Recent developments in gravitational lensing: Theory and numerical modeling

Abstract

This article is a rapporteur review of selected talks presented at the session 'Gravitational lensing: theory and numerical modeling' of the Fourteenth Marcel Grossmann Meeting (MG14) as well as discussion of general ideas of related topics. We consider the influence of plasma on various gravitational lensing effects, including strong lensing systems and black hole shadows. We discuss recent developments in gravitational lensing beyond the small deflection regime, as well as some other aspects of this field. New results in modeling strong lensing systems and microlensing are presented.