Fixed points of mapping of N-point gravitational lenses

In this paper, we study fixed points of N-point gravitational lenses. We use complex form of lens mapping to study fixed points. Complex form has an advantage over coordinate one because we can describe N-point gravitational lens by system of two equation in coordinate form and we can describe it by o...

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Bibliographic Details
Main Authors: A. T. Kotvytskiy, V. Yu. Shablenko, E. S. Bronza
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2018-10-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/144558