Renormalization of circle diffeomorphisms with a break-type singularity

Habibulla Akhadkulov, Mohd Salmi Md Noorani, Sokhobiddin Akhatkulov

Let $f$ be an orientation-preserving circle diffeomorphism with irrational rotation number and with a break point ${\xi }_0,$ that is, its derivative $f^{\prime }$ has a jump discontinuity at…