Forward-backward heat equations and analysis of iterative methods / Hao LuPolynomial preconditioners for conservation laws / H. Lu and B.J. GeurtsCompensative block incomplete factorizations / H. LuCompensative block incomplete factorizations / H. LuCompensative block incomplete factorizations / H. LuAsymptotic rate of convergence of a generalized SOR method for Hermitian positive definite matrices / H. Lu