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Koo, Ja-Kyung (구자경)
교수, Department of Mathematical Sciences(수리과학과)
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    NO Title, Author(s) (Publication Title, Volume Issue, Page, Issue Date)
    1
    On the Schertz conjecture

    Koo, Ja-Kyungresearcher; Yoon, Dong Sung, PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY, v.62, no.3, pp.837 - 845, 2019-06

    2
    Generators of Siegel modular function fields of higher genus and level

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong Sung, JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, v.472, no.1, pp.447 - 465, 2019-04

    3
    Form class groups for extended ring class fields

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong Sung, JOURNAL OF NUMBER THEORY, v.197, pp.13 - 36, 2019-04

    4
    Construction of class fields over imaginary biquadratic fields

    Koo, Ja-Kyungresearcher; Yoon, Dong Sung, INDIANA UNIVERSITY MATHEMATICS JOURNAL, v.68, no.2, pp.413 - 434, 2019-04

    5
    Primitive and totally primitive Fricke families with applications (II)

    Jung, Ho Yun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, v.472, no.1, pp.432 - 446, 2019-04

    6
    On a problem of Hasse and Ramachandra

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong Sung, OPEN MATHEMATICS, v.17, pp.131 - 140, 2019-03

    7
    Siegel families with application to class fields

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong-Sung, PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS, v.148, no.4, pp.751 - 771, 2018-08

    8
    Generation of ray class fields modulo 2, 3, 4 or 6 by using the Weber function

    Jung, Ho Yun; Koo, Ja Kyungresearcher; Shin, Dong Hwa, JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, v.55, no.2, pp.343 - 372, 2018-05

    9
    Generation of ring class fields by eta-quotients

    Koo, Ja-Kyungresearcher; Shin, Dong-Hwa; Yoon, Dong-Sung, JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, v.55, no.1, pp.131 - 146, 2018-01

    10
    Primitive and Totally Primitive Fricke Families with Applications

    Jung, Ho Yun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, RESULTS IN MATHEMATICS, v.71, no.3-4, pp.841 - 858, 2017-06

    11
    NORMAL BASES FOR MODULAR FUNCTION FIELDS

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong Sung, BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY, v.95, no.3, pp.384 - 392, 2017-06

    12
    Generators of the ring of weakly holomorphic modular functions for Gamma(1)(N)

    Koo, Ja-Kyungresearcher; Yoon, Dong-Sung, RAMANUJAN JOURNAL, v.42, no.3, pp.583 - 599, 2017-04

    13
    Construction of class fields over cyclotomic fields

    Koo, Ja-Kyungresearcher; Yoon, Dong Sung, KYOTO JOURNAL OF MATHEMATICS, v.56, no.4, pp.803 - 829, 2016-12

    14
    Generation of class fields by using the Weber function

    Koo, Ja-Kyungresearcher; Shin, Dong Hwa; Yoon, Dong Sung, JOURNAL OF NUMBER THEORY, v.167, pp.74 - 87, 2016-10

    15
    On some Fricke families and application to the Lang-Schertz conjecture

    Jung, Ho Yun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS, v.146, no.4, pp.723 - 740, 2016-08

    16
    Some applications of eta-quotients

    Eum, Ick Sun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS, v.146, no.3, pp.565 - 578, 2016-06

    17
    Ring class invariants over imaginary quadratic fields

    Eum, Ick-Sun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, FORUM MATHEMATICUM, v.28, no.2, pp.201 - 217, 2016-03

    18
    SOME APPLICATIONS OF MODULAR UNITS

    Eum, Ick-Sun; Koo, Ja-Kyungresearcher; Shin, Dong Hwa, PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY, v.59, no.1, pp.91 - 106, 2016-02

    19
    Primitive generators of certain class fields

    Eum, Ick-Sun; Koo, Ja Kyungresearcher; Shin, Dong Hwa, JOURNAL OF NUMBER THEORY, v.155, pp.46 - 62, 2015-10

    20
    The Riemann hypothesis and an upper bound of the divisor function for odd integers

    Eum, Ick-Sun; Koo, Ja-Kyungresearcher, JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, v.421, no.1, pp.917 - 924, 2015-01
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