Association Journal of CSIAM
Supervised by Ministry of Education of PRC
Sponsored by Xi'an Jiaotong University
ISSN 1005-3085  CN 61-1269/O1

Chinese Journal of Engineering Mathematics ›› 2016, Vol. 33 ›› Issue (4): 419-427.doi: 10.3969/j.issn.1005-3085.2016.04.008

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The Singularly Perturbed Problems for Nonlinear Nonlocal Disturbed Evolution Equations with Two Parameters

FENG Yi-hu1,  WU Qin-kuan2,  XU Yong-hong3,  MO Jia-qi4   

  1. 1- Department of Electronics and Information Engineering, Bozhou College, Bozhou, Anhui 236800
    2- Department of Mathematics & Physics, Nanjing Institute of Technology, Nanjing, Jiangsu 211167
    3- Department of Mathematics & Physics, Bengbu College, Bengbu, Anhui 233030
    4- Department of Mathematics, Anhui Normal University, Wuhu, Anhui 241003
  • Received:2014-12-18 Accepted:2015-12-07 Online:2016-08-15 Published:2016-10-15
  • Supported by:
    The National Natural Science Foundation of China (11202106); the Natural Science Foundation of the Education Department of Anhui Province (KJ2015A347; KJ2014A151; KJ2013B153); the Excellent Youth Talented Project of the Colleges and Universities of Anhui Province (gxyqZD2016520).

Abstract:

The nonlinear nonlocal singularly perturbed problems for the disturbed evolution equations are studied. Using the singular perturbation method, the structure of solution to the problem is discussed in the cases of two small parameters. Under the suitable conditions, firstly, the outer solution to the boundary value problem is given. Secondly, the variables of multiple scales are introduced to obtain the boundary layer corrective terms for the solution. Then the stretched variable is applied to the boundary neighborhood to get the initial layer correction term. Finally, using the fix point theorem, the uniformly valid asymptotic expansion of the solution to the problem is proved. The proposed method possesses the advantages of convenient use and high accuracy.

Key words: nonlocal problem, singular perturbation, nonlinear hyperbolic equation

CLC Number: