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The Cell Method by Elena Ferretti

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CHAPTER 4

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CLASSIFICATION OF THE GLOBAL VARIABLES AND THEIR RELATIONSHIPS

In Section 4.1, global variables are classified according to the role they play in a theory. This second type of classification distinguishes between configuration, source, and energetic variables. It is discussed how the configuration and the source variables have two different orientations, inner rather than outer orientation. This, together with the need to provide a description of vector spaces that is independent of the orientation of the embedding space, require to use two different cell complexes, whose geometrical elements stand by each other in relation of duality. ...

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