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University of Cambridge > Talks.cam > Probability > On the number of level sets of smooth Gaussian fields

## On the number of level sets of smooth Gaussian fieldsAdd to your list(s) Download to your calendar using vCal - Dmitry Belyaev (Oxford)
- Tuesday 29 November 2022, 14:00-15:00
- MR12, Centre for Mathematical Sciences.
If you have a question about this talk, please contact Perla Sousi. The number of zeroes or, more generally, level crossings of a Gaussian process is a classical subject that goes back to the works of Kac and Rice who studied zeroes of random polynomials. The number of zeroes or level crossings has two natural generalizations in higher dimensions. One can either look at the size of the level set or the number of connected components. The surface area of a level set could be computed in a similar way using Kac-Rice formulas. On the other hand, the number of the connected components is a `non-local’ quantity which is notoriously hard to work with. The law of large numbers has been established by Nazarov and Sodin about ten years ago. In this talk, we will briefly discuss their work and then discuss the recent progress in estimating the variance and deriving the central limit theorem. The talk is based on joint work with M. McAuley and S. Muirhead. This talk is part of the Probability series. ## This talk is included in these lists:- All CMS events
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