Projects per year
Personal profile
Research interests
I am working in probability, more specifically on models at the intersection between discrete and continuous probability.
My research fits into three main research areas. First of all I am interested in spatial population models that are inspired by evolutionary biology and are often described in terms of stochastic partial differential equations. Here, I am trying to understand the large scale behaviour of interfaces that arise for example between different types. Secondly, I am working on stochastic processes in random environments. Currently I am working on branching processes whose behaviour is influenced by local inhomogeneities. Finally, I am interested in evolving random graphs and stochastic processes that are defined on random graphs.
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Projects
- 1 Finished
Research Output
- 17 Article
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Entrance laws for annihilating Brownian motions
Hammer, M., Ortgiese, M. & Vollering, F., 10 Jan 2021, (Acceptance date) In: Stochastic Processes and their Applications. 26 p.Research output: Contribution to journal › Article › peer-review
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A phase transition for preferential attachment models with additive fitness
Ortgiese, M. & Lodewijks, B., 18 Dec 2020, In: Electronic Journal of Probability. 25, 54 p., 146.Research output: Contribution to journal › Article › peer-review
Open AccessFile5 Downloads (Pure) -
Fluctuations in a general preferential attachment model via Stein's method
Betken, C., Döring, H. & Ortgiese, M., 1 Dec 2019, In: Random Structures and Algorithms. 55, 4, p. 808-830 23 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Citation (Scopus)9 Downloads (Pure) -
A new look at duality for the symbiotic branching model
Hammer, M., Ortgiese, M. & Vollering, F., 30 Sep 2018, In: Annals of Probability. 46, 5, p. 2800-2862 63 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile48 Downloads (Pure) -
Local neighbourhoods for first-passage percolation on the configuration model
Dereich, S. & Ortgiese, M., 19 Nov 2018, In: Journal of Statistical Physics. 173, 3-4, p. 485–501 17 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Citation (Scopus)24 Downloads (Pure)
Thesis
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Stochastic processes in random environment
Author: Ortgiese, M., 1 Sep 2009Supervisor: Morters, P. (Supervisor)
Student thesis: Doctoral Thesis › PhD
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