数学物理学报(英文版) ›› 2012, Vol. 32 ›› Issue (4): 1495-1502.doi: 10.1016/S0252-9602(12)60118-0

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ESTIMATES OF N-FUNCTION AND m-FUNCTION OF MEROMORPHIC SOLUTIONS OF SYSTEMS OF COMPLEX DIFFERENCE EQUATIONS

高凌云   

  1. Department of Mathematics, Jinan University, Guangzhou 510632, China
  • 收稿日期:2010-09-10 修回日期:2011-08-25 出版日期:2012-07-20 发布日期:2012-07-20
  • 基金资助:

    Project Supported by the Natural Science Foun-dation of China (10471065) and the Natural Science Foundation of Guangdong Province (04010474).

ESTIMATES OF N-FUNCTION AND m-FUNCTION OF MEROMORPHIC SOLUTIONS OF SYSTEMS OF COMPLEX DIFFERENCE EQUATIONS

GAO Ling-Yun   

  1. Department of Mathematics, Jinan University, Guangzhou 510632, China
  • Received:2010-09-10 Revised:2011-08-25 Online:2012-07-20 Published:2012-07-20
  • Supported by:

    Project Supported by the Natural Science Foun-dation of China (10471065) and the Natural Science Foundation of Guangdong Province (04010474).

摘要:

We apply Nevanlinna theory of the value distribution of meromorphic func-tions to study the properties of Nevanlinna counting function and proximity function of
meromorphic solutions of a type of systems of complex difference equations. Our results can give estimates on the proximity function and the counting function of solutions of systems of difference equations. This implies that solutions have a relatively large number of poles. It extend some result concerning difference equations to the systems of difference equations.

关键词: meromorphic solution, proximity function, counting function, difference equations

Abstract:

We apply Nevanlinna theory of the value distribution of meromorphic func-tions to study the properties of Nevanlinna counting function and proximity function of
meromorphic solutions of a type of systems of complex difference equations. Our results can give estimates on the proximity function and the counting function of solutions of systems of difference equations. This implies that solutions have a relatively large number of poles. It extend some result concerning difference equations to the systems of difference equations.

Key words: meromorphic solution, proximity function, counting function, difference equations

中图分类号: 

  • 39B32