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Space-time adaptive finite difference method for European multi-asset options

机译:欧洲多资产期权的时空自适应有限差分法

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摘要

The multi-dimensional Black-Scholes equation is solved numerically for a European call basket option using a priori-a posteriori error estimates. The equation is discretized by a finite difference method on a Cartesian grid. The grid is adjusted dynamically in space and time to satisfy a bound on the global error. The discretization errors in each time step are estimated and weighted by the solution of the adjoint problem. Bounds on the local errors and the adjoint solution are obtained by the maximum principle for parabolic equations. Comparisons are made with Monte Carlo and quasi-Monte Carlo methods in one dimension, and the performance of the method is illustrated by examples in one, two, and three dimensions.
机译:使用先验-后验误差估计,对于欧式看涨期权的多维Black-Scholes方程进行了数值求解。该方程通过笛卡尔网格上的有限差分法离散化。可以动态调整网格的空间和时间,以满足全局误差的要求。通过伴随问题的解估计和加权每个时间步的离散误差。通过抛物方程的最大原理获得局部误差和伴随解的界。一维方法与蒙特卡洛方法和准蒙特卡洛方法进行了比较,并通过一维,二维和三维示例举例说明了该方法的性能。

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