Geodesic

Functional analysis and theory of functions. 6

Sommaire

Certain questions of the convergence and summability of orthogonal expansions of functions of two variables
p. 3-29
Approximation of functions of two variables with respect to a Haar system
p. 30-52
The Haar, Rademacher and Walsh systems of functions of several variables
p. 53-59
On the solvability of a problem of the vibrations of elastic loose cross system
p. 60-64
Axiomatic definition of hyperbolic functions
p. 65-75
The limit of a multi-valued function that is defined on a partially ordered set
p. 76-88
On the reduction principle in Banach spaces
p. 89-97
On temperature field and thermal losses of bed during fluid injection
p. 98-103
Solvability by the reduction method of a certain class of infinite systems of linear algebraic equations
p. 104-105
The convergence of the method of lines for the elliptic equation $\Delta^3u(x,y)=f(x,y)$
p. 106-119
Certain questions of systems of orthogonal polynomials that relate to a two-dimensional domain
p. 120-124
Solution of two boundary value problems for a certain third order equation of mixed composite type
p. 125-130
A certain mixed problem for a degenerate equation of hyperbolic type
p. 131-134
Certain partially ordered sets, spaces over semiordered lineals and approximation methods
p. 135-138
Asymptotic behavior of a certain integral that contains Gegenbauer polynomials
p. 139-144
An approximate solution by the method of lines for a boundary value problem with a biharmonic operator in the disc
p. 145-151
On the question of the formal multiplication of series
p. 152-161
Nonlinear equations in Banach spaces
p. 162-175