Nikhil Srivastava is joint winner of maths prize

Indian mathematician Nikhil Srivastava has been named winner of the prestigious 2021 Michael and Sheila Held Prize along with two others for solving long-standing questions on the Kadison–Singer problem and on Ramanujan graphs.
Srivastava from the University of California, Berkeley, Adam Marcus, from the Ecole Polytechnique Federale de Lausanne (EPFL) and Daniel Alan Spielman from Yale University will receive the 2021 Michael and Sheila Held Prize, the National Academy of Sciences of the U.S. said in the statement.
The prize consists of a medal and $100,000. Srivastava, Marcus and Spielman solved long-standing questions on the Kadison–Singer problem and on Ramanujan graphs, and in the process uncovered a deep new connection between linear algebra, the geometry of polynomials and graph theory it said.
The decades-old Kadison–Singer problem asks whether unique information can be gleaned from a system in which only some features can be observed or measured, according to the Yale news.

Source: TH

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