195 search results for “geometrie” in the Public website

Parameter optimization toward optimal microneedlebased dermal vaccination
Microneedlebased vaccination has several advantages over vaccination by using conventional hypodermic needles.

Assembling anisotropic colloidal building blocks
This PhDthesis presents a study on micronsized particles, socalled colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that selfassembly into larger structures.

The formation of complex organic molecules in dense cloudsSweet results from laboratory
Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.

About us
The Mathematical Institute is one of the eight institutes of the Faculty of Science. The institute operates as a single unit defined by the activities of its members.

Gauss's theorem on sums of 3 squares, sheaves, and Gauss composition
Promotor: Bas Edixhoven, Promotor: Qing Liu

Prepare for your studies
You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start as you embark on your studies at Leiden University.

Morphodynamic equilibria in tidal inlet systems: sensitivity to geometrical variations
A tidal basin is an inland sea which is almost entirely enclosed by land and connected to the open sea by a tidal inlet. Through the tidal inlets interaction takes place between the tidal basin and the open sea.

Theoretical Chemistry
The main goal of the THEOR CHEM group, headed by Prof. GeertJan Kroes, is to characterize, and to accurately predict the outcome of chemical reactions at gassolid and liquidsolid interfaces. Here the solid surface is typically a metal or an ice surface. These goals are important to many areas in…

Refined tautological relations on moduli spaces of curves
Robin de Jong

Martin van Exter Lab  Quantum Optics and LightMatter Interaction
Research in the van Exter lab focuses on quantum aspects of light and lightmatter interaction. One of our longterm goals is to develop a reliable quantum memory, based on a single emitter in an open micro cavity.

Organisation
The Mathematical Institute has a rather liberal management structure. Tasks and responsibilities are distributed among the staff. Important decisions are taken by consensus.

Claude Perrault and the knowledge of architectural proportion. The relation between culture and cognition in historical perspective
Knowledge and culture subproject 3:
 Application deadlines

Information activities
Get to know us through our online and inperson events for prospective students!

Education
The Mathematical Institute offers a bachelor programme in Mathematics and master programmes in Mathematics and in Statistical Science. The institute also teaches many mathematics and statistics courses in other academic programmes of the university. About 50 PhD students work on a thesis in a small…

Extracurricular
Are you interested in taking up an extra challenge during your master’s programme? Do you want to develop your own personal leadership style?

Metals in Catalysis, Biomimetics & Inorganic Materials
Coordination chemistry is the chemistry of metal atoms

Packaging and accessing DNA molecules
Our DNA molecules are packaged by proteins in compact structures. The aim of this project is to understand how modern gene editing techniques nevertheless get access to their target in the DNA.

Required documents
When you apply for admission, you’ll be asked to submit several documents.

Abstract patterns and representations: the recognition of geometric ornament
On May 17th, Arthur Crucq succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Arthur on this great result.

Music Cognition
Knowledge and culture subproject 1:

Studying abstract mathematical equations using tangible surfaces
On January 5, Rosa Winter will obtain her doctorate in arithmetic geometry. She researched solutions of equations that define socalled ‘del Pezzo surfaces’. ‘I like geometry because I can imagine and draw the shapes and objects,’ says Winter. ‘That makes abstract mathematics feel more tangible.’

Student life
Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

A new window on the Universe
Rottgering

Setup: MRFM
MRFM combines the principles of magnetic resonance and atomic force microscopy.

Research
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.

Rubicon grant for Leiden physicist: why do leaves of a tree always grow in the same shape?
PhD candidate Ludwig Hoffmann will spend two years at Harvard University in the US thanks to a Rubicon grant he won on April 11. Using theoretical models he studies biological tissues, for example during morphogenesis. This is the process that causes tissue or organisms to develop their shape. ‘This…
 Interdisciplinary Activity Grants

Research
Research in the PODgroup addresses all features of random phenomena – modelling, structuring, analysis, control, optimisation – and covers both fundamental and applied aspects.

In search of the atoms of mathematics
Combining geometry and number theory. That is what Dr Jan Vonk of the Institute of Mathematics receives a Vidi grant for today. ‘By fusing these two disciplines we may be able to solve a centuryold mathematical problem.’

Peter Stevenhagen scientific director Mathematical Institute
Professor of number theory Peter Stevenhagen has been appointed to up the position of scientific director of the Mathematical Institute of Leiden University on 15 September. In this position he is the successor of Aad van der Vaart, who led the institute for the last four years.

Algant Consortium meetings in Leiden 2326 February
On Saturday 23 and Sunday 24 February, the yearly ‘Algant doctorate candidates and academics’ meeting will take place. The Algant Consortium consists of 8 universities on 4 continents and offers a twoyear integrated master and a joint doctorate programme in pure mathematics, with a strong emphasis…

Tuition fees
Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch highereducation qualifications.

Plenary speakers
The following speakers have agreed to give plenary talks.

Redox catalysis for a sustainable energy infrastructure
The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multielectron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…

Prior Research
The van Exter group has an extensive history of prior research in classical and quantum optics. As former part of the group of Han Woerdman, we have studied topics as diverse as:

In Memoriam  Bas Edixhoven
On January 16, 2022, our respected and beloved colleague Prof. dr. Bas Edixhoven passed away after a short period of serious illness.

ERC Advanced Grant for cryptographer Ronald Cramer
Ronald Cramer has been awarded an ERC Advanced Grant for his proposal 'Algebraic Methods for Stronger Crypto'. He will receive 2.5 million euro for research in the upcoming five years.

Duong Hoang Dung first Algant PhD student to receive a doctoral degree
Vietnamese mathematician Dung is the first to complete his dissertation within the Erasmus Mundus Algant PhDprogramme, under the supervision of Prof.dr.Hendrik Lenstra. The defence of his thesis ‘Profinite groups with a rational probabilistic zeta function’ will take place on 14 May 2013 on 13h45 in…

Physics Nobel Prize for former Leiden Lorentz Professor
The 2017 Nobel Prize in Physics has been awarded to Rainer Weiss, Barry Barish and Kip Thorne for their work on the measurement of gravitational waves. Thorne was Lorentz Professor in 2009 in Leiden. Physicist Jan Willem van Holten explains why this is such an important discovery. ‘A new branch of astrophysics…

Djordjo Milovic wins Stieltjes prize
On 4 April 2018 the Stieltjes prize 2016 was awarded to Djordjo Milovic for his PhD thesis 'On the 16rank of class groups of quadratic number fields'.

Application procedure
The application procedure is broken down into three parts.

Two NWO grants for Johan Rooryck
LUCL is pleased to announce that Professor Johan Rooryck has been awarded both an NWO Horizon Grant for his project entitled 'Knowledge and culture', and an NWO Vrije Competitie Grant for his project entitled 'Lend me your ears: the grammar of (un)transferable possession' for a total of €2.75m.

Leiden scientists develop topological barcodes for folded molecules
The team of Alireza Mashaghi at the Leiden Academic Centre for Drug Research has found a way to determine and classify the shape of proteins. Their new theory defines the topology of proteins as a simple and precise barcode that allows the identification of all types of folds. ‘This barcode enables…

Veni grant for ten Leiden researchers
Ten Leiden researchers have been awarded a Veni grant by the Dutch Research Council (NWO). The grant, of up to 280,000 euros, will enable them to elaborate their ideas over a period of three years.

Reedijk Symposium 2012  Guest Lecturers: Prof. Oliver Einsle & Prof. Nigel Scrutton
On Friday October 26th 2012 the third annual Jan Reedijk LIC Symposium will be held. The main lectures of the day will be

Math students win medals for clever proofs on elegant problems
Mathematics students Pim Spelier and Bob Zwetsloot both won a medal at the International Mathematics Competition for University Students (IMC) 2018 in Bulgaria. Spelier talks about the competition, his preparations, and a mistake that almost costed him his good ranking.

This Week's Discoveries  19 November 2019
Lecture

Female Researchers in the Spotlight for Physics & Astronomy Ladies' Day
On Thursday November 15th, Leiden University organizes its Physics & Astronomy Ladies' Day for female high school students. To mark this festive day, we put the spotlight on five female researchers, who talk about their experiences working in science.

18 Veni subsidies for Leiden, 8 for our faculty!
This year, NWO has awarded a Veni subsidy to 143 young researchers who have recently obtained their PhD. 17 of these researchers are at Leiden University and one works at the LUMC. The successful applicants will each receive 250,000 euro to develop their ideas and carry out research over a period of…