Vũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched points

Pelayo, ÁlvaroTang, Xiudi2025-12-172025-12-172024Pelayo, Á., Tang, X. Vũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched points. J. Fixed Point Theory Appl. 2024 Jan 25;26 (6).1661-77381661-774610.1007/s11784-023-01089-1https://hdl.handle.net/20.500.14352/129210engVũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched pointsjournal articlehttps://link.springer.com/article/10.1007/s11784-023-01089-1#citeasopen accessAnálisis matemáticoTopología1210 Topología