Objective "Geometry, arithmetic, and quantum physics historically have had many points of intersection. This project will use recent techniques in algebraic group actions, especially those of Kirwan, to address problems of overlapping interest to distinct research groups at the University of Oxford – Algebraic Geometry, Number Theory, Mathematical Physics, and the Centre for Quantum Mathematics and Computation. Consider the following long-standing, a priori unrelated, questions. What is the minimal degree curve that passes through n points in general position in the plane (Nagata conjecture)? What is the growth rate of the number of integer lattice points in a variety (for us, universal torsor over a Fano variety) with respect to a height function (Manin conjecture)? How can one work with quantum entanglements of different qualitative character and associated entropies in a rigorous yetexperimentally friendly way? These open questions turn out to admit a common source, at least in a large class of problems of interest. The crucialingredient is a suitable ""homotopic replacement for a universal torsor"" -- arising, in nice cases, from a key difference with topology, since in algebraic geometry algebraic affine line bundles needn't be vector bundles -- that often allows one to reduce to studying a simpler problem in group actions attached to an affine space rather than to a complicated variety or even more complicated universal torsor." Fields of science natural sciencesphysical sciencesquantum physicsnatural sciencesmathematicsapplied mathematicsmathematical physicsnatural sciencesmathematicspure mathematicsarithmeticsnatural sciencesmathematicspure mathematicsgeometrynatural sciencesmathematicspure mathematicsalgebraalgebraic geometry Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2016 - Individual Fellowships Call for proposal H2020-MSCA-IF-2016 See other projects for this call Funding Scheme MSCA-IF-EF-ST - Standard EF Coordinator THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD Net EU contribution € 195 454,80 Address WELLINGTON SQUARE UNIVERSITY OFFICES OX1 2JD Oxford United Kingdom See on map Region South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 195 454,80
