The uniqueness of meromorphic functions that share four values is investigated. A necessary condition to the case is acquired, and some partial results for question '1CM+3IM=4CM' are obtained.
A problem of meromorphic functions that share two values is discussed, and two results recently obtained respectively by Yi H. X. and Song G. D. & Li N. are improved.
基金Project supported by the National Natural Science Foundation of China(19971052) and the Programme of Hunan Education Foundation(02C095)
文摘The uniqueness of meromorphic functions that share four values is investigated. A necessary condition to the case is acquired, and some partial results for question '1CM+3IM=4CM' are obtained.
基金The NNSF (19871050) of China and the Doctoral Programme Foundation (98042209) of Higher Education.
文摘A problem of meromorphic functions that share two values is discussed, and two results recently obtained respectively by Yi H. X. and Song G. D. & Li N. are improved.
