On an estimation of the roots of algebraic equations
Interpolation by bivariate polynomials based on Radon projections
For any given set of angles θ₀ < ... < θₙ in [0,π), we show that a set of Radon projections, consisting of k parallel X-ray beams in each direction , k = 0, ..., n, determines uniquely algebraic polynomials of degree n in two variables.
Best quadrature formula for a certain class of analytic functions
Optimal methods of integration in the class of differentiable functions
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