Geodesic

Tome 8 (1972) no. 10

Sommaire

Representations of the $TO$-solutions of the equation $X(x,y)dy=Y(x,y)dx$
p. 1723-1737
A condition for the completeness of the system of root subspaces of a Sturm–Liouville type operator in Hilbert space
p. 1738-1744
Criteria for the optimality of discrete processes
p. 1745-1752
Sufficient conditions for the existence of solutions with stationary critical singular points for first order equations
p. 1753-1760
The construction of the equations of a programmed motion having extremal properties
p. 1761-1766
A certain differential game
p. 1767-1771
The existence of a locally invariant surface for certain strongly nonlinear systems of differential equations
p. 1772-1778
On the analytic theory of the equation $z^2u^{''}-f(z)u=0$. I, II
p. 1779-1790
Coefficient criteria for the existence of separatrix cycles for a certain quadratic equation
p. 1791-1796
A certain differential pursuit game with information lag in the presence of integral constraints
p. 1797-1804
Diffraction of the radiation field of a horizontal dipole by a circular opening in a plane screen in the presence of a circular disc that is coaxial to it
p. 1805-1815
Branching of the solutions of the equation $\Delta u+\lambda u=f(u)$ on the sphere
p. 1816-1824
Expansion of functions belonging to $L_p$ in the eigenfunctions of certain elliptic operators
p. 1825-1834
Weight spaces. Boundary conditions
p. 1835-1847
A representation of the analytic solutions of certain matrix-valued partial differential equations
p. 1848-1856
On necessary conditions for high order optimality for singular controls of discrete systems
p. 1857-1867
The space-time version of the method of straight lines, and its realization
p. 1868-1875
On the existence of periodic solutions to nonlinear systems
p. 1876-1877
On the question of the estimation of domains of attraction
p. 1878-1879
The singular points of the Darboux differential equation
p. 1880-1881
The almost differentiability with respect to parameters of the solutions of a system of first order ordinary differential equations
p. 1882-1885
The solutions of a certain differential system in a complex domain
p. 1886-1888
On the question of the stability of the solutions of linear systems of differential equations with lag
p. 1889-1891
An estimate of the sector of absolute stability of a certain third order nonlinear equation
p. 1892-1893
The boundedness and unboundedness of the solutions of certain systems of second order equations
p. 1894-1897
A certain class of integrable equations with limit cycles
p. 1898-1900
Global topological equivalence of nonlinear flows
p. 1901-1903
Solvability in the large of the first boundary value problem for a certain class of quasilinear one-dimensional parabolic equations
p. 1904-1905
A certain oblique derivative problem for harmonic functions of three independent variables
p. 1906-1908