Sökning: "Poincaré"
Visar resultat 11 - 15 av 32 avhandlingar innehållade ordet Poincaré.
11. Articles on Potential Theory, Functional Analysis and Hankel Forms
Sammanfattning : Paper I: Perfekt, K.-M. and Putinar, M., Spectral bounds for the Neumann-Poincaré operator on planar domains with corners, to appear in J. LÄS MER
12. Convergence analysis of domain decomposition methods : Nonlinear elliptic and linear parabolic equations
Sammanfattning : Domain decomposition methods are widely used tools for solving partial differential equations in parallel. However, despite their long history, there is a lack of rigorous convergence theory for equations with non-symmetric differential operators. This includes both nonlinear elliptic equations and linear parabolic equations. LÄS MER
13. Relativistic particle mechanics : a hamiltonian approach
Sammanfattning : This study is devoted to certain fundamental problems within theoretical physics. The aim is to show that there exists a consistent Poincare invariant Hamiltonian formalism describing interactions between any number of discrete particles forming an isolated (in general spinning) system. No fields or potentials are needed for the description. LÄS MER
14. Graded lie algebras in local algebra and rational homotopy
Sammanfattning : This thesis consists of three papers, [A – C]The old conjecture that Poincaré-series of local noetherian rings are rational was disproved by Anick in 1979. Building upon his counter-example, as analyzed by Löfwall-Roos, I construct a Gorenstein ring with transcendental Poincaré-series; by a method of Roos this also gives a manifold whose loopspace has transcendental Poinaré-Betti series. LÄS MER
15. Minimal models in algebra, combinatorics and topology
Sammanfattning : The thesis consists of seven papers.In Paper I, II, III, IV and V, we study homological invariants of monomial rings — rings of the form R = k[x1, . . . LÄS MER
