Two new non-classical Lagrange basis families are introduced for Müntz pseudo-spectral methods, with error bounds, Erdélyi-Kober fractional differentiation matrices, and numerical tests.
M\"untz Pseudo Spectral Method: Theory and Numerical Experiments
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abstract
This paper presents two new non-classical Lagrange basis functions which are based on the new Jacobi-M\"untz functions presented by the authors recently. These basis functions are, in fact, generalizations form of the newly generated Jacobi based functions. With respect to these non-classical Lagrange basis functions, two non-classical interpolants are introduced and their error bounds are proved in detail. The pseudo-spectral differentiation (and integration) matrices have been extracted in two different manners. Some numerical experiments are provided to show the efficiency and capability of these newly generated non-classical Lagrange basis functions.
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math.NA 1years
2019 1verdicts
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M\"untz Pseudo Spectral Method: Theory and Numerical Experiments
Two new non-classical Lagrange basis families are introduced for Müntz pseudo-spectral methods, with error bounds, Erdélyi-Kober fractional differentiation matrices, and numerical tests.