Search for dissertations about: "first passage time"
Showing result 1 - 5 of 69 swedish dissertations containing the words first passage time.
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1. My first-passage : target search in physics and biology
Abstract : Random walks and diffusing particles have been a corner stone in modelling the random motion of a varying quantity with applications spanning over many research fields. And in most of the applications one can ask a question related to when something happened for the first time. That is, a first-passage problem. READ MORE
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2. Recursive Methods in Urn Models and First-Passage Percolation
Abstract : This PhD thesis consists of a summary and four papers which deal with stochastic approximation algorithms and first-passage percolation. Paper I deals with the a.s. limiting properties of bounded stochastic approximation algorithms in relation to the equilibrium points of the drift function. READ MORE
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3. Ruin probabilities and first passage times for self-similar processes
Abstract : This thesis investigates ruin probabilities and first passage times for self-similar processes. We propose self-similar processes as a risk model with claims appearing in good and bad periods. Then, in particular, we get the fractional Brownian motion with drift as a limit risk process. READ MORE
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4. Accessibility percolation and first-passage percolation on the hypercube
Abstract : In this thesis, we consider two percolation models on the n-dimensional binary hypercube, known as accessibility percolation and first-passage percolation. First-passage percolation randomly assigns non-negative weights, called passage times, to the edges of a graph and considers the minimal total weight of a path between given end-points. READ MORE
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5. Bridges with Random Length and Pinning Point for Modelling the Financial Information
Abstract : The impact of the information concerning an event of interest occurring at a future random time is the main topic of this work. The event can massively influence financial markets and the problem of modelling the information on the time at which it occurs is of crucial importance in financial modelling. READ MORE