Papers On Curved Spaces And Cosmology
by Alexander A. Friedmann /
2014 / English / PDF
2.8 MB Download
If the talented Russian physicist Alexander Alexandrovich Friedmann
had to be introduced with a single sentence, the most appropriate
sentence would be the title of his biography translated from the
Russian: Alexander A. Friedmann: The Man who Made the Universe
Expand. Indeed, he was the first to realize in 1922 that Einstein's
equations have solutions which describe not only a stationary
Universe as Einstein initially believed, but also a non-stationary
world. Friedmann won the debate with Einstein over the
admissibility of such solutions, but his life was too short and he
could not see the triumph of his views when the experimental
evidence fully supported his predictions and demonstrated that the
Universe was expanding. This book contains three papers by
Friedmann - "On the Curvature of Space", "On the Possibility of a
World with a Constant Negative Curvature of Space", and "On the
Geometry of Curved Spaces". The third paper is a 28-page manuscript
(dated 15 April 1922) which has not been published even in Russian.
Unlike the existing two English translations of Friedmann's 1922
and 1924 papers (done from the German publications), now these
papers are translated directly from the original Russian texts.
If the talented Russian physicist Alexander Alexandrovich Friedmann
had to be introduced with a single sentence, the most appropriate
sentence would be the title of his biography translated from the
Russian: Alexander A. Friedmann: The Man who Made the Universe
Expand. Indeed, he was the first to realize in 1922 that Einstein's
equations have solutions which describe not only a stationary
Universe as Einstein initially believed, but also a non-stationary
world. Friedmann won the debate with Einstein over the
admissibility of such solutions, but his life was too short and he
could not see the triumph of his views when the experimental
evidence fully supported his predictions and demonstrated that the
Universe was expanding. This book contains three papers by
Friedmann - "On the Curvature of Space", "On the Possibility of a
World with a Constant Negative Curvature of Space", and "On the
Geometry of Curved Spaces". The third paper is a 28-page manuscript
(dated 15 April 1922) which has not been published even in Russian.
Unlike the existing two English translations of Friedmann's 1922
and 1924 papers (done from the German publications), now these
papers are translated directly from the original Russian texts.
