11 citations · 17 across the 30 of their papers we have counts for
Showing 2012 · math.NTShow all
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math.NT2012
Application of Weierstrass units to relative power integral bases
Ho Yun Jung, Ja Kyung Koo, Dong Hwa Shin
Let be an imaginary quadratic field other than and . We construct relative power integral bases between certain abelian extension…
math.NT2012
Some applications of modular units
Ick Sun Eum, Ja Kyung Koo, Dong Hwa Shin
We show that a weakly holomorphic modular function can be written as a sum of modular units of higher level. We further find a necessary and sufficient condition for a Siegel modul…
math.NT2012★ 1 cited
On some theta constants and class fields
Ja Kyung Koo, Dong Hwa Shin
We first find a sufficient condition for a product of theta constants to be a Siegel modular function of a given even level. And, when denotes the ray class field of $K=…