F(R) gravity - significado y definición. Qué es F(R) gravity
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Qué (quién) es F(R) gravity - definición


F. Richard Stephenson         
BRITISH RESEARCHER IN HISTORICAL ASTRONOMY
F. R. Stephenson
F. Richard Stephenson (born Francis Richard Stephenson, 26 April 1941) is an Emeritus Professor at the University of Durham, in the Physics department and the East Asian Studies department.
F(R) gravity         
THEORY OF GRAVITY WHOSE LAGRANGIAN IS SOME FUNCTION OF THE RICCI SCALAR R
F(R)-gravity; F(R) theory; F(r) gravity; F (R) gravity theories; F(R) gravity theories
() is a type of modified gravity theory which generalizes Einstein's general relativity. () gravity is actually a family of theories, each one defined by a different function, , of the Ricci scalar, .
Ŕ         
LETTER OF THE SLOVAK AND LOWER SORBIAN ALPHABETS
R with acute; R acute
Ŕ (minuscule: ŕ) is a letter of the Lower Sorbian and Slovak alphabets, Ukrainian Latin alphabet and Proto-Turkic orthography. It is formed from R with the addition of an acute.

Wikipedia

F(R) gravity
() is a type of modified gravity theory which generalizes Einstein's general relativity. () gravity is actually a family of theories, each one defined by a different function, , of the Ricci scalar, .