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TRANSFORMATION OF LOCAL BIFURCATIONS UNDER COLLOCATION METHODS
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  • TRANSFORMATION OF LOCAL BIFURCATIONS UNDER COLLOCATION METHODS
  • TRANSFORMATION OF LOCAL BIFURCATIONS UNDER COLLOCATION METHODS
저자명
Foster. Andrew,Khumalo. Melusi
간행물명
Journal of the Korean Mathematical Society
권/호정보
2011년|48권 6호|pp.1101-1123 (23 pages)
발행정보
대한수학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Numerical schemes are routinely used to predict the behavior of continuous dynamical systems. All such schemes transform flows into maps, which can possess dynamical behavior deviating from their continuous counterparts. Here the common bifurcations of scalar dynamical systems are transformed under a class of algorithms known as linearized one-point collocation methods. Through the use of normal forms, we prove that each such bifurcation in an originating flow gives rise to an exactly corresponding one in its discretization. The conditions for spurious period doubling behavior under this class of algorithm are derived. We discuss the global behavioral consequences of a singular set induced by the discretizing methods, including loss of monotonicity of solutions, intermittency, and distortion of attractor basins.