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Isao SAUZEDDE

Research fellow, university of Warwick
email: firstname.lastname@warwick.ac.uk


I am mostly working on stochastic analysis and its application to mathematical physics and geometry, although I have broad interests in mathematics.

My research is primarily focused on the winding function associated with a planar Brownian motion, which can be seen as a log-correlated field. My initial motivation to study this function comes from its relations to the Yang-Mills-Higgs field, and my main goal in this direction is a direct construction in the continuum of the measure associated with the Yang-Mills-Higgs field (in two dimensions, both in the abelian and non-abelian settings).

Main interests :
- Planar Brownian motion, Brownian windings, stochastic Green' formula, Amperean area, Brownian motion interacting with random magnetic impurities, occupation and intersection measures.
- EQFT, Yang-Mills-Higgs field, Gaussian free field and log-correlated fields in general, Phi(4).
- Brownian loop soup, multiplicative chaoses and LQG, loop-erased random walks and SLE.
- Stochastic approaches to index theory, analytic torsion, measures on moduli spaces, determinant of Laplacians and Dirac operators.
- Rough path theory and Young integration (in particular, Stokes' theorems and other identities of geometric nature in these framework).
- Occasionally I also worked on problems in random matrix theory, reflected processes, stable processes.


I am currently a post-doc at the university of Warwick, supervised by Aleksandar Mijatović.
I was previously in post-doc supervised by Jon Keating, after I finished my PhD in Paris (LPSM) supervised by Thierry Lévy.
I am currently visiting Nathanaël Berestycki at the university of Vienna as a junior research fellow of the Erwin Shrödinger institute.
From time to time you can also find me at the university of Luxembourg, visiting Pierre Perruchaud.

Here is a self-contained short presentation of my work (dated from May 2021).