• Title/Summary/Keyword: Kobayashi

Search Result 511, Processing Time 0.024 seconds

ON THE HIGHER ORDER KOBAYASHI METRICS

  • KIM, JONG JIN;HWANG, IN GYU;KIM, JEONG GYUN;LEE, JEONG SEUNG
    • Honam Mathematical Journal
    • /
    • v.26 no.4
    • /
    • pp.549-557
    • /
    • 2004
  • In this paper, we prove the product property and the existence of an extremal analytic disc relative to the higher order Kobayashi metric. Also by making use of the upper semicontinuity of the higher order Kobayashi metric, we introduce a pseudodistance and investigate some properties of that pseudodistance related to the usual Kobayashi metric.

  • PDF

Power Allocation of Private and Common Information using Han-Kobayashi Scheme in Interference Channels (간섭 채널에서 Han-Kobayashi 방식의 개인신호와 공용신호의 전력 할당)

  • Paek, Du-Jin;Park, Dae-Young
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.35 no.11A
    • /
    • pp.1038-1044
    • /
    • 2010
  • Interference may severely deteriorate performance in wireless communication. Han-Kobayashi scheme splits each user's signal into private and common information so that the receiver removes the other's common signal for partial interference cancellation. This paper proposes an optimal power allocation to private and common signals for Han-Kobayashi scheme by using required SNR in a private information only system. Numerical results show that the proposed power allocation is quite close to the optimal power allocation based on exhaustive searches.

Reexamination of Five Caddisfly Species (Trichoptera, Insecta) Recorded from South Korea by Kobayashi (1989)

  • Nozaki, Takao;Park, Sun-Jin;Kong, Dongsoo
    • Animal Systematics, Evolution and Diversity
    • /
    • v.35 no.1
    • /
    • pp.1-5
    • /
    • 2019
  • The specimens of caddisflies previously recorded as Sortosa distincta (Walker, 1852), Rhyacophila uchidai Kobayashi, 1989, Rhyacophila jirisana Kobayashi, 1989, Crunobiodes koriaensis Kobayashi, 1989, and Ganonema odaenum Kobayashi, 1989 from South Korea were reexamined. Rhyacophila uchidai and R. jirisana are newly synonymized with R. retracta Martynov, 1914 and R. vicina Botosaneanu, 1970, respectively. We reconfirm two synonyms, C. koriaensis with Lepidostoma sinuatum (Martynov, 1935) and G. odaenum with Psilotreta locumtenens Botosaneanu, 1970, and a misidentification of Dolophilodes affinis Levanidova and Arefina, 1996 as S. distincta. Some specimens recorded as G. odaenum are identified as Psilotreta falcula Botosaneanu, 1970.

ON THE HIGHER ORDER KOBAYASHI METRICS

  • KIM, JONG JIN;KIM, JEONG KYUN;LEE, JEONG SEUNG
    • Honam Mathematical Journal
    • /
    • v.28 no.4
    • /
    • pp.513-520
    • /
    • 2006
  • The purpose of this note is to prove some properties related to the higher order Kobayashi metrics(resp. pseudodistances) as the counterpart for the usual Kobayashi metrics(resp. pseudo distances).

  • PDF

The Analysis of Emotion Adjective for LED Light Colors by using Kobayashi scale and I.R.I scale (Kobayashi 스케일과 I.R.I 스케일을 사용한 LED 광색의 형용사 이미지 분석)

  • Baek, Chang-Hwan;Park, Seung-Ok;Kim, Hong-Suk
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.25 no.10
    • /
    • pp.1-13
    • /
    • 2011
  • The aim of this study is to analyze the emotion adjectives for light emitting diode(LED) light colors using a twofold adjective image scales from Kobayashi and I.R.I. A set of psychophysical experiments using category judgment was conducted in an LED light color simulation system, in order to evaluate each emotion scale coordinate for those test light colors in both adjective image scales. In total, 49 test light colors from a combination of 6 color series were assessed by 15 human observers. As a result, Kobayashi adjective image scale clearly expressed to emotion adjectives of 'Dynamic', 'Casual', 'Chic', 'Cool-casual', 'Modern', and 'Natural' for different hues. In contrast, I.R.I adjective image scale expressed only 2 adjectives of 'dynamic' and 'luxurious' for the all hues.

THE BOUNDARY BEHAVIOR BETWEEN THE KOBAYASHI-ROYDEN AND CARATHÉODORY METRICS ON STRONGLY PSEUDOCONVEX DOMAIN IN ℂn

  • KIM, JONG JIN;PARK, SUNG HEE
    • Honam Mathematical Journal
    • /
    • v.19 no.1
    • /
    • pp.81-86
    • /
    • 1997
  • The aim of this paper is to prove the boundary behavior between the Caratheodory and Kobayashi-Royden metrics in a strongly pseudoconvex bounded domain with $C^2$-boundary in $\mathbb{C}^n$ and to show that the converse does not holds. S. Venturini([Ven]) proved the corresponding result with distances in place of the infinitesimal metrics.

  • PDF

INVARIANT METRICS AND COMPLETENESS

  • Pflug, Peter
    • Journal of the Korean Mathematical Society
    • /
    • v.37 no.2
    • /
    • pp.269-284
    • /
    • 2000
  • We discuss completeness with respect to the Caratheodory distance, the Kobayashi distance and the Beraman distance, respectively.

  • PDF