How to write nice equations in LaTeX beamer

The equations in the default beamer presentation slides are rather unattractive.
In my opinion this is merely because of the fonts used for equations.

You can change it by changing the font-theme for equations.

 \usefonttheme[onlymath]{serif}

 This will result equations like in the articles in your beamer presentation.

For further hints check out this post.

How to write citations on the right side on beamer

Sometimes when you cite (repeat) entire parts or figures of cited work in presentation it is advisable to write a citation on the right bottom corner  of the slide. This can be done as:

 \begin{flushright}
    \cite{mypaper}
\end{flushright}

How to make two colums horisontally on LaTeX beamer slides

The easiest way to do this is to use \column as

 \begin{columns}[cc]

 \column{0.5\textwidth}
    some content ...
 \column{0.5\textwidth}
    some more content

\end {columns}