SIAM Journal on Numerical Analysis
Efficient preconditioning for the p-version finite element method in two dimensions
SIAM Journal on Numerical Analysis
On the L2 error for the p-version of the finite element method over polygonal domains
Computer Methods in Applied Mechanics and Engineering
Jacobi approximations in non-uniformly Jacobi-weighted Sobolev spaces
Journal of Approximation Theory
SIAM Journal on Numerical Analysis
Generalized Jacobi polynomials/functions and their applications
Applied Numerical Mathematics
SIAM Journal on Numerical Analysis
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This is the third of a series devoted to the direct and inverse approximation theorems of the p-version of the finite element method in the framework of the Jacobi-weighted Besov and Sobolev spaces. In this paper we derive the inverse algebraic approximation in terms of the Jacobi-weighted Besov spaces and prove the inverse theorems for the finite element solutions of the p-version in the Chebyshev-weighted Besov spaces based upon the convergence rate measured in the energy norms.