Title of article :
A timelike extension of fermatʹs principle in general relativity. Comparisons with the lightlike case Original Research Article
Author/Authors :
Fabio Giannoni، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1997
Keywords :
Lorentzian geometry , Levi-Civita Connection , Geodesies , Fermatיs principle , Palais-Smale condition , light rays
Journal title :
Nonlinear Analysis Theory, Methods & Applications
Journal title :
Nonlinear Analysis Theory, Methods & Applications