On Periodicity Problems in the Calculus of Variations in the Large

Al´ ber, S. I.

On Periodicity Problems in the Calculus of Variations in the Large - 1950 - 274 páginas

1.Singular-espectral homoloy theory. 2.The cohomological method of L. A. Lyustemik. 3.The space of circle. 4.The homology of the space of closed curves on a sphere. 5.Estimates of the number of closed geodesics and extremals.

fcnm2587

515.43I/A13