National Natural Science Foundation of China#&#�#&#�#&#�
Hunan Provincial Natural Science Foundation#&#ߥJJ30057
Natural Science Foundation of Jiangxi Province#&#伒BAB25008
机构署名:
本校为其他机构
院系归属:
数学与统计学院
摘要:
The number of zeros of a one-parameter family of rational harmonic trinomials is studied. It is considered to be as an analogue work on that of corresponding harmonic trinomials investigated recently by Brilleslyper et al. and Brooks et al. Note that their proofs rely on the Argument Principle for Harmonic Functions and involve finding the winding numbers about the origin of a hypocycloid. Our proof is similar by means of Poincaré index and the geometry of epicycloid.
The number of zeros of a one-parameter family of rational harmonic trinomial...