Avancerad sökning
Visar resultat 1 - 5 av 9 avhandlingar som matchar ovanstående sökkriterier.
1. Computer-Assisted Proofs and Other Methods for Problems Regarding Nonlinear Differential Equations
Sammanfattning : This PhD thesis treats some problems concerning nonlinear differential equations. In the first two papers computer-assisted proofs are used. The differential equations there are rewritten as fixed point problems, and the existence of solutions are proved. LÄS MER
2. Data Assimilation in Fluid Dynamics using Adjoint Optimization
Sammanfattning : Data assimilation arises in a vast array of different topics: traditionally in meteorological and oceanographic modelling, wind tunnel or water tunnel experiments and recently from biomedical engineering. Data assimilation is a process for combine measured or observed data with a mathematical model, to obtain estimates of the expected data. LÄS MER
3. Aspects of viscous shocks
Sammanfattning : This thesis consists of an introduction and five papers concerning different numerical and mathematical aspects of viscous shocks. Hyperbolic conservation laws are used to model wave motion and advect- ive transport in a variety of physical applications. LÄS MER
4. Differential Equations with Constraints
Sammanfattning : We study various differential equations subject to constraints. In the first part we study a partial differential equation, Burgers equation, subject to time-periodicity constraint. The forcing term is time-periodic and may be highly irregular. LÄS MER
5. Some studies within applied mathematics with focus on conditional symmetries of partial differential equations and bending waves in plates
Sammanfattning : This is thesis in mathematics with special focus on applied mathematics and mathematical physics. There is an introduction (in Svedish), two papers and two addendums to the first paper. The second paper is published in an international journal. LÄS MER