Optik, vol.270, 2022 (SCI-Expanded)
© 2022 Elsevier GmbHIn this paper, intrinsic directional derivatives via anholonomic coordinates with respect to the Darboux frame in Minkowski 3-space R13 are obtained. Later, the evolution of electric field for three cases with respect to the Darboux frame in the q−lines direction in R13 is derived. Also, Darboux Lorentz equations in q−lines direction are found. Finally, an application relation to relaxed line via anholonomic coordinates in R13 is presented.