arXiv subjects

Kyung Hyun Cho

Publications and source records attributed to Kyung Hyun Cho.

2 recordsLinked to original sources

arXiv2011

On a multi-point Schwarz-Pick lemma

We consider the multi-point Schwarz-Pick lemma and its associate functions due to Beardon-Minda and Baribeau-Rivard-Wegert. Basic properties of the associate functions are summarized. Then we observe that special cases of the multi-point Schwarz-Pick lemma give Schur's continued fraction algorithm and several inequalities for bounded analytic functions on the unit disk.

math.CV↗

arXiv1995

Solvable Potentials from Supersymmetric Quantum Mechanics

A recurrence relation of Riccati-type differential equations known in supersymmetric quantum mechanics is investigated to find exactly solvable potentials. Taking some simple {\it ansätze}, we find new classes of solvable potentials as well as reproducing the known shape-invariant ones.

hep-th↗