Preconditioning Legendre Spectral Collocation Approximations to Elliptic Problems
نویسندگان
چکیده
منابع مشابه
Preconditioning Legendre Spectral Collocation Approximations to Elliptic Problems
This work deals with the H1 condition numbers and the distribution of the ~ N;Msingular values of the preconditioned operators f~ 1 N;M WN;M ÂN;Mg. ÂN;M is the matrix representation of the Legendre Spectral Collocation discretization of the elliptic operator A de ned by Au := u + a1ux + a2uy + a0u in (the unit square) with boundary conditions: u = 0 on 0; @u @ A = u on 1. ~ N;M is the sti ness ...
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ژورنال
عنوان ژورنال: SIAM Journal on Numerical Analysis
سال: 1995
ISSN: 0036-1429,1095-7170
DOI: 10.1137/0732015