Dissertations / Theses on the topic 'Brownsche Bewegung'
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Kiefer, Richard. "Multiple points on the Brownian frontier." Berlin mbv, 2009. http://d-nb.info/993935737/04.
Full textOverbeck, Ludger. "Konditionierungen der Super-Brownsche-Bewegung und verzweigender Diffusionen." Bonn : [s.n.], 1992. http://catalog.hathitrust.org/api/volumes/oclc/29044483.html.
Full textGantert, Nina. "Einige grosse Abweichungen der Brownschen Bewegung /." Bonn : Rheinische Friedrich-Wilhelms-Universität Bonn, 1991. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=005056873&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textBetz, Volker. "Gibbs measures relative to Brownian motion and Nelson's model." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=964465647.
Full textKollmann, Markus. "Dynamics and microstructure of interacting Brownian particle systems : electrokinetic effects, (quasi)-two-dimensional systems and sphere caging /." [S.l. : s.n.], 2001. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9674490.
Full textOverbeck, Ludger. "Konditionierungen der Super-Brownschen-Bewegung und verzweigender Diffusionen /." Bonn : [Math.-Naturwiss. Fak. der Univ.], 1992. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=005421103&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textDunkel, Jörn. "Relativistic Brownian motion and diffusion processes." kostenfrei, 2008. http://d-nb.info/991318757/34.
Full textRostek, Stefan. "Option pricing in fractional Brownian markets." Berlin Heidelberg Springer, 2009. http://d-nb.info/992310393/04.
Full textBurada, Poornachandra Sekhar. "Entropic transport in confined media." kostenfrei, 2008. http://d-nb.info/991298292/34.
Full textMurr, Rüdiger. "Dualitätsformeln für Brownsche Bewegung und für eine Irrfahrt mit Anwendung am Konvergenzergebnis von Donsker." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2011/4947/.
Full textSchmidt, Christian [Verfasser]. "Brownsche Bewegung und Heizung einzelner Mikropartikel durch stochastische Ladungsfluktuationen in einer Plasmarandschicht / Christian Schmidt." Kiel : Universitätsbibliothek Kiel, 2017. http://d-nb.info/1133492193/34.
Full textBlickle, Valentin. "Mikroskopische Thermodynamik kolloidaler Teilchen." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-34366.
Full textBleil, Stefan. "Transportprozesse in niedrig dimensionalen getriebenen kolloidalen Systemen." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-33258.
Full textDahms, René. "Long time behavior of a spherical mean field model." [S.l.] : [s.n.], 2002. http://edocs.tu-berlin.de/diss/2002/dahms_rene.pdf.
Full textNeuenkirch, Andreas. "Optimal approximation of stochastic differential equations with additive fractional noise /." Aachen : Shaker, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015005376&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textTeichmann, Jakob. "Stochastic modeling of Brownian and turbulent coagulation." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-220625.
Full textBraun, Marco. "Optically Controlled Manipulation of Single Nano-Objects by Thermal Fields." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-206342.
Full textHafner, Michael. "Klassifikation und Analyse finanzwirtschaftlicher Zeitreihen mit Hilfe von fraktalen Brownschen Bewegungen /." Frankfurt am Main [u.a.] : Lang, 2005. http://www.gbv.de/dms/zbw/478524765.pdf.
Full textPetrov, Eugene P., Rafayel Petrosyan, and Petra Schwille. "Translational and rotational diffusion of micrometer-sized solid domains in lipid membranes." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-139339.
Full textDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
Hertlein, Johann Christopher. "Messung kritischer Casimir-Kräfte mit TIRM." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-37124.
Full textWu, Ching-Tang. "Construction of Brownian Motions in Enlarged Filtrations and Their Role in Mathematical Models of Insider Trading." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 1999. http://dx.doi.org/10.18452/14364.
Full textIn this thesis, we study Gaussian processes generated by certain linear transformations of two Gaussian martingales. This class of transformations is motivated by nancial equilibrium models with heterogeneous information. In Chapter 2 we derive the canonical decomposition of such processes, which are constructed in an enlarged ltration, as semimartingales in their own ltration. The resulting drift is described in terms of Volterra kernels. In particular we characterize those processes which are Brownian motions in their own ltration. In Chapter 3 we construct new orthogonal decompositions of Brownian ltrations. In Chapters 4 to 6 we are concerned with applications of our characterization results in the context of mathematical models of insider trading. We analyze extensions of the nancial equilibrium model of Kyle [42] and Back [7] where the Gaussian martingale describing the insider information is specified in various ways. In particular we discuss the structure of insider strategies which remain inconspicuous in the sense that the resulting cumulative demand is again a Brownian motion.
Petrov, Eugene P., Rafayel Petrosyan, and Petra Schwille. "Translational and rotational diffusion of micrometer-sized solid domains in lipid membranes." Royal Society of Chemistry, 2012. https://tud.qucosa.de/id/qucosa%3A27824.
Full textDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Zehmisch, René. "Über Waldidentitäten der Brownschen Bewegung." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2011/4946/.
Full textGrecksch, Wilfried, and Christian Roth. "Approximation of a Quasilinear Stochastic Partial Differential Equation driven by Fractional White Noise." Universitätsbibliothek Chemnitz, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200800521.
Full textRings, Daniel. "Hot Brownian Motion." Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-102186.
Full textJannasch, Anita. "High performance photonic probes and applications of optical tweezers to molecular motors." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-103696.
Full textGrunert, Sandro. "Itô’s Lemma." Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200900979.
Full textSchneider, Felix [Verfasser]. "Ausbreitung einer Infektion durch ein System Brownscher Bewegungen / Felix Schneider." Mainz : Universitätsbibliothek Mainz, 2011. http://d-nb.info/1017570485/34.
Full textWesselhöfft, Niels. "Utilizing self-similar stochastic processes to model rare events in finance." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22360.
Full textComing from a sphere in statistics and mathematics in which the Normal distribution is the dominating underlying stochastic term for the majority of the models, we indicate that the relevant diffusion, the Brownian Motion, is not accounting for three crucial empirical observations for financial data: Heavy tails, long memory and scaling laws. A self-similar process, which is able to account for long-memory behavior is the Fractional Brownian Motion, which has a possible non-Gaussian limit under convolution of the increments. The increments of the Fractional Brownian Motion can exhibit long memory through a parameter H, the Hurst exponent. For the Fractional Brownian Motion this scaling (Hurst) exponent would be constant over different orders of moments, being unifractal. But empirically, we observe varying Hölder exponents, the continuum of Hurst exponents, which implies multifractal behavior. We explain the multifractal behavior through the changing alpha-stable indices from the alpha-stable distributions over sampling frequencies by applying filters for seasonality and time dependence (long memory) over different sampling frequencies, starting at high-frequencies up to one minute. By utilizing a filter for long memory we show, that the low-sampling frequency process, not containing the time dependence component, can be governed by the alpha-stable motion. Under the alpha-stable motion we propose a semiparametric method coined Frequency Rescaling Methodology (FRM), which allows to rescale the filtered high-frequency data set to the lower sampling frequency. The data sets for e.g. weekly data which we obtain by rescaling high-frequency data with the Frequency Rescaling Method (FRM) are more heavy tailed than we observe empirically. We show that using a subset of the whole data set suffices for the FRM to obtain a better forecast in terms of risk for the whole data set. Specifically, the FRM would have been able to account for tail events of the financial crisis 2008.
Kager, Wouter. "Conformally invariant paths in 2D statistical physics with a guide to Schramm-Löwner evolution /." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2006. http://dare.uva.nl/document/20362.
Full textWeiß, Richard Gregor. "The role of water in the kinetics of hydrophobic molecular recognition investigated by stochastic modeling and molecular simulations." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/18814.
Full textThe association of small molecules (ligands) to hydrophobic binding pockets plays an integral role in biochemical molecular recognition and function, as well as in various self-assembly processes in the physical chemistry of aqueous solutions. While the investigation of water contributions to the binding free energy (affinity) in equilibrium has attracted a great deal of attention in the last decade, little is known about the role of water in determining the rates of binding and kinetic mechanisms. For instance, what are the nanoscale water effects on ligand diffusion close to the hydrophobic docking site, and how can they be steered by the chemical composition of the pocket? Recent studies used molecular simulations of a simple prototypical pocket-ligand model to show that hydration fluctuations within the binding pocket can couple to the ligand dynamics and influence its binding rates. Since the hydration fluctuations, in turn, can be modified by the pocket’s geometry and hydrophobicity, the possibility exists to create well-controlled solvent fluctuations to steer the ligand’s binding rates. In this work, we pick up this appealing notion employing a theoretical multi-scale approach of a generic key-lock system in aqueous solution. We explore the influence of the physicochemical properties of the pocket on local ligand diffusivities and binding rates and demonstrate how the orientation of a (non-spherical) ligand couples to a pocket’s hydration fluctuations. We find that minor modulation in pocket depth can drastically speed up the binding rate and that, concurrently, binding to molded binding sites is advantageous for the rotational dynamics of the ligand. The results and discussion of this work shall, therefore, imply generic design principles for tailored solutions of functional host-guest systems as well as optimized drugs in biomedical applications.
Bux, Marc Nicolas. "Scientific Workflows for Hadoop." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19321.
Full textScientific workflows provide a means to model, execute, and exchange the increasingly complex analysis pipelines necessary for today's data-driven science. Over the last decades, scientific workflow management systems have emerged to facilitate the design, execution, and monitoring of such workflows. At the same time, the amounts of data generated in various areas of science outpaced hardware advancements. Parallelization and distributed execution are generally proposed to deal with increasing amounts of data. However, the resources provided by distributed infrastructures are subject to heterogeneity, dynamic performance changes at runtime, and occasional failures. To leverage the scalability provided by these infrastructures despite the observed aspects of performance variability, workflow management systems have to progress: Parallelization potentials in scientific workflows have to be detected and exploited. Simulation frameworks, which are commonly employed for the evaluation of scheduling mechanisms, have to consider the instability encountered on the infrastructures they emulate. Adaptive scheduling mechanisms have to be employed to optimize resource utilization in the face of instability. State-of-the-art systems for scalable distributed resource management and storage, such as Apache Hadoop, have to be supported. This dissertation presents novel solutions for these aspirations. First, we introduce DynamicCloudSim, a cloud computing simulation framework that is able to adequately model the various aspects of variability encountered in computational clouds. Secondly, we outline ERA, an adaptive scheduling policy that optimizes workflow makespan by exploiting heterogeneity, replicating bottlenecks in workflow execution, and adapting to changes in the underlying infrastructure. Finally, we present Hi-WAY, an execution engine that integrates ERA and enables the highly scalable execution of scientific workflows written in a number of languages on Hadoop.
Albers, Tony. "Weak nonergodicity in anomalous diffusion processes." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-214327.
Full textAnomalous diffusion is a widespread transport mechanism, which is usually experimentally investigated by ensemble-based methods. Motivated by the progress in single-particle tracking, where time averages are typically determined, the question of ergodicity arises. Do ensemble-averaged quantities and time-averaged quantities coincide, and if not, in what way do they differ? In this thesis, we study different stochastic models for anomalous diffusion with respect to their ergodic or nonergodic behavior concerning the mean-squared displacement. We start our study with integrated Brownian motion, which is of high importance for all systems showing momentum diffusion. For this process, we contrast the ensemble-averaged squared displacement with the time-averaged squared displacement and, in particular, characterize the randomness of the latter. In the second part, we map integrated Brownian motion to other models in order to get a deeper insight into the origin of the nonergodic behavior. In doing so, we are led to a generalized Lévy walk. The latter reveals interesting phenomena, which have never been observed in the literature before. Finally, we introduce a new tool for analyzing anomalous diffusion processes, the distribution of generalized diffusivities, which goes beyond the mean-squared displacement, and we analyze with this tool an often used model of anomalous diffusion, the subdiffusive continuous time random walk
Hartel, Andreas J. W. "Die laterale Diffusion des variablen Oberflächenglykoproteins in Trypanosomen und in artifiziellen Membranen." Doctoral thesis, 2013. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-90997.
Full textThe lateral diffusion of membrane anchored proteins plays a crucial role in many cell biological processes. The mobility of glycosylphosphatidylinositol- (GPI-) anchored proteins holds a pivotal function in many diseases such as, Creutzfeld-Jacob, Alzheimer and the African sleeping sickness. The cell surface of the pathogen causing African sleeping sickness, Trypanosoma brucei sp., is covered by a dense layer of identical GPI-anchored proteins. These variant surface glycoproteins (VSGs) are the major pathogenicity factor of the parasites in the circulation of the host and permit antigenic variation. During antigenic variation the VSG-coat has to be replaced by an immunologically distinct coat. For this purpose, the diffusion of VSG is essential. In the present study, the diffusion of VSG is analysed in living trypanosomes and in artificial membranes. By this, the impact of the lateral protein density, the Nglycosylation and the protein size on the lateral diffusion are studied systematically. The diffusion of VSG in the surface coat of the trypanosome is at the edge of a molecular crowding threshold. Importantly, this crowding threshold is not exceeded. N-glycosylation enables the diffusion of the VSG at the edge of the crowding threshold. Further, the diffusion coefficient of GPI-anchored proteins is strongly affected by the size of the proteins. In conclusion, the present study shows, that the VSG-coat of the trypanosomes is a system, which is highly adapted to its requirements. Any interference with either, the lateral density, the N-glycosylation or the VSG-size would hamper the pathogenicity of the parasite. The local distribution of GPI-anchored proteins is an essential component of biological membranes, thus the results of the present work will have an impact not only on the VSG-coat, but also give further understanding on the dynamics of proteins in crowded spaces
Teichmann, Jakob. "Stochastic modeling of Brownian and turbulent coagulation." Doctoral thesis, 2015. https://tubaf.qucosa.de/id/qucosa%3A23112.
Full textJannasch, Anita. "High performance photonic probes and applications of optical tweezers to molecular motors." Doctoral thesis, 2012. https://tud.qucosa.de/id/qucosa%3A26463.
Full textRings, Daniel. "Hot Brownian Motion." Doctoral thesis, 2012. https://ul.qucosa.de/id/qucosa%3A11815.
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