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Grassmann Algebra

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9 <strong>Grassmann</strong> <strong>Algebra</strong><br />

9.1 Introduction<br />

9.2 <strong>Grassmann</strong> Numbers<br />

� Creating <strong>Grassmann</strong> numbers<br />

� Body and soul<br />

� Even and odd components<br />

� The grades of a <strong>Grassmann</strong> number<br />

� Working with complex scalars<br />

9.3 Operations with <strong>Grassmann</strong> Numbers<br />

� The exterior product of <strong>Grassmann</strong> numbers<br />

� The regressive product of <strong>Grassmann</strong> numbers<br />

� The complement of a <strong>Grassmann</strong> number<br />

� The interior product of <strong>Grassmann</strong> numbers<br />

9.4 Simplifying <strong>Grassmann</strong> Numbers<br />

� Elementary simplifying operations<br />

� Expanding products<br />

� Factoring scalars<br />

� Checking for zero terms<br />

� Reordering factors<br />

� Simplifying expressions<br />

9.5 Powers of <strong>Grassmann</strong> Numbers<br />

� Direct computation of powers<br />

� Powers of even <strong>Grassmann</strong> numbers<br />

� Powers of odd <strong>Grassmann</strong> numbers<br />

� Computing positive powers of <strong>Grassmann</strong> numbers<br />

� Powers of <strong>Grassmann</strong> numbers with no body<br />

� The inverse of a <strong>Grassmann</strong> number<br />

� Integer powers of a <strong>Grassmann</strong> number<br />

� General powers of a <strong>Grassmann</strong> number<br />

9.6 Solving Equations<br />

� Solving for unknown coefficients<br />

� Solving for an unknown <strong>Grassmann</strong> number<br />

9.7 Exterior Division<br />

� Defining exterior quotients<br />

� Special cases of exterior division<br />

� The non-uniqueness of exterior division<br />

9.8 Factorization of <strong>Grassmann</strong> Numbers<br />

The non-uniqueness of factorization<br />

2001 4 5

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