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Quantized Skyrmions from SU(4) weight diagrams
(Physical Review C, 2018-03-06)
© 2018 authors. Published by the American Physical Society. Starting from solutions of the lightly bound Skyrme model, we construct many new Skyrmion solutions of the standard Skyrme model with tetrahedral or octahedral ...
Relativistic magnetised perturbations: Magnetic pressure versus magnetic tension
(IoPClassical and Quantum Gravity, 2018-05-16)
We study the linear evolution of magnetised cosmological perturbations in the post-recombination epoch. Using full general relativity and adopting the ideal magnetohydrodynamic approximation, we refine and extend the ...
Interpreting the CMS ℓ+ ℓ-jj+ missing transverse energy excess with a leptoquark model
(Physical Review D - Particles, Fields, Gravitation and Cosmology, 2015-09-17)
Statistical issues in Mendelian randomization: use of genetic instrumental variables for assessing causal associations
(University of CambridgeDepartment of Pure Mathematics and Mathematical StatisticsMRC Biostatistics Unit, 2012-03-06)
Mendelian randomization is an epidemiological method for using genetic variation
to estimate the causal effect of the change in a modifiable phenotype on
an outcome from observational data. A genetic variant satisfying ...
Unipotent elements in algebraic groups
(University of CambridgeDepartment of Pure Mathematics and Mathematical Statistics, 2012-01-10)
This thesis is concerned with three distinct, but closely related, research topics focusing on the unipotent elements of a connected reductive algebraic group G, over an algebraically closed field k, and
nilpotent elements ...
Problems of optimal choice on posets and generalizations of acyclic colourings
(University of CambridgeDepartment of Pure Mathematics and Mathematical Statistics, 2011-06)
NOTE : The mathematical symbols in the abstract do not always display correctly in this text field. Please see the abstract in the thesis for the definitive abstract. ABSTRACT: This dissertation is in two parts, each ...
Collaborating queues: large service network and a limit order book
(University of CambridgeDepartment of Pure Mathematics and Mathematical StatisticsEmmanuel CollegeStatistics Laboratory, 2012-10-09)
We analyse the steady-state behaviour of two different models with collaborating queues: that is, models in which "customers" can be served by many types of "servers", and "servers" can process many types of "customers".
The ...
Comparison of multimarker logistic regression models, with application to a genomewide scan of schizophrenia.
(2010-09-09)
Abstract Background Genome-wide association studies (GWAS) are a widely used study design for detecting genetic causes of complex diseases. Current studies provide good coverage of common causal SNPs, but not rare ones. A ...
Hyper and structural Markov laws for graphical models
(University of CambridgeDepartment of Pure Mathematics and Mathematical Statistics, 2012-03-06)
My thesis focuses on the parameterisation and estimation of graphical models, based on the concept of hyper and meta Markov properties. These state that the parameters should exhibit conditional independencies, similar to ...
Linear waves on higher dimensional Schwarzschild black holes and Schwarzschild de Sitter spacetimes
(University of CambridgeDepartment of Pure Mathematics and Mathematical Statistics, 2012-07-03)
I study linear waves on higher dimensional Schwarzschild black holes and Schwarzschild
de Sitter spacetimes.
In the first part of this thesis two decay results are proven for general finite energy solutions to the linear ...