What is the fine-grained topic of the following text: Margarita Portapila graduated from the University of Rosario, Argentina and has recently completed her PhD thesis at Wessex Institute of Technology entitled “Iterative Schemes for the Solution of Systems of Equations arising from the Dual Reciprocity Boundary Integral Method in Multi Domains”. Only return the topic.
Margarita Portapila's PhD thesis on Iterative Schemes for the Solution of Systems of Equations originating from the Dual Reciprocity Boundary Integral Method in Multi Domains.