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Grassmann Algebra

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ExploringClifford<strong>Algebra</strong>.nb 27<br />

� Γ p<br />

����Α<br />

�<br />

� Γ��� �Β<br />

�m<br />

p�<br />

k<br />

�Α� m ����Γ<br />

�p<br />

is an arbitrary repeated factor, Α m and Β k<br />

� Α and Β<br />

m k<br />

Α and Β<br />

m k<br />

��1� mp � ����Α<br />

�<br />

�m<br />

�<br />

�<br />

����Α<br />

� Γ<br />

†����<br />

�<br />

�m<br />

p �<br />

�<br />

�<br />

���à p<br />

�<br />

�Β��� Αi ���� Βj � 0<br />

k�<br />

���à p<br />

�<br />

���� k�<br />

����<br />

���� Γ<br />

� p<br />

����Α<br />

� Γ<br />

†����<br />

�<br />

�m<br />

p �<br />

�<br />

�<br />

���à p<br />

��1� mp � ����<br />

�<br />

����Α<br />

�<br />

���� �<br />

� Β��� ���� Γ<br />

�m<br />

p�<br />

k�<br />

p<br />

are arbitrary, Γ p<br />

����Γ<br />

�p<br />

Orthogonal elements<br />

� Α m and Β k<br />

2001 4 26<br />

�<br />

� ��� �<br />

k�<br />

�<br />

� ��� �<br />

k�<br />

are totally orthogonal<br />

Αi ���� Βj � 0<br />

Αi ���� Βj � 0<br />

12.40<br />

12.41<br />

12.42<br />

is a repeated factor totally orthogonal to both<br />

����Α<br />

� Γ<br />

†����<br />

�<br />

�m<br />

p �<br />

�<br />

�<br />

���à p<br />

�<br />

� ��� �<br />

k�<br />

�<br />

���� Γ�����Α �Β� Αi ���� Γs �Βj���� Γs � 0<br />

p�<br />

m k<br />

are totally orthogonal<br />

Α m �Β k<br />

�Α m � Β k<br />

Αi ���� Βj � 0<br />

12.43<br />

12.44

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