Geodesic

Tome 26 (1971) no. 2

Sommaire

Greetings to Ivan Georgievich Petrovskii on the occasion of his seventieth birthday
p. 3-4
Ivan Georgievich Petrovskii (on his seventieth birthday)
p. 5-28
On matrices depending on parameters
p. 29-43
Intermediate asymptotics in matematical physics
p. 45-61
Formal groups and their role in the apparatus of algebraic topology
p. 63-90
The parametrix of elliptic operators with infinitely many independent variables
p. 91-112
On the solubility of differential equations with simple characteristics
p. 113-130
Generalization of a~theorem on the spatial angle
p. 131-137
On local smoothness of generalized and hypoellipticity of second order differential equations
p. 139-156
Lacunas for hyperbolic differential operators with constant coefficients.~I
Sharp fronts and lacunas
Partial differential inequalities
p. 91-159
New books on mathematics