Real Zeros of Derivatives of Meromorphic Functions and Solutions of Second Order Differential Equations
Simon Hellerstein, Li‐Chien Shen, Jack Williamson
Abstract
Simon Hellerstein, Li‐Chien Shen, Jack Williamson
Abstract
We classify all functions $F$ meromorphic in the plane with only real zeros and real poles which satisfy the additional conditions that $F’$ has no zeros and $F''$ only real zeros. We apply this classification, in combination with some earlier results, to the study of the reality of zeros of solutions of the equation $w'' + H(z)w = 0,H$ entire.
OpenAlex reports 9 citations for this work. Citation counts describe recorded attention and do not establish research quality.
A contribution statement is not available in the OpenAlex record.
Method details are not available in the OpenAlex metadata.
Findings are not separately available in the OpenAlex metadata.
Limitations are not available in the OpenAlex metadata.
Application details are not available in the OpenAlex metadata.
We classify all functions $F$ meromorphic in the plane with only real zeros and real poles which satisfy the additional conditions that $F’$ has no zeros and $F''$ only real zeros. We apply this classification, in combination with some earlier results, to the study of the reality of zeros of solutions of the equation $w'' + H(z)w = 0,H$ entire.
Key concepts: Meromorphic function, Mathematics, Complex plane, Order (exchange), Entire function, Plane (geometry), Pole–zero plot, Differential equation