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Grassmann Algebra

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ExpTheGeneralizedProduct.nb 2<br />

10.9 Properties of the Generalized Product<br />

Summary of properties<br />

10.10 The Triple Generalized Sum Conjecture<br />

� The generalized <strong>Grassmann</strong> product is not associative<br />

� The triple generalized sum<br />

The triple generalized sum conjecture<br />

� Exploring the triple generalized sum conjecture<br />

� An algorithm to test the conjecture<br />

10.11 Exploring Conjectures<br />

A conjecture<br />

� Exploring the conjecture<br />

10.12 The Generalized Product of Intersecting Elements<br />

� The case Λ < p<br />

� The case Λ ≥ p<br />

� The special case of Λ = p<br />

10.13 The Generalized Product of Orthogonal Elements<br />

� The generalized product of totally orthogonal elements<br />

� The generalized product of partially orthogonal elements<br />

10.14 The Generalized Product of Intersecting Orthogonal Elements<br />

The case Λ < p<br />

� The case Λ ≥ p<br />

10.15 Generalized Products in Lower Dimensional Spaces<br />

Generalized products in 0, 1, and 2-spaces<br />

� 0-space<br />

� 1-space<br />

� 2-space<br />

10.16 Generalized Products in 3-Space<br />

To be completed<br />

10.1 Introduction<br />

In this chapter we define and explore a new product which we call the generalized <strong>Grassmann</strong><br />

product. The generalized <strong>Grassmann</strong> product was originally developed by the author in order to<br />

treat the Clifford product of general elements in a succinct manner. The Clifford product of<br />

general elements can lead to quite complex expressions, however we will show that such<br />

expressions always reduce to simple sums of generalized <strong>Grassmann</strong> products. We discuss the<br />

Clifford product in Chapter 12.<br />

In its own right, the generalized <strong>Grassmann</strong> product leads to a suite of useful identities between<br />

expressions involving exterior and interior products, and also has some useful geometric<br />

applications.<br />

We have chosen to call it the generalized <strong>Grassmann</strong> product because, in specific cases, it<br />

reduces to either an exterior or an interior product.<br />

2001 4 26

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