On the Circles of Curvature of the Curves of Steepest Descent of Green's Function

On the Asymptotic Properties of Extremal Polynomials with Prescribed Constant Term

Note on Degree of Approximation to Analytic Functions by Rational Functions with Preassigned Poles

On Degree of Approximation by Bounded Harmonic Functions

Degree of Approximation by Bounded Harmonic Functions

On Approximation by Rational Functions and by Bounded Analytic Functions

Note on Invariance of Degree of Polynomial and Trigonometric Approximation Under Change of Independent Variable

Note on Polynomial Approximation on a Jordan Arc

Determination of an Analytic Function by Its Values Given in a Countable Infinity of Points

On Infrapolynomials with Prescribed Constant Term

The Zeros of Infrapolynomials with Some Prescribed Coefficients

On the Degree of Convergence of Sequences of Extremal Polynomials and Other Extremal Functions

Polynomials of Best Approximation on an Interval

Best Approximations Within a Linear Family on an Interval

On Restricted Infrapolynomial

The Theory of Splines and Their Applications: Mathematics in Science and Engineering: A Series of Monographs and Textbooks, Vol. 38, Volume 38