This PhD thesis concerns the topic of arithmetic geometry. We address three different questions and each of the questions in some way is about counting how big some set is or can be.

Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver

This thesis considers multi-prover commitment schemes whose security is based on restrictions on the communication between the provers.

Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik

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

Promotores: J.N. Kok, H.J. Hoogeboom

Promotores: A.H. Meijer, H.P. Spaink

In this thesis integral points on affine del Pezzo surfaces are studied.

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

Studievoorlichting

Studievoorlichting

Ontdek de zomerschool Frontiers of Children’s Rights van Leiden Law Academy, dit jaar over klimaatverandering, conflict en migratie'. Lees hier meer!

Tot wel 50% van de mensen met de ziekte van Parkinson ontwikkelt na verloop van tijd cognitieve achteruitgang; deze studie onderzoekt het gebruik van ‘oefeneffecten’ op neuropsychologische tests als een vroege voorspeller van cognitieve achteruitgang.

This course explores international arbitration as one of the most common methods of international dispute settlement. You will gain an in-depth understanding of international arbitration through the analysis of its role as a mechanism of dispute settlement, its institutions, the fields of law it is…

Risk has become one of the defining features of modern society. This course examines various types of safety and security risks, and how these are perceived and dealt with in a wide array of professional and academic fields, ranging from criminology, counter-terrorism and cyber security, to philosophy,…

Op 8 juli 2020 verdedigde Andres Sarmiento Lamus zijn proefschrift 'The Proliferation of Dissenting Opinions in International Law'. Het promotieonderzoek is begeleid door promotoren prof.dr. L.J. van den Herik en prof.dr. Y.A.A.S. Radi (UCLouvain).

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

This dissertation presents a new perspective on the life, work and character of the Dutch physical chemist Jacobus Henricus van ’t Hoff, first recipient of the Nobel Prize in Chemistry, and one of the most important and colourful scientists in Dutch history. The image of Van ’t Hoff that emerges from…

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

Machine Learning is becoming a more and more substantial technology for industry.

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet

In this thesis, Quantum computing, norms, and polynomials, we investigate the interplay between quantum mechanics, complexity theory, and functional analysis, three central areas of physics, computer science, and mathematics, respectively.

In this work the reconstruction of a tau neutrino signal in the KM3NeT detector is discussed.

Promotor: Robert Tijdeman, Co-promotor: Cornelis Kraaikamp

In this book liposomes are explored as delivery system for allergen-specific immunotherapy. Both cationic and anionic formulations are prepared with Bet v 1, one of the allergens in birch pollen.

A Josephson junction is a device where a thin insulating barrier or a nanostructure is placed between two superconducting leads. Such a junction is essential to superconducting qubits that store quantum information due to its anharmonic spectrum.

Structural variants (SVs) are the hidden architecture of the human genome, and are critical for us to understand diseases, evolution, and so on.

Studievoorlichting

Studievoorlichting

Studievoorlichting

Studievoorlichting

Webinar with Q&A

Met grote trots kondigt het Europa Instituut aan dat Universiteit Leiden de regionale finale in Praag van de European Law Moot Court (ELMC) competitie gewonnen heeft!

In this dissertation (titled: Exploring the Synergies between Transfer in Reinforcement Learning and Procedural Content Generation) we explore how the two research fields named in the title, namely Transfer in Reinforcement Learning (TRL) and Procedural Content Generation (PCG) can synergize togethe…

Did the Jochids leave their mark on the Grand Duchy, taking into account that the Lithuanian state was one of the main successor states of the Great Horde in the 16thCentury?

De Faculteit der Wiskunde en Natuurwetenschappen streeft naar impact van haar onderzoek en onderwijs op de samenleving. Daarvoor werkt de faculteit in binnen- en buitenland samen met andere universiteiten en instituten, maatschappelijke partners, het bedrijfsleven én met het brede publiek.

Today, knowledge is the most crucial element to stimulate organizational competitiveness and economic development.

Promotores: C.A.J. Knibbe, D. Tibboel, Co-Promotor: P. Bruins

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.

The origin and evolution of galaxies are closely linked to many different physical phenomena.

This thesis is is made of three parts. The first part describes a generalization of the Chabauty's method, that can be used to determine the rational points of a curve such that s+g>r+1, where g is the genusof the curve, r is the rank of the Mordell-Weil group of the jacobian of the curve and s is…

A convolutional neural network (CNN) is a biologically inspired algorithm, highly capable at processing images and videos.

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

Promotor: Prof.dr. A.G.G.M. Tielens, Prof.dr. C. Dominik (UvA)

Promotor: S.J. Edixhoven

Promotor: Prof.dr. P. Stevenhagen, Jan-Hendrik Evertse, Co-promotor: Pascal Autissier

The aim of this thesis is to develop and study a robust and adaptable scaffold for supramolecular polymer self-assembly in water.