Comparison of Euler scheme and Milstein scheme for stochastic differential equations확률미분방정식의 해법을 위한 오일러 기법과 밀스타인 기법의 비교

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The solutions of stochastic differential equations(SDEs) are given by stochastic processes. These are two well-known numerical schemes for solving SDEs, the Euler scheme and the Milstein scheme. They are based on Ito integrals and stochastic Taylor expansions. Assuming that stochastic numerical solutions converge to theoretical solution, we define the strong convergence type and say that the stochastic numerical schemes converge to solution with strong order $\gamma$. The Euler scheme converges with strong order 0.5 and the Milstein scheme converges with strong order 1. In general, asset price model which is following SDE, $dX_t = \mu X_tdt + σ X_tdW_t$, is well-known in financial mathematics and we can find the analytic solution of SDE following asset price model by using Ito formula. In practice, we compute the expectation of errors between the numerical solutions and theoretical solution, the 95%-confidence intervals of errors and the strong orders of asset price model. We can compare the accuracy of Euler scheme and Milstein scheme. Using two kinds of stochastic numerical schemes we can simulate the solutions of SDEs.
Advisors
Choe, Geon-Horesearcher최건호researcher
Description
한국과학기술원 : 수학전공,
Publisher
한국과학기술원
Issue Date
2006
Identifier
255247/325007  / 020043520
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 수학전공, 2006.2, [ vi, 37 p. ]

Keywords

Euler scheme and Milstein scheme; 확률미분방정식; 밀스타인 기법; 오일러 기법

URI
http://hdl.handle.net/10203/42133
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=255247&flag=dissertation
Appears in Collection
MA-Theses_Master(석사논문)
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