Charlotte Scott Centre for Algebra

On Wednesday the 31st of January 2018, Lukasz Grabowski will be visiting Lincoln and giving an algebra seminar on “Almost commuting matrices with respect to the rank metric”.

His abstract is as follows: “I will present my recent result with Gabor Elek, which deals with the variant of the “Halmos problem” for the rank metric. A particular case is as follows: if A and B are either unitary or self-adjoint matrices that almost commute with respect to the rank metric, then one can find commuting matrices C and D which are close in the rank metric to the matrices A and B respectively.”

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