877 search results for “approximation theory” in the Public website

On padic decomposable form inequalities
Promotor: Prof.dr. P. Stevenhagen, JanHendrik Evertse, Copromotor: Pascal Autissier

Symmetric Diophantine approximation over function fields
Promotor: Prof.dr. P. Stevenhagen, CoPromotor: Dr. J.H. Evertse

Probability theory
The research programme Probability Theory focuses on probability theory and on operations research.

Theory
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…

Theory
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…

Concrete arithmetic between geometry and number theory
Bruin

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

Key Issues in Historical Theory
This book addresses the definition of history and how people are influenced by it.

On continued fraction algorithms
Promotor: Robert Tijdeman, Copromotor: Cornelis Kraaikamp
 Diplomatic Theory

Mersenne primes and class field theory
Promotor: H.W. Lenstra, Jr., Copromotor: B. de Smit

Primitivism and architectural theory
Subproject of

Modular curves, Arakelov theory, algorithmic applications
Promotor: S.J. Edixhoven, Copromotor: R.S. de Jong
 Econophysics & Network Theory

Mathematician Peter Koymans wins KWG PhD prize
Leiden PhD student Peter Koymans has been declared ‘best mathematics PhD student’ by the Royal Dutch Mathematical Society (KWG). He received the prize at the Dutch Mathematical Congress (NMC) on 24 and 25 April. With his talk about his research into the CohenLenstra conjecture, Koymans left eleven…

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.

The Death of Archaeological Theory
The Death of Archaeological Theory, edited by John Bintliff and Mark Pearce, addresses the provocative subject of whether it is time to discount the burden of somewhat dogmatic theory and ideology that has built up over the last 25 years.

Egidius Smeets
Science

Faster number theory, safer cryptography
Developing a method to simplify polynomials in complex curves

Theorie van fermionpariteitomkeringen in supergeleiders
Majorana meets a mermaid

Geometric approach to evolution problems in metric spaces
Promotor: S.M. Verduyn Lunel, Copromotor: O.W. van Gaans

On the randommatrix theory of Majorana fermions in topological superconductors
The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

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…

Sentencing: theory and practice
Sentencing is becoming increasingly complex for the courts. Legal scholars and criminologists from Leiden document the process of sentencing in the Netherlands. They use this knowledge to advise legislators and those who implement this legislation on how to make sentencing more consistent and effect…

The Oxford Handbook of Morphological Theory
Edited by linguists Jenny Audring (Leiden University) and Francesca Masini (University of Bologna), this is a unique handbook with a focus on morphology theories rather than morphological data. It covers a wide array of morphological theories, from traditional twentieth century models to current theoretical…

Jan Zaanen Group (Quantum Matter Theory)
The focus of our theoretical physics research is the nature of macroscopic matter that is in one or the other way still in the grip of quantum physics.

Koenraad Schalm Group (String Theory and Experiment)
Truth is stranger than fiction. In 1997 Juan Maldaceña discovered a remarkable dictionary that translates equation for equation the physics of black holes in string theory into the more conventional physics of quantum mechanics of interacting particles. The remarkable possibility exists that…

Cultural Analysis: Literature and Theory (MA)
The master in Cultural Analysis: Literature and Theory at Leiden University focuses on the study of literature from a comparative and theoretical perspective, with a special emphasis on literary movements and genres of the 19th, 20th, and 21st centuries. It covers a wide range of languages and cultures…

Deciphering fermionic matter: from holography to field theory
Promotor: K.E. Schalm, Copromotor: S.S. Lee

Politics of Withdrawal Media, Arts, Theory
'Politics of Withdrawal' considers the significance of practices and theories of withdrawal for radical thinking today.

University Lecturer in Historical Theory / General History
Humanities, Institute for History

Diego Garlaschelli Group (Econophysics and Network Theory)
We study the structure, dynamics and physics of complex networks emerging from the intricate interconnectedness of the constituents of large systems.

International Humanitarian Law in Theory and Practice
The Summer School on International Humanitarian Law is designed by the Grotius Centre KalshovenGieskes Forum on International Humanitarian Law. The 6th edition will take place from 4 to 8 July 2022 in The Hague.

Memory: concepts and theory
The terms ‘social’ , ‘collective’ or ‘public’ memory, are often contrasted with ‘private’, ‘individual’ or ‘personal’ memory. All these terms derive from a fairly new and interdisciplinary scholarly field that is often referred to as ‘memory studies’, and that according to some critics has developed…

Gauge theory and nematic order : the rich landscape of orientational phase transition
Promotor: J. Zaanen

Theoryenriched practical knowledge in mathematics teacher education
This study looks at the question of how and at what level students in primary teacher education can integrate theory and practice, and how the organisation of their learning environment, focusing especially on mathematics and pedagogy, can contribute to that.

Femke Bakker, Hawks and Doves: Democratic Peace Theory Revisited
Is there a causal mechanism underlying the decision to attack another country when on the brink of war? If so, does this mechanism differ between regimetypes? Political scientist Femke Bakker (Leiden University) addresses this question from a political psychological and comparative perspective and…

Van Saarloos Group (Soft Matter Theory)
The focus of our theoretical research is understanding the behaviour of soft condensed matter, physical matter which is deformed or structurally altered by thermal fluctuations or small stresses.

Applied String Theory: Explaining Quantum Matter with Black Holes
Schalm

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

Development of highly accurate density functionals for H2 dissociation on transition metals
Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

Theory and practice of linguistic stylistics
The linguistic project constitutes the connection between the two other subprojects. It consists of two parts.

International Criminal Law: From Theory To Practice
Organized by the Grotius Centre for International Legal Studies, this programme enables students and professionals from all over the world to engage in discussions on the prospects and challenges of international criminal justice. The 19th edition of the International Criminal Law Summer School will…

The Importance of Conspiracy Theory in Extremist Ideology and Propaganda
On 16 april 2020, Andrew Fink defended his thesis 'The Importance of Conspiracy Theory in Extremist Ideology and Propaganda'. The doctoral research was supervised by Prof. A. Ellian.

Hydrogen dissociation on metal surfaces
Promotor: G. J. Kroes

Control theory methods for quantitative systems pharmacology models
Following their application to system biological models, control theory techniques have further potential to aid in the understanding and application of quantitative systems pharmacology models.

Novel approaches for direct exoplanet imaging: theory, simulations and experiments
The next generation of highcontrast imaging instruments on spacebased observatories requires sophisticated wavefront sensing and control in addition to a highperformance coronagraph.

The Roots of Intentionality in Aristotle´s Theory of Psychology
The relevance of intentionality to the interpretation of Aristotle was first suggested by Brentano in his Psychology from an Empirical Standpoint. Here we take our starting point from Brentano and investigate how Brentano’s concept of intentionality is rooted in Aristotle.

The Ethos of Digital Environments: Technology, Literary Theory and Philosophy
While selfdriving cars and autonomous weapon systems have received a great deal of attention in media and research, the general requirements of ethical life in today’s digitalizing reality have not been made sufficiently visible and evaluable.

Terrorism and Counterterrorism Studies: Comparing Theory and Practice
One of the defining issues of our age, terrorism frequently makes headlines as governments, private businesses, and ordinary citizens find themselves at risk or under attack. But what is the nature of this threat, and what can be done about it?