
doi: 10.1007/bf01583781
We consider path following methods designed to trace the zeroes of a continuous or differentiable mapF:R n+1 →R n . These methods are applicable e.g. in the numerical study of nonlinear eigenvalue and bifurcation problems. Traditionally a simplicial algorithm is based on a fixed triangulationT ofR n+1 and a corresponding piecewise linear approximationF T :R n+1 →R n .4 A fixed triangulation algorithm then traces the zeroes ofF T via a complementary pivoting procedure. We present two kinds of hybrid algorithms that have the structure of a predictor—corrector method using simplicial methods to carry out the corrector steps. Numerical experience is reported showing the improvement in efficiency as compared to the fixed triangulation algorithm.
Bifurcations in context of PDEs, Triangulation and topological properties of semi-analytic and subanalytic sets, and related questions, complementary pivoting, nonlinear bifurcation problem, numerical experience, triangulation, simplicial algorithm, Numerical mathematical programming methods, Nonlinear programming, piecewise linear approximation, path following methods, nonlinear eigenvalue problem, predictor-corrector method, hybrid algorithms, Numerical solution of eigenvalue problems involving ordinary differential equations
Bifurcations in context of PDEs, Triangulation and topological properties of semi-analytic and subanalytic sets, and related questions, complementary pivoting, nonlinear bifurcation problem, numerical experience, triangulation, simplicial algorithm, Numerical mathematical programming methods, Nonlinear programming, piecewise linear approximation, path following methods, nonlinear eigenvalue problem, predictor-corrector method, hybrid algorithms, Numerical solution of eigenvalue problems involving ordinary differential equations
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