<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- --> <!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" > <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head><title>splitCharacter -- Decomposes a symmetric polynomial as a sum of schur functions</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="_straighten.html">next</a> | <a href="_schur__Modules__Map.html">previous</a> | <a href="_straighten.html">forward</a> | <a href="_schur__Modules__Map.html">backward</a> | up | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div> </td> </tr> </table> <hr/> <div><h1>splitCharacter -- Decomposes a symmetric polynomial as a sum of schur functions</h1> <div class="single"><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>splitCharacter(c)</tt></div> </dd></dl> </div> </li> <li><div class="single">Inputs:<ul><li><span><tt>c</tt>, <span>a <a href="../../Macaulay2Doc/html/___Ring__Element.html">ring element</a></span>, A Symmetric polynomial</span></li> </ul> </div> </li> <li><div class="single">Outputs:<ul><li><span><tt>p</tt>, <span>a <a href="../../Macaulay2Doc/html/___Ring__Element.html">ring element</a></span></span></li> </ul> </div> </li> </ul> </div> <div class="single"><h2>Description</h2> <div><div>Expresses a symmetric polynomial c as a linear combination of schur functions</div> <table class="examples"><tr><td><pre>i1 : c=character({{1,1,1},{2}},4) 3 3 4 3 2 2 3 4 3 2 2 2 2 3 2 o1 = x x + x x x + 2x x x + 2x x x + x x x + 2x x x + 2x x x + 2x x x 0 1 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 ------------------------------------------------------------------------ 3 3 2 3 2 3 3 3 4 4 3 2 2 3 + x x + 2x x x + 2x x x + x x + x x x + x x x + 2x x x + 2x x x 0 2 0 1 2 0 1 2 1 2 0 1 2 0 1 3 0 1 3 0 1 3 ------------------------------------------------------------------------ 4 4 3 2 2 3 4 3 2 + x x x + x x x + 4x x x x + 5x x x x + 4x x x x + x x x + 2x x x 0 1 3 0 2 3 0 1 2 3 0 1 2 3 0 1 2 3 1 2 3 0 2 3 ------------------------------------------------------------------------ 2 2 2 2 3 2 2 3 3 2 3 + 5x x x x + 5x x x x + 2x x x + 2x x x + 4x x x x + 2x x x + 0 1 2 3 0 1 2 3 1 2 3 0 2 3 0 1 2 3 1 2 3 ------------------------------------------------------------------------ 4 4 3 2 2 2 2 3 2 3 2 2 2 x x x + x x x + 2x x x + 2x x x + 2x x x + 2x x x + 5x x x x + 0 2 3 1 2 3 0 1 3 0 1 3 0 1 3 0 2 3 0 1 2 3 ------------------------------------------------------------------------ 2 2 3 2 2 2 2 2 2 2 2 2 3 2 3 2 5x x x x + 2x x x + 2x x x + 5x x x x + 2x x x + 2x x x + 2x x x 0 1 2 3 1 2 3 0 2 3 0 1 2 3 1 2 3 0 2 3 1 2 3 ------------------------------------------------------------------------ 3 3 2 3 2 3 3 3 2 3 3 2 3 + x x + 2x x x + 2x x x + x x + 2x x x + 4x x x x + 2x x x + 0 3 0 1 3 0 1 3 1 3 0 2 3 0 1 2 3 1 2 3 ------------------------------------------------------------------------ 2 3 2 3 3 3 4 4 4 2x x x + 2x x x + x x + x x x + x x x + x x x 0 2 3 1 2 3 2 3 0 1 3 0 2 3 1 2 3 o1 : R</pre> </td></tr> <tr><td><pre>i2 : splitCharacter(c) o2 = s + s 4,1,1 3,3 o2 : schurRing (s, 4)</pre> </td></tr> </table> </div> </div> <div class="waystouse"><h2>Ways to use <tt>splitCharacter</tt> :</h2> <ul><li>splitCharacter(RingElement)</li> </ul> </div> </div> </body> </html>