Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Ja-Kyung Koo"'
Publikováno v:
Mathematika. 68:535-564
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2cb8dfd6a3ad3c00dd446347839dc83
https://doi.org/10.1112/mtk.12141
https://doi.org/10.1112/mtk.12141
Autor:
Yun Jung Choi, Jeong Han Kim, Ja Kyung Koo, Cho I Lee, Ji Young Lee, Jae Hoon Yang, Soon Young Ko, Won Hyeok Choe, So Young Kwon, Chang Hong Lee
Publikováno v:
Clinical and Molecular Hepatology, Vol 20, Iss 2, Pp 185-191 (2014)
Background/AimsA revised classification system for renal dysfunction in patients with cirrhosis was proposed by the Acute Dialysis Quality Initiative and the International Ascites Club Working Group in 2011. The aim of this study was to determine the
Externí odkaz:
https://doaj.org/article/e8d2bf6e533d48048f6a6b02aff906ae
Autor:
Jun Jae Kim, Jeong Han Kim, Ja Kyung Koo, Yun Jung Choi, Soon Young Ko, Won Hyeok Choe, So Young Kwon
Publikováno v:
Clinical and Molecular Hepatology, Vol 20, Iss 1, Pp 47-55 (2014)
Background/AimsThe modification of the Model for End-Stage Liver Disease (MELD) scoring system (Refit MELD) and the modification of MELD-Na (Refit MELDNa), which optimized the MELD coefficients, were published in 2011. We aimed to validate the superi
Externí odkaz:
https://doaj.org/article/98492b022ebc48478820d87c174d228e
Publikováno v:
Open Mathematics, Vol 18, Iss 1, Pp 1915-1934 (2020)
Let K be an imaginary quadratic field of discriminant dK{d}_{K} with ring of integers OK{{\mathcal{O}}}_{K}, and let τK{\tau }_{K} be an element of the complex upper half plane so that OK=[τK,1]{{\mathcal{O}}}_{K}={[}{\tau }_{K},1]. For a positive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a672854de43ab425a91036eb7b87473
https://doaj.org/article/fa0c853ff8af42769c3156d02e5c0e97
https://doaj.org/article/fa0c853ff8af42769c3156d02e5c0e97
Publikováno v:
The Ramanujan Journal. 54:261-284
We first construct Siegel invariants of some CM-fields in terms of special values of theta constants, which would be a generalization of Siegel-Ramachandra invariants of imaginary quadratic fields. And, we further describe Galois actions on these inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b77fe1e3aaf3a4d098c5d99b579fc8c
https://doi.org/10.1007/s11139-019-00223-3
https://doi.org/10.1007/s11139-019-00223-3
Publikováno v:
Journal of Number Theory. 197:13-36
Let L be an extended ring class field of an imaginary quadratic field K other than Q ( − 1 ) and Q ( − 3 ) . We show that there is a form class group induced from a congruence subgroup which describes the Galois group of L over K in a concrete wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1745b976a731b45e31a5e42f4b2c9705
https://doi.org/10.1016/j.jnt.2018.06.011
https://doi.org/10.1016/j.jnt.2018.06.011
Publikováno v:
Journal of Mathematical Analysis and Applications. 472:447-465
For positive integers g and N, let F N ( g ) be the field of meromorphic Siegel modular functions of genus g and level N whose Fourier coefficients belong to the Nth cyclotomic field. We present explicit generators of F N ( g ) over F 1 ( g ) in term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5a8ae783b1b46add99d1afecde6b71b
https://doi.org/10.1016/j.jmaa.2018.11.034
https://doi.org/10.1016/j.jmaa.2018.11.034
Publikováno v:
Open Mathematics, Vol 17, Iss 1, Pp 131-140 (2019)
Let $K$ be an imaginary quadratic field, and let $\mathfrak{f}$ be a nontrivial integral ideal of $K$. Hasse and Ramachandra asked whether the ray class field of $K$ modulo $\mathfrak{f}$ can be generated by a single value of the Weber function. We c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79fad823ba47d6e0179574c8e0f7f89f
https://doi.org/10.1515/math-2019-0013
https://doi.org/10.1515/math-2019-0013
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 148:751-771
We investigate certain families of meromorphic Siegel modular functions on which Galois groups act in a natural way. By using Shimura's reciprocity law we construct some algebraic numbers in the ray class fields of CM-fields in terms of special value
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f8de538aa85a7ead614d7b4595c8cc2
https://doi.org/10.1017/s030821051700052x
https://doi.org/10.1017/s030821051700052x
Autor:
Dong Sung Yoon, Ja Kyung Koo
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 147:781-812
We first generate ray class fields over imaginary quadratic fields in terms ofSiegel-Ramachandra invariants, which would be an extension of Schertz’s result[12]. And, by making use of quotients of Siegel-Ramachandra invariants we alsoconstruct r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e40bbee0febc312ef622ac2a23c48c54
https://doi.org/10.1017/s0308210516000263
https://doi.org/10.1017/s0308210516000263