Jane Lyle presented a poster at the STEM for Britain 2018 event held at the Houses of Parliament in Westminster on Monday 12 March. The event gave an exciting flavour of the work of early career researchers in Mathematics, Physics, Biology and Chemistry, covering topics from black holes to fertility to the recycling of household waste. Jane’s poster on ‘Interpreting Cardiovascular Data with Mathematics’ was well received. She was visited by three of the judges during the session who gave positive feedback on both the approach to the analysis of electrocardiogram (ECG) time series and the future applications of this work. The project forms part of Jane‘s PhD thesis supervised by Philip Aston. A full size .pdf version of her poster can be downloaded here.
Jane Lyle has been invited to present a poster today at the STEM for Britain 2018 presentation in the Attlee Suite, Portcullis House, in the House of Commons. It is a poster session at Westminster for early-career researchers in science, engineering and mathematics. Jane will be presenting a poster in the mathematics session on time series analysis of medical data, which forms part of her PhD project. Her project is supervised by Philip Aston. A link to the STEM website is here.
Two papers on modulation by Tom Bridges and Dan Ratliff (Loughborough) have been accepted for publication. The papers address a problem which has been unsolved for over 50 years: what happens to a nonlinear wave when the Whitham modulation equations, evaluated on the wave, break down? A new nonlinear and universal theory is developed in these papers. The first and main paper “On the elliptic-hyperbolic transition in Whitham modulation theory” has appeared in the SIAM J Applied Maths (link here) and the second, which generalises the theory to multi-space dimension, “Nonlinear modulation near the Lighthill instability threshold in 2+1 Whitham theory” has appeared in the Philosophical Transactions of the Royal Society (link here).
Martin Wolf and his PhD student Lorenzo Raspollini are at the University of Leeds this week to attend the Workshop on Higher Gauge Theory:” where should we look for higher gauge matter? (From emerging physics and topological quantum computing to string and M-theory). Martin is also giving a talk entitled “Twistor Geometry and Higher Gauge Theory” during which he will explain how higher groupoid bundles and twistor geometry can be combined to formulate higher gauge theory. In particular, he will discuss the construction of superconformal self-dual tensor field theories in six dimensions and superconformal Yang-Mills theory in four dimensions in terms of holomorphic higher Chern-Simons theory on supertwistor space.
Andrea Fontanella is visiting the String Theory Group at the Mathematical Institute, Oxford University, this week, and on Monday 26 February he is giving a talk in the String Theory Seminar on “Heterotic near horizon geometries“. An abstract of the talk can be found here. The talk is based on the papers arXiv:1605.05635 and arXiv:1610.09949. Andrea is a final year PhD student working with Jan Gutowski.
Carina Dunlop visited the Department of Mathematics at the University of Portsmouth yesterday (Wednesday 21 February) to give a talk in their Mathematics Seminar Series. The title of her talk was “Mechanical models for cell and tissue mechanotransduction“. The abstract follows similar lines to her recent talks at Oxford (link here) and Southampton (link here).
Jan Gutowski is visiting the Department of Mathematics at King’s College London today (Wednesday 14 February), and giving a talk in the Triangle Seminar Series on “Highly supersymmetric AdS solutions“. Anti-de-Sitter solutions play an important role in the gauge-theory/gravity correspondence, and understanding their properties has provided important insights into the dual field theories. In the talk, Jan considers ADS solutions which are highly supersymmetric, in the sense that they preserve more than 16 supersymmetries, and he shows how modified versions of the homogeneity theorems of Figueroa-O’Farrill, combined with aspects of the global properties of the geometries, can be used to classify these solutions.
The paper “q-Poincare invariance of the AdS-3/CFT-2 R-matrix” co-authored by Riccardo Borsato (Nordita-Sweden), Surrey PhD student Joakim Strömwall and Alessandro Torrielli has been accepted for publication in Physical Review E. The final form preprint is available for downloading here.
The paper “Fluid sloshing in rectangular vessels with side-wall baffles using conformal mappings of multiply-connected domains” by Matt Turner has been accepted for publication in the Quarterly Journal of Mechanics and Applied Mathematics. Final form preprint available here. The paper cleverly utilizes conformal mappings of a multiply connected domain to formulate a numerical procedure which has the ability to simulate an inviscid sloshing fluid in a rectangular vessel, with submerged side-wall baffles. The conformal mappings used are based upon the highly versatile Schottky-Klein prime function which allows the mapping to be easily modified from a doubly-, to a triply-, to an N-fold-connected domain. Results for the form of the conformal mapping are presented for 1 and 2 submerged baffles in both infinite and finite depth fluids.
Carina Dunlop visited the Mathematical Institute at Oxford University on Friday 2nd February to give a talk in the Mathematical Biology and Ecology Seminar Series. The title of her talk was “Mechanical models for cell and tissue mechanotransduction“. The ability of cells to sense and respond to the mechanical properties of their environments is fundamental to cellular behaviour, with stiffness found to be a key control parameter. The physical mechanisms underpinning mechanosensing are, however, not well understood. In this talk, Carina considered the key physical cellular behaviours of active contractility of the internal cytoskeleton and cell growth, coupling these into mechanical models. These models suggest new distinct mechanisms of mechanotransduction in cells and tissues.
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