http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Kazuaki Taira (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
INTRODUCTION TO DIFFUSIVE LOGISTIC EQUATIONS IN POPULATION DYNAMICS
Kazuaki Taira 한국전산응용수학회 2002 Journal of applied mathematics & informatics Vol.9 No.2
The purpose of this paper is to provide a careful and accessible expositionof diffusive logistic equations with indefinite weights which modelpopulation dynamics in environments with strong spatial heterogeneity. Weprove that the most favorable situations will occur if there is a relativelylarge favorable region (with good resources and without crowding effects)located some distance away from the boundary of the environment. Moreoverwe prove that a population will grow exponentially until limited by lack ofavailable resources if the diffusion rate is below some critical value; thisidea is generally credited to Thomas Malthus. On the other hand, if thediffusion rate is above this critical value, then the model obeys thelogistic equation introduced by P. F. Verhulst.
-
INTRODUCTION TO DIFFUSIVE LOGISTIC EQUATIONS IN POPULATION DYNAMICS
Taira, Kazuaki 한국전산응용수학회 2002 The Korean journal of computational & applied math Vol.9 No.2
The purpose of this paper is to provide a careful and accessible exposition of diffusive logistic equations with indefinite weights which model population dynamics in environments with strong spatial heterogeneity. We prove that the most favorable situations will occur if there is a relatively large favorable region (with good resources and without crowding effects) located some distance away from the boundary of the environment. Moreover we prove that a population will grow exponentially until limited by lack of available resources if the diffusion rate is below some critical value; this idea is generally credited to Thomas Malthus. On the other hand, if the diffusion rate is above this critical value, then the model obeys the logistic equation introduced by P. F. Verhulst .
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
