142 zoekresultaten voor “finite rings” in de Publieke website
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Algorithms for finite rings
Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)
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On some classes of modules and their endomorphism rings
Promotores: Prof.dr. H Lenstra, Prof.dr. A Facchini (Padova University)
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Inverse problems for universal deformation rings of group representations
Promotor: Prof.dr. P. Stevenhagen
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Counting problems for number rings
Promotor: H.W. Lenstra
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Deterministic equation solving over finite fields
Promotor: H.W. Lenstra
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Jean RingFaculteit der Geesteswetenschappen
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Algorithms for finite rings
Promotie
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Intense automorphisms of finite groups
In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.
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E.H.H.M. RingsFaculteit Geneeskunde
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Strings and AdS/CFT at finite density
Promotores: J. Zaanen, A. Parnachev
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Modular forms of weight one over finite fields
Promotor: S.J. Edixhoven
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Competition on bird feeeders between introduced Ring-necked parakeets and native bird species in the Netherlands
Does the presence of Ring-necked parakeets negatively influence feeding and feeding behaviour of native bird species on artificial bird feeders and if so, what are possible solutions?
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Leidse astronomen over de ringen van Saturnus
Saturnus staat bekend om zijn ringen. Uit recente data van de ruimtesonde Cassini blijkt nu echter dat de planeet deze iconische ringen niet altijd heeft gehad. Leidse astronomen Yamila Miguel en Matthey Kenworthy reageren in verschillende media op de ontdekking.
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Class invariants for tame Galois algebras
Promotores: B. Erez, P. Stevenhagen, Co-Promotor: B. de Smit
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Astronomen vermoeden planeet met gigantische ringen rond waarneembare ster
Astronomen van onder meer de Sterrewacht Leiden hebben een ongebruikelijke begeleider ontdekt van een zeer jonge ster in het sterrenbeeld Orion. Dat grote object, mogelijk een planeet, schuift iedere 2,5 jaar voor de ster langs, waardoor het sterlicht met 20 procent wordt gedimd. Binnenkort verschijnt…
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Jonge sterrenstelsels hebben ook al spiraalarmen, balken en ringen
Jonge sterrenstelsels zijn minder rommelig dan verwacht en blijken ook al spiraalarmen, balken en ringen te bevatten. Dat stelt een internationaal team van onderzoekers onder leiding van assistant professor Jacqueline Hodge. De jonge, ver van ons vandaan staande sterrenstelsels waren tot nu toe wazige…
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Eerste licht voor camera die exo-ringen gaat spotten
Sterrenkundigen uit onder andere Leiden hebben in Zuid-Afrika de eerste astronomische opnamen gemaakt met de door hen gebouwde bRing-camera. Deze camera zal een jaar lang gericht staan op de planeet die rond de ster Beta Pictoris draait, om te kijken of deze planeet een ringenstelsel heeft.
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Cavity quantum electrodynamics with rare-earth ions in solids
Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood
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Links between cohomology and arithmetic
Promotor: S.J. Edixhoven
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Discrete tomography for integer-valued functions
Promotor: S.J. Edixhoven, Co-promotor: K.J. Batenburg
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Modular curves, Arakelov theory, algorithmic applications
Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong
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Group representations in Banach spaces and Banach lattices
Promotor: S.M. Verduyn Lunel, Co-promotores: M.F.E. de Jeu, B. de Pagter
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Groups and fields in arithmetic
Promotor: Prof.dr. H.W. Lenstra
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Intense automorphisms of finite groups
Promotie
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Metastability for low-temperature Kawasaki dynamics with two types of particles
Promotor: W.Th.F. den Hollander, Co-promotor: F.R. Nardi
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Shtuka cohomology and special values of Goss L-functions
Assuming everywhere good reduction we generalize the class number formula of Taelman to Drinfeld modules over arbitrary coefficient rings.
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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.
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Complex multiplication of abelian surfaces
Promotor: Peter Stevenhagen
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Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel
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Induced substitutions
Promotor: R. Tijdeman, Co-promotor: C. Kraaikamp
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Strategies for Mechanical Metamaterial Design
On a structural level, the properties featured by a majority of mechanical metamaterials can be ascribed to the finite number of soft internal degrees-of freedom allowing for low-energy deformations.
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Water related adsorbates on stepped platinum surfaces
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Enumeration and Simulation of Lattice Polymers as Models for Compact Biological Macromolecules
Promotores: H. Schiessel, G.T. Barkema
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Computability of the étale Euler-Poincaré characteristic
Promotor: S.J. Edixhoven, L.D.J. Taelman
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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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On p-adic decomposable form inequalities
Promotor: Prof.dr. P. Stevenhagen, Jan-Hendrik Evertse, Co-promotor: Pascal Autissier
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Images of Galois representations
Promotores: S.J. Edixhoven, P.Parent
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Breaking of ensemble equivalence for complex networks
For many system in statistical physics the microcanonical and canonical ensemble are equivalent in the thermodynamic limit, but not for all.
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Quantum local asymptotic normality and other questions of quantum statistics
Promotor: R. Gill, Co-promotor: P. Massart
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Semigroups on Spaces of Measures
Promotor: S.M. Verduyn Lunel, Co-promotor: S.C. Hille
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On transport properties of Majorana fermions in superconductors: free & interacting
Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.
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Disorder and interactions in high-temperature superconductors
This thesis is devoted to an in-depth examination of the various effects of disorder in the cuprate high-temperature superconductors.
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Blowup in the complex Ginzburg-Landau equation
Promotor: Prof.dr. A. Doelman, Co-promotor: V. Rottschäfer
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Knots in plasma
A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.
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Deciphering fermionic matter: from holography to field theory
Promotor: K.E. Schalm, Co-promotor: S.S. Lee
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Topics in the arithmetic of del Pezzo and K3 surfaces
Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk
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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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Matching, entropy, holes and expansions
In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.
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Mechanical metamaterials: nonlinear beams and excess zero modes
Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.
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Profinite groups with a rational probabilistic zeta function
Promotores: H.W. Lenstra, A. Lucchini