Sökning: "Henrik Hult"
Visar resultat 6 - 10 av 20 avhandlingar innehållade orden Henrik Hult.
6. Asymptotics, weak convergence and duality in population genetics
Sammanfattning : This thesis consists of four papers on asymptotic results and stochastic duality for some processes in mathematical population genetics. The focus is on Wright-Fisher diffusions and coalescent processes, which model, respectively, the evolution of frequencies of genetic types and genealogies in a population,and play a key role in inference on genetic data sets. LÄS MER
7. Markov chain Monte Carlo for rare-event simulation in heavy-tailed settings
Sammanfattning : .... LÄS MER
8. Rare-event simulation with Markov chain Monte Carlo
Sammanfattning : Stochastic simulation is a popular method for computing probabilities or expecta- tions where analytical answers are difficult to derive. It is well known that standard methods of simulation are inefficient for computing rare-event probabilities and there- fore more advanced methods are needed to those problems. LÄS MER
9. On the Snell envelope approach to optimal switching and pricing Bermudan options
Sammanfattning : This thesis consists of two papers related to systems of Snell envelopes. The first paper uses a system of Snell envelopes to formulate the problem of two-modes optimal switching for the full balance sheet in finite horizon. LÄS MER
10. Some aspects of optimal switching and pricing Bermudan options
Sammanfattning : This thesis consists of four papers that are all related to the Snell envelope. In the first paper, the Snell envelope is used as a formulation of a two-modes optimal switching problem. The obstacles are interconnected, take both profit and cost yields into account, and switching is based on both sides of the balance sheet. LÄS MER