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带Neumman边界条件的抛物型方程的Legendre谱方法(英文)

Legendre spectral method for parabolic equations with neumann boundary conditions
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摘要 主要应用Legendre谱方法求解一类带Neumann边界条件的抛物型方程。分别列举了线性问题和非线性问题的例子,并给出了相应问题的全离散谱格式。在谱格式的构造过程中,借鉴了构造稀疏矩阵的思想,分别构造了刚度矩阵为单位矩阵或三对角矩阵的计算格式。与经典的谱方法相比,该做法有效的避免了在处理含有二阶导数项或带Neumann边界条件时刚度矩阵是满整的缺陷.在数值计算中,数值结果说明了这种方法的有效性。 We apply the Legendre spectral method with essential imposition of Neumann boundary condition to some time-dependent problems. The fully discrete spectral schemes are proposed for two model problems. Numerical results demonstrate the efficiency of this approach.
出处 《上海师范大学学报(自然科学版)》 2010年第3期235-238,共4页 Journal of Shanghai Normal University(Natural Sciences)
基金 supported in part by the NSF of China(10771142) the Shuguang Project of Shanghai Education Commission(08SG45)
关键词 LEGENDRE谱方法 NEUMANN边界条件 抛物型方程 legendre spectral method neumann boundary condition parabolic equation
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参考文献14

  • 1AUTERI F,PAROLINI N,QUARTAPELLE L.Essential imposition of Neumann condition in Galerkin-Legendre elliptic solvers[J].J Comp Phys,2003,185:427-444.
  • 2BERNARDI C,MADAY Y.Spectral methods,in Handbook of Numerical Analysis[M].Amsterdam:Elsevier,1997.
  • 3CANUTO C,HUSSAINI M Y,QUARTERONI A,et al.Spectral Methods:Fundamentals in single domains[M].Berlin:Springer-Verlag,2006.
  • 4DOHA E H,BHRAWY A H,ABD-ELHAMEED W M.Jacobi spectral Galerkin method for elliptic Neumann problems[J].Numer Algor,2009,50:67-91.
  • 5FUNARO D.Polynomial Approxiamtions of Differential Equations[M].Berlin:Springer-Verlag,1992.
  • 6GOTTLIEB D,ORSZAG S A.Numerical Analysis of Spectral Methods:Theory and Applications[M].Philadelphia:SIAMCBMS,1977.
  • 7GUO B Y.Spectral Methods and Their Applications[M].Singapore:World Scientific,1998.
  • 8GUO B Y.Jacobi approximations in certain Hilbert spaces and their applications to singular differential equations[J].J Math Anal Appl,2000,2.43:373-408.
  • 9GUO B Y,WANG L L.Legendre approximations in non-uniformly Legendre-weighted Sobolev spaces[J].J Appr Theo,2004,128:1-41.
  • 10GUO B Y,WANG L L.Jacobi interpolation approximations and their applications to singular differential equations[J].Adv in Comp Math,2001,14:227-276.

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