• 제목/요약/키워드: An Hyang

검색결과 1,560건 처리시간 0.028초

HOMOTOPY FIXED POINT SETS AND ACTIONS ON HOMOGENEOUS SPACES OF p-COMPACT GROUPS

  • Kenshi Ishiguro;Lee, Hyang-Sook
    • 대한수학회지
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    • 제41권6호
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    • pp.1101-1114
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    • 2004
  • We generalize a result of Dror Farjoun and Zabrodsky on the relationship between fixed point sets and homotopy fixed point sets, which is related to the generalized Sullivan Conjecture. As an application, we discuss extension problems considering actions on homogeneous spaces of p-compact groups.

유방의 수질암종의 세침흡인 세포학적 소견 - 1예 보고 - (Fine Needle Aspiration Cytology of Medullary Carcinoma of the Breast - A Case Report)

  • 전이경;고일향
    • 대한세포병리학회지
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    • 제5권1호
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    • pp.57-60
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    • 1994
  • Medullary carcinoma (MC) of the breast is an uncommon histologic form of infiltrating ductal carcinoma and the cytologic features of MC are not well delineated. We recently experienced a case of fine needle aspiration cytology of MC of the breast. The characteristic cytopathologic features were cellular aspirate consisting of large, pleomorphic cells in background of many single to clusters of lymphocytes.

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ON $\phi$(t)-STABILITY FOR THE COMPARISON DIFFERENTIAL SYSTEM

  • Oh, Young-Sun;An, Jeong-Hyang
    • 한국수학교육학회지시리즈B:이론수학과 교직수학
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    • 제4권2호
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    • pp.161-166
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    • 1997
  • We obtained sufficient conditions for $\phi$(t)-stability and uniform $\phi$(t)-stability of the trivial solution of comparison differential system. we also investigated the corresponding stability concepts of the trivial solution of the differential system using the thoery of differential inequlities through cones and the method of conevalued Lyapunov functions.

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ON ASYMPTOTIC STABILITY FOR PERTURBED DIFFERENTIAL EQUATION

  • Oh, Young-Sun;Lee, Jae-Don;An, Jeong-Hyang
    • 한국수학교육학회지시리즈B:이론수학과 교직수학
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    • 제4권2호
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    • pp.167-173
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    • 1997
  • In this paper, we investigated several asymptotic stability properties of the system for the type of dy/dt = $h(t)^{-1}F(t_1, k(t)y(t))$.

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WRC-07 주요 결과 고찰 및 국내 대응 1부

  • 성향숙;이경희;이황재;김경미;이주환;안도섭
    • 정보와 통신
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    • 제25권2호
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    • pp.63-72
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    • 2008
  • 본고에서는 세계전파통신회의(WRC)의 개요 및 역사를 살펴보고,2007년 개최된 WRC 논의 내용 중 위성, 방송, 고정 및 HAPS 분야에 대한 주요 결과 및 그 의미, 국내 파급 효과와 영향 등을 살펴보고자 한다.

Two model comparisons of software reliability analysis for Burr type XII distribution

  • An, Jeong-Hyang
    • Journal of the Korean Data and Information Science Society
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    • 제23권4호
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    • pp.815-823
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    • 2012
  • In this paper reliability growth model in which the operating time between successive failure is a continuous random variable is proposed. This model is for Burr type XII distribution with two parameters which is discussed in two versions: the order statistics and non-homogeneous Poisson process. The two software reliability measures are obtained. The performance for two versions of the suggested model is tested on real data set by U-plot and Y-plot using Kolmogorov distance.