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Efficient Computation of Bifurcation Diagrams with Spectral Element Method and Reduced Order Models.
Rel. Claudio Canuto, Gianluigi Rozza. Politecnico di Torino, Master of science program in Mathematical Engineering, 2019
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Abstract
Many physical phenomena can be described using partial differential equations (PDEs), they usually are non-linear and, due to the non-linearity, multiple different solutions can exist. Understanding this property and the relation between the different solutions and some parameters is crucial to predict the evolution of a system when the parameters can vary. Even if these phenomena can be represented with bifurcation diagrams, obtaining them analytically or theoretically is impossible for almost every interesting problem. For this reason, one would like to compute them numerically, but, due to the complexity of the task, several different techniques must be used together to perform it in an accurate and efficient way.
Firstly, one has to be able to compute a solution of the problem for many values of the parameters, therefore the solver should be as accurate and fast as possible because it will be used many times
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