@article { author = {Jahanshahi, M. and Sarakhsi, A. R. and Asharafi, S. and Aliev, N.}, title = {Boundary layer problem for system of first order of ordinary differential equations with linear non-local boundary conditions}, journal = {Iranian Journal of Science}, volume = {37}, number = {3.1}, pages = {389-396}, year = {2013}, publisher = {Springer}, issn = {2731-8095}, eissn = {2731-8109}, doi = {10.22099/ijsts.2013.1638}, abstract = {In this paper we study the boundary layer problems in which boundary conditions are non-local. Here we try to find the necessary conditions by the help of fundamental solution to the given adjoint equation. By getting help from these conditions, at first the boundary condition is changed from non-local to local. The main aim of this paper is to identify the location of the boundary layer. In other words, at which point the boundary layer is formed.}, keywords = {Singular perturbation problems,boundary layer,fundamental solution,necessary conditions}, url = {https://ijsts.shirazu.ac.ir/article_1638.html}, eprint = {https://ijsts.shirazu.ac.ir/article_1638_138c842f9ce699a3b1ca11ff19b5855a.pdf} }