Sökning: "homotopy continuation"
Hittade 5 avhandlingar innehållade orden homotopy continuation.
1. Algebraic C*-actions and homotopy continuation
Sammanfattning : Let X be a smooth projective variety over C equipped with a C*-action whose fixed points are isolated. Let Y and Z be subvarieties of complementary dimentions in X which intersect properly. LÄS MER
2. Simple homotopy type of the Hamiltonian Floer complex
Sammanfattning : For an aspherical symplectic manifold M, closed or with convex contact boundary, and with vanishing first Chern class, a Floer chain complex is defined for Hamiltonians linear at infinity with coefficients in the group ring of the fundamental group of M. For two non-degenerate Hamiltonians of the same slope continuation maps are shown to be simple homotopy equivalences. LÄS MER
3. Topics in computation, numerical methods and algebraic geometry
Sammanfattning : This thesis concerns computation and algebraic geometry. On the computational side we have focused on numerical homotopy methods. These procedures may be used to numerically solve systems of polynomial equations. The thesis contains four papers. LÄS MER
4. Modeling and Model Reduction by Analytic Interpolation and Optimization
Sammanfattning : This thesis consists of six papers. The main topic of all these papers is modeling a class of linear time-invariant systems. The system class is parameterized in the context of interpolation theory with a degree constraint. LÄS MER
5. Local Signal Models for Image Sequence Analysis
Sammanfattning : The thesis describes novel methods for image motion computation and template matching.A multiscale algorithm for energy-based estimation and representation of local spatiotemporal structure by second order symmetric tensors is presented. LÄS MER
