124 zoekresultaten voor “nonlinear algebraic equations” in de Publieke website
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Travelling patterns on Discrete Media
This thesis describes how complex and real-world relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or two-dimensional lattices.
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Blowup in the complex Ginzburg-Landau equation
Promotor: Prof.dr. A. Doelman, Co-promotor: V. Rottschäfer
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Diophantine equations in positive characteristic
In this thesis three different topics in number theory are studied.
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Deterministic equation solving over finite fields
Promotor: H.W. Lenstra
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Algebraic filters for filtered backprojection
Promotor: K.J. Batenburg, Co-promotor: A.W. van der Vaart, B. de Smit
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Principal algebraic actions of the discrete Heisenberg group
Promotor: Prof.dr. W.T.F. den Hollander
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Effective Methods for Diophantine Equations
Promotor: R. Tijdeman
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Algebraic techniques for low communication secure protocols
Promotor: R. Cramer
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Long term dynamics of stochastic evolution equations
Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans
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A fixed point approach towards stability of delay differential equations with applications to neural networks
Promotor: S.M. Verduyn Lunel, Co-Promotor: O.W. van Gaans
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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher
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Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel
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Mechanical metamaterials: nonlinear beams and excess zero modes
Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.
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Noisy Patterns: Bridging the gap between stochastics and dynamics
In this thesis, we study travelling waves in stochastic reaction-diffusion equations. We extend techniques from the deterministic theory for travelling waves to apply to the stochastic version, which allows us to compute the stochastic wave speed and shape, and draw conclusions on the stability of the…
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Division points in arithmetic
This thesis consists of three chapters, the first two of which concern division points of elements of the multiplicative group of a number field.
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Tentoonstelling 'The Drake Equation' - online
In Green Bank, Virginia staat een aantal grote radiotelescopen waarmee sterrenkundigen onderzoek doen naar objecten diep in het heelal. omdat deze telescopen heel zwakke radio signalen kunnen opvangen is het gebied daaromheen aangewezen als 'radiostille zone', zonder wifi, radio of telefoonsignaal.…
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Mathilde VerdamFaculteit der Sociale Wetenschappen
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Large Time Behaviour of Neutral Delay Systems
Promotor: S.M. Verduyn Lunel
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Smoothly breaking unitarity : studying spontaneous collapse using two entangled, tuneable, coherent amplifiers
The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.
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The stochastic geometry of non-Gaussian fields
Promotor: V. Vitelli, Co-promotor: J. Paulose
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The parabolic Anderson model and long-range percolation
Promotor: Prof.dr. F. den Hollander, G.Maillard
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Bayesian Inference for Gaussian Models
This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.
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Hydrodynamics and the quantum butterfly effect in Black Holes and large N quantum field theories
Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?
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The unit residue group
The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.
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Foam rheology near the jamming transition
Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe
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Patterns in natural systems
Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris
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Links between cohomology and arithmetic
Promotor: S.J. Edixhoven
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Algebraic filters for filtered backprojection
Promotie
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Geometric approach to evolution problems in metric spaces
Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans
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Counting problems for number rings
Promotor: H.W. Lenstra
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Advances in Survival Analysis and Optimal Scaling Methods
This thesis is based on five papers on several topics.
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Dynamics of the renin-angiotensin aldosterone system in dogs: circadian variations in physiological conditions and in relation to angiotensin-converting
Promotor: Prof.dr. M. Danhof
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Leiden SPSS project
Data theory research on the analysis on the multidimensional data
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Diophantine equations in positive characteristic
Promotie
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Quantum local asymptotic normality and other questions of quantum statistics
Promotor: R. Gill, Co-promotor: P. Massart
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A recipe for desert: analysis of an extended Klausmeier model
Promotores: Arjen Doelman, Jens Rademacher, Max Rietkerk
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Nonlinear Beams and Excess Zero Modes
Promotie
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Groups and fields in arithmetic
Promotor: Prof.dr. H.W. Lenstra
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Arithmetic of affine del Pezzo surfaces
In this thesis integral points on affine del Pezzo surfaces are studied.
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Waves and Patterns in Discrete Media: Bridging the Gaps
What happens to electrical waves that have to cross gaps in insulation material around nerves in the human body
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Symmetric Diophantine approximation over function fields
Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: J.H. Evertse
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Inverse Jacobian and related topics for certain superelliptic curves
To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.
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Van wijntranen tot wolkentransport: groot wiskundecongres in Leiden
De winnaar van de hoogste wetenschappelijke onderscheiding in de wiskunde, een verklaring waarom wijn traant en nog veel meer wiskundige theorie en toepassing. Van 8 tot en met 12 juli komen 550 wiskundigen samen in het centrum van Leiden om te spreken over differentiaalvergelijkingen.
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Onderzoek
The research of the Mathematical Institute is driven by the curiosity of its members and has many internal and external connections. It can be characterised as fundamental but with an open attitude towards applications.
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Studies of dust and gas in the interstellar medium of the Milky Way
Promotor: Prof.dr. A.G.G.M. Tielens
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Spin dynamics in general relativity
Promotor: J.W. van Holten
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Oude Sterrewacht Leiden
De Oude Sterrewacht van Leiden is de oudste nog bestaande universitaire sterrenwacht ter wereld. Dit historische monument speelt nog altijd een educatieve rol voor de Universiteit en de stad Leiden. Hier vindt u informatie over bezoeken van de Oude Sterrewacht en de geschiedenis, over het bezoekerscentrum,…
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HEPGAME
HEPGAME is a research project that combines the world’s fastest computer algebra system for High Energy Physics equations, FORM, with insights from artificial intelligence. The name combines High Energy Physics and Games.
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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotie
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The Robinson congruence in electrodynamics and general relativity
Promotor: Prof.dr. D. Bouwmeester