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On the duality theorems for the betti numbers of topological manifolds
  • PDF
  • English
  • Year: 1930
  • Author: Lefschetz S., Flexner W.W.
Algebraic geometry
  • DJVU
  • English
  • Year: 1953
  • Author: Lefschetz S
Lectures on differential equations
  • DJVU
  • English
  • Year: 1946
  • Author: Lefschetz S
Introduction to topology
  • DJVU
  • English
  • Year: 1949
  • Author: Lefschetz S.
Topics in topology
  • DJVU
  • English
  • Year: 1942
  • Author: Lefschetz S.
Transformations of Manifolds with a Boundary
  • PDF
  • English
  • Year: 1926
  • Author: Lefschetz S.
On the Functional Independence of Ratios of Theta Functions
  • PDF
  • English
  • Year: 1927
  • Author: Lefschetz S.
On Certain Properties of Separable Spaces
  • PDF
  • English
  • Year: 1932
  • Author: Lefschetz S.