Fixed Points Features in N-Point Gravitational Lenses
A set of fixed points in N-point gravitational lenses is studied in the paper. We use complex form of lens mapping to study fixed points. There are some merits of using a complex form over coordinate. In coordinate form gravitational lens is described by a system of two equations and in complex form...
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| Format: | Article |
| Language: | English |
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V.N. Karazin Kharkiv National University Publishing
2019-10-01
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| Series: | East European Journal of Physics |
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| Online Access: | https://periodicals.karazin.ua/eejp/article/view/14357 |