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Shan Li, John P. Boyd. Symmetrizing grids, radial basis functions, and Chebyshev and Zernike polynomials for the D4 symmetry group; Interpolation within a squircle, Part I. J. Comput. Physics, 258:931-947, 2014. [doi]
Possibly Related PublicationsThe following publications are possibly variants of this publication: Approximation on non-tensor domains including squircles, Part III: Polynomial hyperinterpolation and radial basis function interpolation on Chebyshev-like grids and truncated uniform gridsShan Li, John P. Boyd. jcphy, 281:653-668, 2015. [doi] Spectral methods in non-tensor geometry, Part II: Chebyshev versus Zernike polynomials, gridding strategies and spectral extension on squircle-bounded and perturbed-quadrifolium domainsShan Li, John P. Boyd. amc, 269:759-774, 2015. [doi]
The following publications are possibly variants of this publication: