Explicit constructions and an O(n²) spectral decomposition invert the univariate Bernstein mass matrix with Cholesky-comparable accuracy and reduced conditioning in the L² norm on polynomials.
B´ ezier representation of the constrained dual Bern- stein polynomials
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Structured inversion of the Bernstein mass matrix
Explicit constructions and an O(n²) spectral decomposition invert the univariate Bernstein mass matrix with Cholesky-comparable accuracy and reduced conditioning in the L² norm on polynomials.