Department of Mathematics and Computer Science Number Theory and Combinatorics Seminar Spring 2017 Talks are at noon on Monday in room B660 of University Hall For more information, or to receive an email announcement of each week's seminar, contact Nathan Ng < ng AT cs DOT uleth DOT ca > or Dave Morris .
 The next talk: Jan 23 at noon in B660 Alia Hamieh Non-Vanishing of Central Values of Rankin-Selberg $L$-Functions In this talk, we discuss some results on the non-vanishing of the central values of Rankin-Selberg convolutions of families of Hilbert modular forms. Such results are obtained by establishing some asymptotics of certain twisted first and second moments. This is an on-going joint work with Naomi Tanabe.
 Talks in the series this semester: (Click on any title for more info, including the abstract. Then click on it again to hide the info.)

 Date Speaker Title Jan 9 Darcy Best Transversals in Latin Arrays with many Symbols at noon in B660 (Monash University, Australia) A transversal of a latin square of order $n$ is a set of $n$ entries picked in such a way that no row, column or symbol is present more than once. As you add more symbols to a latin square, you expect the number of transversals to increase. We show that once the number of symbols reaches a certain threshold, the square is guaranteed to have a transversal. Jan 16 everyone Open problem session at noon in B660 Please bring your favourite (math) problems. Anyone with a problem to share will be given about 5 minutes to present it. We will also choose most of the speakers for the rest of the semester. Jan 23 Alia Hamieh Non-Vanishing of Central Values of Rankin-Selberg $L$-Functions at noon in B660 (University of Lethbridge) In this talk, we discuss some results on the non-vanishing of the central values of Rankin-Selberg convolutions of families of Hilbert modular forms. Such results are obtained by establishing some asymptotics of certain twisted first and second moments. This is an on-going joint work with Naomi Tanabe. Jan 30 Nathan Ng Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Feb 6 Joy Morris Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Feb 13 Habiba Kadira Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Feb 27 Hadi Kharaghani Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Mar 6 Pieter Moree Title TBA at noon in B660 (Max Planck Institute, Germany) Abstract TBA Mar 13 Pieter Moree Title TBA at noon in B660 (Max Planck Institute, Germany) Abstract TBA Mar 20 Speaker TBA Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Mar 27 Speaker TBA Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Apr 3 Sahar Siavashi Title TBA at noon in B660 (University of Lethbridge) Abstract TBA Apr 10 Speaker TBA Title TBA at noon in B660 (University of Lethbridge) Abstract TBA
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