\documentclass[11pt]{article}

\usepackage{times,latexsym,amsmath,amssymb,amsfonts,bbm,pifont}

\input{makros}

\begin{document}

\pagestyle{empty}

\[
   \{\#w_y^* \mid y\in \SY\} = \argmin_{\{\#w_y\in\Re^n \mid y\in \SY\}} \Bigg [
   \frac{1}{2} \sum_{y\in \SY} \|\#w_y\|^2 + C \sum_{i=1}^m
   \max_{y\in \SY} \Big (\leftbb y \neq y_i\rightbb + \lz
   \#w_{y}-\#w_{y_i}, \#x_i\pz \Big ) \Bigg ]
\]

\[
  \{(\#x_1,y_1),\ldots,(\#x_m,y_m)\}\in (\Re^n\times \SY)^m
\]

\[
  \SY=\{1,\ldots,Y\}
\]

\[
  \{\#w_y^* \mid y\in \SY\}
\]

\[
  f(\#x) = \sgn\left( \lz \#w^*,\#x\pz \right )
\]

\[
 \lz \#w^*,\#x\pz
\]

$f(\#x) = \argmax_{y\in\SY} \lz \#w^*_y,\#x\pz$



\end{document}
