List questions from approximation-theory

Published on 18 Nov 2021 - 17:51

92

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Representation of a polynomial in the Chebyshev form

Published on 20 Nov 2021 - 13:19

20

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Non-infinitesimal linear expansion of a differential operator $X$

Published on 29 Nov 2021 - 10:24

37

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Chebyshev interpolation of 1-Lipshitz functions

Published on 29 Nov 2021 - 23:28

39

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Mollifiers for a function on $[0,T]\times R$

Published on 01 Dec 2021 - 14:48

79

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Coefficients of the polynomial approximation of $|x|$

Published on 21 Dec 2021 - 10:12

38

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Spectrally-Accurate Quadrature of Singular Integrand

Published on 25 Mar 2026 - 16:40

141

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Approximate $f(x)= x^2$ with the best approximation in $L_1$ under the given norm.

Published on 28 Dec 2021 - 12:56

155

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A version of Ascoli-Arzelà using modulus of continuity and nth entropy numbers

Published on 23 Feb 2026 - 23:25

81

Views

Exchange Theorem for Haar Condition

Published on 17 Jan 2022 - 18:09

53

Views

Smooth function $C^{\infty}$ that in the limit becomes Coulomb potential

Published on 20 Jan 2022 - 1:45

22

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How to find the best piecewiselinear approximation with fewer intervals

Published on 26 Mar 2026 - 4:33

111

Views

Stone–Weierstrass approximation theorem for multivariable case.

Published on 23 Feb 2026 - 19:14

42

Views

How to represent simple multiplications as additions?

Published on 07 Feb 2022 - 18:34

67

Views

Universal approximation theorem for injections

Published on 28 Mar 2026 - 21:50

List Question

Uniform best approximations -- Behavior outside of approximation interval

Representation of a polynomial in the Chebyshev form

Non-infinitesimal linear expansion of a differential operator $X$

Chebyshev interpolation of 1-Lipshitz functions

Mollifiers for a function on $[0,T]\times R$

Coefficients of the polynomial approximation of $|x|$

Spectrally-Accurate Quadrature of Singular Integrand

Approximate $f(x)= x^2$ with the best approximation in $L_1$ under the given norm.

A version of Ascoli-Arzelà using modulus of continuity and nth entropy numbers

Exchange Theorem for Haar Condition

Smooth function $C^{\infty}$ that in the limit becomes Coulomb potential

How to find the best piecewiselinear approximation with fewer intervals

Stone–Weierstrass approximation theorem for multivariable case.

How to represent simple multiplications as additions?

Universal approximation theorem for injections

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