Ghandehari, Mostafa(University of Texas at Arlington, 1997)
**Please note that the full text is embargoed** ABSTRACT: Variational techniques are used to find path of light rays on surfaces. Using Fermat's principle of least time the problem is treated as a constraint optimization ...
Golomb, Michael; Ghandehari, Mostafa(University of Texas at Arlington, 1996)
**Please note that the full text is embargoed** ABSTRACT: The main minimum (or extremum) path problem in this paper deals with the "law of refraction" at a curve separating the plane into two parts with different norms. ...