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\begin{document}
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\begin{center}
  \vspace*{\baselineskip}

  {\Large BGU Math}

  \vspace*{\baselineskip}

  \rule{\textwidth}{1.6pt}\vspace*{-\baselineskip}\vspace*{2pt}
  \rule{\textwidth}{0.4pt}\\[\baselineskip]

  {\Huge Combinatorics Seminar}\\[0.5\baselineskip]
  {\Large 2018--19--A meetings}


  \rule{\textwidth}{0.4pt}\vspace*{-\baselineskip}\vspace{3.2pt}
  \rule{\textwidth}{1.6pt}\\[\baselineskip]


\end{center}


  {\renewcommand{\arraystretch}{1.2}
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  \begin{longtabu}{|X[-1,l]|X[-2,c]|X[-3,l]|}
  \hline
  \textbf{Date} & \textbf{Speaker} &
  \textbf{Title}\\
  \hline
  \textrm{Nov 13}%
, \emph{16:10--17:10}, In \textbf{201}%
  &
  Roman Glebov
    (BGU)%
  &
  Finitely Forcible Graphons\\

  \hline


\textrm{Nov 20}%
, \emph{16:00--17:00}, In \textbf{201}%
  &
  Noam Lifshitz
    (Bar Ilan)%
  &
  Sparse sharp thresholds and hypercontractivity\\

  \hline


\textrm{Nov 27}%
, \emph{15:45--16:45}, In \textbf{201}%
  &
  Lena Yuditsky
    (BGU)%
  &
  Almost all string graphs are intersection graphs of plane convex sets\\

  \hline


\textrm{Dec  4}%
, \emph{15:30--17:00}, In \textbf{201}%
  &
  Arnold Filtser
    (BGU)%
  &
  Steiner Point Removal with distortion O(log k), using the Relaxed Voronoi algorithm\\

  \hline


\textrm{Dec 11}%
, \emph{15:45--16:45}, In \textbf{201}%
  &
  Yaar Solomon
    (BGU)%
  &
  Dense forests and low visibility\\

  \hline


\textrm{Dec 18}%
%
  &
  Ilan Karpas  &
  Frankl's conjecture for dense families.\\

  \hline


\textrm{Dec 25}%
%
  &
  Bruno Jartoux
    (BGU)%
  &
  Piercing Edges with Subsets in Geometric Hypergraphs\\

  \hline


\textrm{Jan  1}%
%
  &
  Chaya Keller
    (Technion)%
  &
  Improved lower and upper bounds on the Hadwiger-Debrunner numbers\\

  \hline


\textrm{Jan  8}%
%
  &
    \multicolumn{2}{|c|}{In extremal graph theory, we often consider large graphs that are in the limit uniquely determined by finitely many densities of their subgraphs. The corresponding limits (so-called graphons) are called finitely forcible. Motivated by classical results in extremal combinatorics as well as by recent developments in the study of finitely forcible graphons, Lovasz and Szegedy made some conjectures about the structure of such graphons. In particular, they conjectured that the topological space of typical points of every finitely forcible graphon is compact and finitely dimensional. In joint results with D. Kral, T. Klimosova, and J. Volec, we could disprove both conjectures.}\\

  \hline



\end{longtabu}}

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\vfill
Meetings are on \textsc{Tuesdays}, \emph{10:45-11:45}, in \textbf{-101} (unless otherwise mentioned)


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\end{document}

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