354 search results for “nonlinear algebraic equations” in the Public website

Travelling patterns on Discrete Media
This thesis describes how complex and realworld relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or twodimensional lattices.

Algebra, Geometry and Number Theory
The research of the Algebra, Geometry and Number Theory programme ranges from fundamental mathematical theory to algorithms and applications.

Blowup in the complex GinzburgLandau equation
Promotor: A. Doelman, Copromotor: V. Rottschäfer

Diophantine equations in positive characteristic
In this thesis three different topics in number theory are studied.

Graphing algebraic formulas
Many students have difficulties to read and give meaning to algebraic formulas. In this study it is explored whether graphing formulas with pen and paper will improve students’ability to reason with algebraic formulas.

Deterministic equation solving over finite fields
Promotor: H.W. Lenstra

Crossed product algebras associated with topological dynamical systems
Promotor: S.M. Verduyn Lunel, Copromotoren: M.F.E. de Jeu, S.D. Silvestrov

A fixed point approach towards stability of delay differential equations with applications to neural networks
Promotor: S.M. Verduyn Lunel, CoPromotor: O.W. van Gaans

Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel

On the Galois closure of commutative algebras
Promotores: H.W. Lenstra, B. Erez, Copromotor: L. Taelman

Mechanical metamaterials: nonlinear beams and excess zero modes
Mechanical metamaterials are manmade materials which derive their unusual properties from their structure rather than their composition.

Principal algebraic actions of the discrete Heisenberg group
Promotor: Prof.dr. W.T.F. den Hollander, Prof. dr. E.A. Verbitskiy

Enumerative arithmetic
This thesis consists of three chapters. Each chapter is on a different subject. However, all three chapters address issues that arise in counting arithmetically interesting objects.

Positive representations of algebras of continuous functions
If X is a locally compact Hausdorff space, then a representation of the complex C* algebra C_0(X) on a Hilbert space $H$ is given by a spectral measure that takes its values in the orthogonal projections on $H$.

Algebra, Geometry and Number Theory (MSc)
The master’s specialisation Algebra, Geometry and Number Theory at Leiden University is aimed at students who wish to acquire a profound knowledge of one of the areas within pure mathematics. There is a strong theme dealing with algebra and number theory as well as a strong theme dealing with topology…

Algebra, Geometry and Number Theory
The research of the Algebra, Geometry and Number Theory cluster tries to bridge the gap between abstract theory and the world of algorithms and applications.

Effective Methods for Diophantine Equations
Promotor: R. Tijdeman

Jaap Murre
Wiskunde en Natuurwetenschappen

Class invariants for tame Galois algebras
Promotores: B. Erez, P. Stevenhagen, CoPromotor: B. de Smit

Periodic pulse solutions to slowly nonlinear reactiondiffusion systems
Promotor: A. Doelman, Copromotor: J.D.M. Rademacher

Long term dynamics of stochastic evolution equations
Promotor: S.M. Verduyn Lunel, Copromotor: O. van Gaans

NWO tenure track grant in arithmetic algebraic geometry
Within the context of the four national mathematics clusters, NWO has awarded seven proposals for tenure track positions. One of these was on 'Moduli, metrics, models, and arithmetic of Shimura varieties' by Bas Edixhoven from the Leiden Mathematical Institute.

Ronald Cramer
Wiskunde en Natuurwetenschappen

Martin Lubke
Wiskunde en Natuurwetenschappen

Martin Bright
Wiskunde en Natuurwetenschappen

M. Bhargava
Wiskunde en Natuurwetenschappen

Mima Stanojkovski
Wiskunde en Natuurwetenschappen

Hendrik Lenstra
Wiskunde en Natuurwetenschappen

Bas Edixhoven
Wiskunde en Natuurwetenschappen

Roland van der Veen
Wiskunde en Natuurwetenschappen

Peter Bruin
Wiskunde en Natuurwetenschappen

David Holmes
Wiskunde en Natuurwetenschappen

Marco Streng
Wiskunde en Natuurwetenschappen

'Maths is often way ahead of practical applications'
A secret code that we currently use to send emails securely is based on the maths of a century ago. The geometrical surfaces that Dino Festi studied during his PhD research will perhaps be used in future codes or new physics. PhD defence 5 July.

Algebraic techniques for low communication secure protocols
Promotor: R. Cramer

Ronald van Luijk
Wiskunde en Natuurwetenschappen

Bart de Smit
Wiskunde en Natuurwetenschappen

JanHendrik Evertse
Wiskunde en Natuurwetenschappen

Robin de Jong
Wiskunde en Natuurwetenschappen

Peter Stevenhagen
Wiskunde en Natuurwetenschappen

Joost Batenburg
Wiskunde en Natuurwetenschappen

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.

Realtime tomographic reconstruction
With tomography it is possible to reconstruct the interior of an object without destroying.

isomorphisms, order antimorphisms and their interplay with Jordan algebra structures
In dit onderzoek worden orde isomorfismen en orde antimorfisme bestudeerd in het algemene kader van partieel geordende vector ruimten.

Julian Karch
Faculteit der Sociale Wetenschappen

Peter Koymans
Wiskunde en Natuurwetenschappen

Mathilde Verdam
Faculteit der Sociale Wetenschappen

Henk Kelderman
Faculteit der Sociale Wetenschappen

Large Time Behaviour of Neutral Delay Systems
Promotor: S.M. Verduyn Lunel

Julian Lyczak
Wiskunde en Natuurwetenschappen