On one rational integral operator of Fourier – Chebyshev type and approximation of Markov functions

Bilinear Fourier integral operator and its boundedness

We consider the bilinear Fourier integral operatorS(f, g)(x) =ZRdZRdei1(x,)ei2(x,)(x, , ) ˆ f()ˆg()d d,on modulation spaces. Our aim is to indicate this operator is well defined onS(Rd) and shall show the relationship between the bilinear operator and BFIO onmodulation spaces.

Numerical Solution of Singular IVPs of Lane-Emden Type Using Integral Operator and Radial Basis Functions

Generalized Rational Chebyshev Approximation

In this paper, a generalized rational Chebyshev approximation problem is considered. The problem is this: To minimize the maximum absolute value of the "criterion function" of the error. By imposing a rather natural restriction on the criterion function, the problem is solved completely; the existence, the uniqueness and the characterization of the best approximation are clarified and interesti...

the investigation of the relationship between type a and type b personalities and quality of translation

چکیده ندارد.

Chebyshev Polynomials and Markov–bernstein Type Inequalities for Rational Spaces

This paper considers the trigonometric rational system