Applied Mathematics and Mechanics (English Edition) ›› 1997, Vol. 18 ›› Issue (12): 1197-1204.

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THE DISTRIBUTION OF ZEROES OF SOLUTIONS OF NEUTRAL EQUATIONS

Zhou Yong1, Wang Zhicheng2   

  1. 1. Department of Mathematics, Xiangtan University, Xiangtan, 411105. P. R. China;
    2. Department of Applied Mathematics, Hunan University Changsha, 410082, P. R. China
  • Received:1995-09-06 Revised:1997-05-23 Online:1997-12-18 Published:1997-12-18
  • Supported by:
    Project supported by the National Natural Science Foundation of China and Natural Science Foundation of Hunan Province

Abstract: The purpose of ibis paper is to study the distribution of zerocs of solutions of theneutral delay differential equations. An estimate is estublished for the distween betweenadjacenlt zeroes of the solutions of such equations under less restritive hypotheses on the variable coefficients.The results obtained improve and extend scme known resultsin the literature.

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