\documentclass[11pt,notitlepage]{article}
\usepackage{amsmath, graphicx, amssymb, stmaryrd, datetime, amscd, multicol, txfonts}
\usepackage[usenames,dvipsnames]{xcolor}
% Following http://tex.stackexchange.com/a/847/22475:
\usepackage[setpagesize=false]{hyperref}\hypersetup{colorlinks,
%\usepackage{hyperref}\hypersetup{colorlinks,
  linkcolor={blue!50!black},
  citecolor={blue!50!black},
  urlcolor=blue
}
\usepackage[greek,english]{babel}
% Cyrillic letters following http://tex.stackexchange.com/questions/14633/what-packages-will-let-me-use-cyrillic-characters-in-math-mode:
%\usepackage[T2A,T1]{fontenc}
%\newcommand{\Zhe}{{\mbox{\usefont{T2A}{\rmdefault}{m}{n}\CYRZH}}}
\usepackage[T2A,T1]{fontenc}
\makeatletter
\def\easycyrsymbol#1{\mathord{\mathchoice
  {\mbox{\fontsize\tf@size\z@\usefont{T2A}{\rmdefault}{m}{n}#1}}
  {\mbox{\fontsize\tf@size\z@\usefont{T2A}{\rmdefault}{m}{n}#1}}
  {\mbox{\fontsize\sf@size\z@\usefont{T2A}{\rmdefault}{m}{n}#1}}
  {\mbox{\fontsize\ssf@size\z@\usefont{T2A}{\rmdefault}{m}{n}#1}}
}}
\makeatother
\newcommand{\Zhe}{{\easycyrsymbol{\CYRZH}}}
\newcommand{\zhe}{{\easycyrsymbol{\cyrzh}}}

\def\sheeturl{{\url{http://drorbn.net/AcademicPensieve/2015-11/xtx/}}}
\def\myurl{http://www.math.toronto.edu/~drorbn}
\def\arXiv#1{{\href{http://front.math.ucdavis.edu/#1}{arXiv:\linebreak[0]#1}}}

\paperwidth 8in
\paperheight 10.5in
\textwidth 8in
\textheight 10.5in
\oddsidemargin -0.75in
\evensidemargin \oddsidemargin
\topmargin -0.75in
\headheight 0in
\headsep 0in
\footskip 0in
\parindent 0in
\setlength{\topsep}{0pt}
\pagestyle{empty}
\dmyydate

\begin{document}
%\setlength{\jot}{0ex}
\setlength{\abovedisplayskip}{0.5ex}
\setlength{\belowdisplayskip}{0.5ex}
\setlength{\abovedisplayshortskip}{0ex}
\setlength{\belowdisplayshortskip}{0ex}

\parbox[b]{4in}{
  \footnotesize\url{\myurl/Talks/MoscowByWeb-1511/}
  \newline\bf
  \href{\myurl/}{Dror Bar-Natan}:
  \href{\myurl/Talks/}{Talks}:
  \href{\myurl/Talks/MoscowByWeb-1511/}{MoscowByWeb-1511}:
}
\hfill\parbox[b]{3.4in}{
  \null\hfill{\Huge\bf Crossing the Crossings}
}

\vskip -3mm
\rule{\textwidth}{1pt}
\vspace{-8mm}

\begin{multicols*}{2}

Didha $\Zhe$

\end{multicols*}

\end{document}

\endinput