Avkhadiev–Lehto Type Constants in the Study of the Gakhov Class of the conformal radius. We use an analogue of the concept that
Lehto applied to study univalence
The unique blazar OJ 287 and its massive binary black hole central engineDey L.,
Gopakumar A.,
Valtonen M.,
Zola S.,
Susobhanan A.,
Hudec R.,
Pihajoki P.,
Pursimo T.,
Berdyugin A.,
Piirola V.,
Ciprini S.,
Nilsson K.,
Jermak H.,
Kidger M.,
Komossa S. . The binary black hole (BBH) central engine model, proposed by
Lehto and Valtonen in 1996, was influenced