Analysis Seminar in Crete (2017-18)

Σεμιναριο Αναλυσης

In chronological ordering

DATE TIME ROOM SPEAKER FROM TITLE COMMENT
Wed, 11 Oct 2017 10:15 A303George CostakisUniversity of Crete Common hypercyclic vectors for multiples of operators along sparse orbits
Wed, 18 Oct 2017 10:15 AM A303Kostas PanterisUniversity of Crete Closed range composition operators on Bergman and Besov spaces
Wed, 25 Oct 2017 11:15 A303Kostas PanterisUniversity of Crete Closed range composition operators on Hardy spaces.
Wed, 8 Nov 2017 10:15 A303Ioannis ParissisUniversity of the Basque Country The Hilbert transform along finite order lacunary sets of directions
Abstract: Abstract is here.
Wed, 29 Nov 2017 10:15 A303Konstantinos Tzirakis University of Crete Sharp Hardy-Sobolev estimates for fractional Hardy-Schrödinger operators
Abstract: Abstract is here.
Wed, 14 Feb 2018 10:15 A303Nikos FrantzikinakisUniversity of Crete The Sarnak conjecture for ergodic weights
Abstract: The Mobius function is a multiplicative function which encodes important information related to distributional properties of the prime numbers. It is widely believed that its non-zero values fluctuate between plus and minus one in a random way. One conjecture in this direction, formulated by Sarnak, states that the Mobius function does not correlate with any bounded deterministic sequence. We are going to prove this conjecture for all ergodic deterministic sequences. A key advantage in our approach is that it makes a connection with some deep results in ergodic theory which we use in order to study structural properties of measure preserving systems naturally associated with the Mobius function. This is joint work with Bernard Host.
Wed, 7 Mar 2018 10:15 A303George CostakisUniversity of Crete How to recognize power-regular operators?
Wed, 14 Mar 2018 10:15 A303Mihalis KolountzakisUniversity of Crete Translational tiling and computation
Abstract: We will discuss about computational aspects of the question "Does this set tile space by translation?".
Wed, 25 Apr 2018 10:15 A303George MavrogiannisUniversity of Crete An infinite family of Ramanujan graphs
Abstract: We present the construction, by Marcus, Spielman and Srivastava, of an inifinite family of $d$-regular, bipartite graphs all of whose non-trivial eigenvalues (apart from $\pm d$, that is) are bounded by $2\sqrt{d-1}$ in absolute value.

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