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- documentclass[hyperref={pdfencoding=auto}]{beamer} % "Beamer" is a word used in Germany to mean video projector.
- usetheme{Berkeley} % Search online for beamer themes to find your favorite or use the Berkeley theme as in this file.
- usepackage{color} % It may be necessary to set PCTeX or whatever program you are using to output a .pdf instead of a .dvi file in order to see color on your screen.
- usepackage{amsfonts,amssymb,amsmath}
- usepackage{graphicx} % This package is needed if you wish to include external image files.
- theoremstyle{definition} % See Lesson Three of the LaTeX Manual for more on this kind of "proclamation."
- newtheorem*{dfn}{A Reasonable Definition}
- definecolor{kugreen}{RGB}{0,153,76}
- definecolor{kugreenlys}{RGB}{132,158,139}
- definecolor{kugreenlyslys}{RGB}{173,190,177}
- definecolor{kugreenlyslyslys}{RGB}{214,223,216}
- %beamertemplate
- setbeamertemplate{theorems}[numbered]
- usecolortheme[named=kugreen]{structure}
- %useinnertheme{circles}
- usefonttheme[onlymath]{serif}
- %setbeamercovered{transparent}
- setbeamertemplate{blocks}[rounded][shadow=true]
- setbeamercovered{invisible}
- useinnertheme{rectangles}
- title{Authentication Codes}
- author{Abigail A. Villa\ Skezeer John B. Paz}
- institute{Ph.D. Mathematics \ De La Salle University\ texttt{abigail_villa@dlsu.edu.ph // skezeer_john_paz@dlsu.edu.ph}}
- date{November 27, 2017}
- % Remove the % from the previous line and change the date if you want a particular date to be displayed; otherwise, today's date is displayed by default.
- AtBeginSection[] % The commands within the following {} will be executed at the start of each section.
- {
- begin{frame} % Within each "frame" there will be one or more "slides."
- frametitle{Outline} % This is the title of the outline.
- tableofcontents[pausesections] % This will display the table of contents and highlight the current section.
- end{frame}
- } % Do not include the preceding set of commands if you prefer not to have a recurring outline displayed during your presentation.
- begin{document}
- begin{frame}
- titlepage
- end{frame}
- section{Orthogonal Array} % Since this is the start of a new section, our recurring outline will appear here.
- subsection[PRELIMS]{Preliminaries}
- begin{frame}
- frametitle{PRELIMINARIES}
- textbf{Latin Square}\ pause
- A Latin square of order $n$ with entries from an $n-set~X$ is an $n times n$ array $L$ in which every cell contains an element of $X$ such that every row of $L$ is a permutation of $X$ and every column of $L$ is a permutation of $X$.
- begin{block}{Example}
- A Latin square of order 4.\
- [
- begin{array}{|cccc|}
- hline
- 1&2&3&4\
- 4&1&2&3\
- 3&4&1&2\
- 2&3&4&1\
- hline
- end{array}
- ]
- end{block}
- end{frame}
- begin{frame}
- textbf{Quasigroup}\
- textbf{Definition:} Let $X$ be a finite set of cardinality $n$, and let $circ$ be a binary operation defined on $X~(i.e., circ: Xtimes Xlongrightarrow X)$. We say that the pair $(X, circ)$ is a quasigroup of order $n$ provided that the following two properties are satisfied:\
- begin{enumerate}
- item For every $x,yin X$, the equation $xcirc z=y$ has a unique solution for $zin X$.\
- item For every $x,yin X$, the equation $zcirc x=y$ has a unique solution for $zin X$.
- end{enumerate}
- The textit{operation table} of a binary operation $circ$ defined on $X$ is the $|X| times |X|$ array $A=(a_{x,y})$, where $a_{x,y}=xcirc y$
- end{frame}
- begin{frame}
- textbf{Idempotent/Symmetric quasigroup}\
- textbf{Definition:} Suppose $(X,circ)$ is a quasigroup. We say that $(X,circ)$ is an textit{idempotent quasigroup} if $xcirc x =x$ for all $xin X$, and we say that $(X,circ)$ is a textit{symmetric quasigroup} if $xcirc y= y circ x$ for al $x,y in X$.
- end{frame}
- begin{frame}
- These concepts can also be defined for Latin squares in the obvious way: A textit{symmetric Latin square} $L=(mathscr{l}_{x,y})$ .
- end{frame}
- end{document}
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