Geodesic

Volume (1969) no. 12

Sommaire

The coefficients of the Fourier--Hermite series of continuous functions
p. 3-8
Linear differential-difference equations of infinite order with constant coefficients. Existence theorems for almost periodic solutions
p. 9-19
Certain integral inequalities that contain derivatives
p. 20-24
The accuracy of the representation of continuous periodic functions of two variables by singular integrals
p. 25-33
The ``correction'' theorems of Men'sov for a~certain class of multiplicative orthonormal systems of functions
p. 34-46
The first boundary value problem for a~certain quasilinear equation that degenerates on the boundary of the domain
p. 47-52
Best quadrature formulae for certain classes of functions
p. 53-59
The pasting together of functions of class $H^{(\alpha)}_{px}$ in two-dimensional space
p. 60-64
Tauberian type theorems for integral transforms, and their application
p. 65-70
On the theory of the index of systems of difference equations on the plane
p. 71-75
The best uniform approximation by algebraic polynomials of differentiable functions
p. 76-82
Certain solutions of linear inhomogeneous differential-difference equations
p. 83-92
Isomorphisms of semigroups of invertible linear transformations that leave a~cone invariant
p. 93-98
Cauchy, Goursat, and Cauchy--Goursat problems for degenerating systems of equations.~I
p. 99-111
The $(C,\,1)$-summability of the expansions of functions in periodic multiplicative orthonormal systems
p. 112-123
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