Promotor: Prof.dr. H.W. Lenstra

Promotor: H.W. Lenstra

Promotor: H.W. Lenstra, Jr., Co-promotor: B. de Smit

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Promotor: A. Achúcarro, Co-Promotor: J.W. van Holten

This thesis is about cosmological inflation and its relation to observations.

Promotor: V. Vitelli, Co-promotor: J. Paulose

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: J.H. Evertse

Promotores: T.H. Oosterkamp, N. de Jonge

In this thesis, we develop a novel technique called Optical Near-field Electron Microscopy (ONEM), which aims to combine the advantages of both optical and electron microscopy: the high resolution of electron microscopy and the low sample damage of optical microscopy.

Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

Promotor: S.J. Edixhoven

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

In this work we describe three methods to improve the performance of Quantum Field Theory calculations.

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

Promotor: S.J. Edixhoven Co-promotor: L. van Geemen, P. Parent

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

De oriëntatiefase is de eerste stap in het duale promotietraject en neemt ongeveer drie maanden in beslag. In deze fase verkennen we samen of jouw onderzoeksidee en het programma passen bij je professionele context en de academische eisen van een promotie.

In this thesis, we show that we can use Shimura’s CM theory to explicitly compute the Hilbert class field of any primitive quartic CM field.

Hoogleraar getaltheorie Manjul Bhargava heeft een Fields Medal gekregen, ook wel de ‘Nobelprijs voor de wiskunde’ genoemd. Dat is woensdag 13 augustus 2014 bekend gemaakt. Bhargava is hoogleraar in Princeton en daarnaast sinds 2010 Stieltjes hoogleraar in Leiden. 'Alles wat hij aanraakt verandert in…

In this thesis, classes of strongly interacting quantum field theories, have been studied.

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: M. Haverkorn

Hoe kan complexiteitswetenschap de transformatie van inlichtingen bevorderen?

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Promotores: P. Stevenhagen, A. Enge Co-Promotor: T.C. Streng

This thesis utilises the exceptional sensitivity and resolution of LOFAR to explore the low-frequency Universe, while simultaneously advancing the telescope's capabilities to enable new scientific discovery.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

Promotor: Prof.dr. P. Stevenhagen, Co-promotor: B. de Smit

Promotor: Prof.dr. E. Eliel, Co-Promotor: M.J.A. de Dood

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

This thesis studies the geometry of representation varieties and character stacks. These are spaces parametrizing the representations of a finitely generated group, typically the fundamental group of a compact manifold, into an algebraic group G.

This thesis explores how electron paramagnetic resonance (EPR) spectroscopy can be used to investigate key biochemical processes.

Promotor: Peter Stevenhagen

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

Promotor: S.J. Edixhoven

Promotoren: R. Tijdeman, A.K. Lenstra, Co-promotor: H.J.J. te Riele

Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.