62 zoekresultaten voor “elliptic curves” in de Publieke website
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Constructing elliptic curves of prescribed order
Promotor: Peter Stevenhagen
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Galois representations of elliptic curves and abelian entanglements
Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Universite Bordeaux I)
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Universal adelic groups for imaginary quadratic number fields and elliptic curves
Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)
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Torsion points on elliptic curves over number fields of small degree
Promotor: S.J. Edixhoven Co-promotor: L. van Geemen, P. Parent
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Split Jacobians and Lower Bounds on Heights
This thesis deals with properties of Jacobians of genus two curves that cover elliptic curves.
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Models of curves: The Birch and Swinnerton-Dyer conjecture & ordinary reduction
Chapter 1,contains the numerical verification of the Birch and Swinnerton-Dyer conjecture for hundreds of Jacobians of hyperelliptic curves of genus 2, 3, 4 and 5.
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Modular curves, Arakelov theory, algorithmic applications
Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong
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Images of Galois representations
Promotores: S.J. Edixhoven, P.Parent
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Arakelov invariants of Belyi curves
Promotores: Bas Edixhoven, Jean-Benoit Bost, Co-promotor: Robin de Jong
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Inverse Jacobian and related topics for certain superelliptic curves
To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.
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The CM class number one problem for curves
Promotores: P. Stevenhagen, A. Enge Co-Promotor: T.C. Streng
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Deterministic equation solving over finite fields
Promotor: H.W. Lenstra
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Division points in arithmetic
This thesis consists of three chapters, the first two of which concern division points of elements of the multiplicative group of a number field.
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Galois representations of elliptic curves and abelian entanglements
Promotie
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Refined tautological relations on moduli spaces of curves
The key purpose of this project is to study tautological relations on the level of closed differential forms or even integral cochains (i.e. we don't take classes in cohomology).
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Geometry and arithmetic of del Pezzo surfaces of degree 1
This thesis contains results on the arithmetic and geometry of del Pezzo surfaces of degree 1.In Chapter 1 we give the necessary background, assuming the reader is familiar with algebraic geometry.
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Néron models in high dimension: nodal curves, Jacobians and tame base change
We describe certain birational modifications of nodal relative curves over a regular base of arbitrary dimension.
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Arakelov inequalities and semistable families of curves uniformized by the unit ball
The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.
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Torsion points on elliptic curves over number fields of small degree
Promotie
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Lasers, lenses and light curves: adaptive optics microscopy and peculiar transiting exoplanets
Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen
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Groups and fields in arithmetic
Promotor: Prof.dr. H.W. Lenstra
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Dual Complexes of Semistable Varieties
This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.
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Some case studies of random walks in dynamic random environments
Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.
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Computability of the étale Euler-Poincaré characteristic
Promotor: S.J. Edixhoven, L.D.J. Taelman
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Isogeny graphs, modular polynomials, and applications
This thesis has three main parts. The first part gives an algorithm to compute Hilbert modular polynomials for ordinary abelian varieties with maximal real multiplication. Hilbert modular polynomials of a given level b give a way of finding all of the abelian varieties that are b-isogeneous to any given…
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Inverse Jacobian and related topics for certain superelliptic curves
Promotie
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Inferno Worlds
A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.
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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher
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Predicting the future: Predictive control for astronomical adaptive optics
The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.
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Complex multiplication of abelian surfaces
Promotor: Peter Stevenhagen
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The class number one problem for CM curves
Promotie
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The mixed Ax-Lindemann theorem and its applications to the Zilber-Pink conjecture
Promotores: Prof.dr. S.J. Edixhoven, Prof.dr. E. Ullmo (University Paris-Sud)
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Marjolein Fokkema: 'Algoritmen maken steeds flexibelere beslisbomen voor behandelaars'
Voorspellingen doen over emotionele problemen of de effecten van lichtvervuiling: algoritmen van Marjolein Fokkema kunnen het steeds beter. Ze maakt haar algoritmen steeds flexibeler, zodat ze niet alleen kenmerken op één moment kunnen voorspellen, maar ook hoe bijvoorbeeld vaardigheden toe- of afne…
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Links between cohomology and arithmetic
Promotor: S.J. Edixhoven
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Models of curves: The Birch and Swinnerton-Dyer conjecture & ordinary reduction
Promotie
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Néron models in high dimension: nodal curves, Jacobians and tame base change
Promotie
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Arakelov inequalities and semistable families of curves uniformized by the unit ball
Promotie
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A monodromy criterion for existence of Neron models and a result on semi-factoriality
In the first part, we introduce a new condition, called toric-additivity, on a family of abelian varieties degenerating to a semi-abelian scheme over a normal crossing divisor.
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Optical properties of DNA-hosted silver clusters
Promotor: D. Bouwmeester, Co-promotor: D. Kraft
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Arithmetic of affine del Pezzo surfaces
In this thesis integral points on affine del Pezzo surfaces are studied.
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Atmospheres of hot alien Worlds
Promotor: Prof.dr. I.A.G. Snellen, C.U. Keller
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The holographic glass bead game: from superconductivity to time machines
Promotores: Prof.dr. J. Zaanen, Prof.dr. K.E. Schalm
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Structural Properties of Single Server Queueing Systems: Efficient Methods via Lumping and Dynamic Programming
This thesis consists of two main parts. The first part (Chapters 2 and 3) deals with a class of Markov process called Quasi-Skipfree (QSF) processes.
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Science & Cinema
In films kunnen de meest wonderlijke acties plaatsvinden. Maar zijn die acties in de 'echte' wereld ook mogelijk? En in hoeverre houden filmmakers ons voor de gek? Tijdens het Leiden International Film Festival komen film en wetenschap samen.
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Metals in LCIA
A critical look at the impact assessment modelling of metals in Life Cycle Impact Assessment and improvement options.
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Towards artificial photosynthesis: resolving supramolecular packing of artificial antennae chromophores through a hybrid approach
Promotor: H.J.M. de Groot
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TOP-subsidie NWO voor Prof. Dr. Aad van der Vaart en Dr. Robin de Jong
NWO Exacte Wetenschappen kent aan 16 wetenschappers in de astronomie, informatica en wiskunde of een combinatie van deze disciplines (multidisciplinair) een TOP-subsidie toe. In totaal ontvangen de wetenschappers 6 miljoen euro.
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Vier NWO-Top subsidies voor Leidse exacte wetenschappen
Maar liefst vier Leidse wetenschappers in de astronomie en wiskunde hebben een TOP-subsidie toegekend gekregen van NWO. Het gaat om prof.dr. Koen Kuijken, dr. Robin de Jong, dr. Ivo Labbé en dr. Elena Rossi. In totaal ontvangen de wetenschappers 6 miljoen euro. NWO verdeelde in totaal 6 miljoen euro…
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Effects of glufosinate-ammonium on off crop vegetation
Description of Effects of glufosinate-ammonium on off crop vegetation.
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This Week's Discoveries |4 April 2017
Lezing