On the number of solutions of a transcendental equation arising in the theory of gravitational lensing
英文摘要：
The equation in the title describes the number of bright images of a point source under lensing by an elliptic object with isothermal density. We prove that this equation has at most 6 solutions. Any number of solutions from 1 to 6 can actually occur.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
