Tue, April 16, 2019
Public Access

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April 2019
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10:00am [10:30am] Kirill Cherednichenko, University of Bath
Lecture Series on Partial Differential Equations. Speaker: Kirill Cherednichenko. Affiliation: University of Bath. Title: Periodic PDEs with micro-resonators: unified approach to homogenisation and time-dispersive media. Venue: Ramanujan Hall, Department of Mathematics. Date and Time: Tuesday 16 April, 10.30 am - 12.30 pm Lecture I: An overview of the mathematical theory of homogenisation as a toolbox for the analysis of multiscale problems. Wave propagation: resonant and nonresonant regimes. Non-resolvent estimates, time dispersion, and metamaterials: amotivation for a novel homogenisation principle.

4:00pm [4:00pm] Saurav Bhaumik
Geometry and Topology Seminar. Title : Grothendieck's theorem on algebraic de Rham cohomology of varieties Speaker: Saurav Bhaumik Time & Date: 4-5pm, Tuesday 16th April. Venue: Ramanujan Hall. Abstract: Let X be a smooth scheme of finite type over C, and let X' be the corresponding complex analytic variety. Grothendieck proved that the complex cohomologies H^q(X') can be calculated as the hypercohomologyes of the algebraic de Rham complex on X. We will present Grothendieck's proof.

5:00pm [5:10pm] Atharva Korde
Popular Talk in Mathematics. Speaker: Atharva Korde. Date and Time: Tuesday, 16 April. 5.10 pm - 6.00 pm. Refreshments will be served before the talk. Venue: Ramanujan Hall, Department of Mathematics. Title: Secret avatars of two spaces. Abstract: The spaces SL(2, R) and SL(2,R)/SL(2, Z) look quite difficult to visualize at first glance. In this talk, we shall see that these two spaces are actually homeomorphic to some nice-looking spaces.