We propose an explicit and practical algorithm for computing Galois conjugates and irreducible polynomials for special values of modular functions evaluated at CM points associated…