Search for dissertations about: "equation"
Showing result 6  10 of 1354 swedish dissertations containing the word equation.

6. Approximating Stochastic Partial Differential Equations with Finite Elements: Computation and Analysis
Abstract : Stochastic partial differential equations (SPDE) must be approximated in space and time to allow for the simulation of their solutions. In this thesis fully discrete approximations of such equations are considered, with an emphasis on finite element methods combined with rational semigroup approximations. READ MORE

7. Macroscopic Volume and Free Volume of Polymer Blends and Pressuredensified Polymers
Abstract : The macroscopic volume V as a function of pressure P and temperature T is obtained from PVT measurements. PVT data is sensitive to the state of polymers and changes therein. Moreover, PVT data gives access to the freevolume fraction. READ MORE

8. Analytical vortex solutions to NavierStokes equation
Abstract : Fluid dynamics considers the physics of liquids and gases. This is a branch of classical physics and is totally based on Newton's laws of motion. Nevertheless, the equation of fluid motion, NavierStokes equation, becomes very complicated to solve even for very simple configurations. READ MORE

9. On the Matrix Riccati Equation
Abstract : The matrix Riccati equation appears in many optimal control and filtering problems. In this paper the Riccati equation is studied from an algebraic point of view, and the results are applied on optimal control of linear time invariant systems with quadratic loss... READ MORE

10. Numerical Vlasov–Maxwell Modelling of Space Plasma
Abstract : The Vlasov equation describes the evolution of the distribution function of particles in phase space (x,v), where the particles interact with longrange forces, but where shortrange "collisional" forces are neglected. A space plasma consists of lowmass electrically charged particles, and therefore the most important longrange forces acting in the plasma are the Lorentz forces created by electromagnetic fields. READ MORE