Internet diffusion and interregional digital divide in Russia: trends, factors, and the influence of the pandemic
... in data collection and processing.
Zemtsov S.P., Demidova K.V., Kichaev D.Yu.
10.5922/2079-8555-2022-4-4
57-78
ICR, digital technologies, digital economy, Russian regions, diffusion of innovations, online trade, pandemic, econometric modeling, system of equations
Complex geometrical optics with real ray trajectories
Obtained the characteristic system of equations of complex geometrical optics for the case of real ray trajectories.
1.
Кравцов Ю.
А., Яшин Ю.
Я.
Комплексная геометрическая оптика неоднородных анизотропных сред ...
