The

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.

Promotor: K.J. Batenburg

The Math trail Leiden has been developed as part of a final project of the Master specialisation Science Communication and Society of Leiden University. During the trail you will be able to see the city Highlights while getting various challenging mathematical questions. You will find out how much math…

As of 1 October, David Holmes has been appointed full professor of Pure Mathematics at the Mathematical Institute (MI). His work lies at the intersection of algebra, geometry and number theory.

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

The application procedure is broken down into three parts.

As of 1 June, Serge Fehr has been appointed as Professor Quantum information theory at the Leiden Mathematical Institute (MI). Fehr is employed by Centrum Wiskunde & Informatica (CWI) and as of his appointment works one day a week at the MI. Fehr’s research is focused on quantum cryptology and will…

Promotores: Prof.dr. H Lenstra, Prof.dr. A Facchini (Padova University)

A semi-empirical version of the specific reaction parameter approach to density functional theory (SRP-DFT) has been remarkably successful at predicting dissociative chemisorption probability vs. incidence energy curves for reactions on metal surfaces. New quantum Monte Carlo (QMC) calculations on the…

Professor of Computer Science Joost Batenburg has received half a million euros from the Dutch Research Council (NWO) to improve the conservation of historical paintings with 3D X-ray imaging.

Dynamical systems describe the evolution of objects in a space over time and may be used to model physical phenomena. Due to this, much research is dedicated to understanding the mathematics of dynamical systems.

Alumnus Pim Spelier is one of the two winners of the ASML Graduation prizes for mathematics students. He used a new method to solve single polynomial equations. Bachelor student Jorre The wins one of the ORTEC Incentive prizes for the best study results during the first year. On 30 November, the Royal…

An international committee has assessed the maths research at all Dutch universities over the period from 2009 to 2014. Maths in Leiden was awarded the ‘highest’ grade ( a 1) on all criteria: quality of the research, societal relevance and sustainability.

Mathematicians from Bordeaux, Leiden and Padua have been working together for 20 years. In 2004, they started a two-year mathematics master's degree in Algebra, Number Theory and Geometry (Algant). They celebrated the 20th anniversary of this consortium at the Algant graduation ceremony in Leiden.

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

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.

Promotor: H.W. Lenstra

Promotores: K.J. Batenburg, B. Koren

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

Floreat et crescat. Flourish and grow. That was what was wished for the Mathematical Institute at its opening. Now, the institute proudly celebrates its 70th anniversary. Time to reflect on how it all began. And importantly, how is it doing now?

PhD defence

The book ‘The Riemann Hypothesis: A Million Dollar Problem’ has been elected by the Mathematical Association of America (MAA) as one of the best books on mathematics. On 13 January assistant professor at Leiden University Roland van der Veen and co-author Jan van de Craats will receive the MAA Beckenbach…

Peter Stevenhagen delivered daily lectures at the Syed Babar Ali School of Science and Engineering in Lahore, in collaboration with ICTP, a well-known UNESCO institute in Trieste. The aim is to enhance it he knowledge of students from low- and middle-income countries. ‘By teaching here, I can truly…

Bradley Efron is a statistician from Stanford University best known for proposing the bootstrap resampling technique, which has had a major impact in the field of statistics and virtually every area of statistical application. The bootstrap was one of the first computer-intensive statistical techniques,…

Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong

Promotor: A. Doelman, Co-promotor: M.F.E. de Jeu

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.

This thesis consists of three papers that are centered around the common theme of Hausdorff uo-Lebesgue topologies and convergence structures on vector lattices and on vector lattices and vector lattice algebras of order bounded operators.

More than twenty students were awarded an ALGANT diploma, the prestigious two-year master's in Algebraic Geometry and Number Theory from the Mathematical Institute of eight collaborative Universities on July 18th. At the graduation ceremony in Padua, Italy, five students who had spent their second year…

Seminar

Seminar

Seminar

Seminar

We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.

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

Five mathematics students from Leiden University and their coach stood out this summer in Bulgaria at the IMC: the International Mathematics Competition for university students. Lance, Ryan, Casper, Mads and Lars tackled tough maths problems and also made the most of the Bulgarian sunshine.

Because thin systems can deform along the thickness with relative ease, the interplay between surface mechanics and geometry plays a fundamental role in sculpting their three-dimensional shape.

Conference

More than twenty international students have received an ALGANT diploma, the master's in Algebraic Geometry and Number Theory from the Mathematical Institute, in collaboration with other European universities. Anti-bureaucratic creativity was needed to align all the rules with those Brussels.

PhD defence

Morality, mathematics, geometry, geography, music, navigation, and language are traditionally viewed as uniquely human cultural achievements and abilities. The study of their development and variation is classified as part of the humanities and social sciences. These fields have been mainly studied…

PhD defence

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

Promotor: Prof.dr. H.W. Lenstra

Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta

Through the microcredentials offered by the Faculty Science at Leiden University, you can take individual courses at university level.

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

The research of the Applied Mathematics cluster is concerned with such diverse topics as dynamical systems, representation theory, differential equations and pattern recognition.