| 1. | Thus, for the above example, the incidence matrix is simply
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| 2. | The line line matrix can be obtained from the incidence matrix.
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| 3. | This concerns the time in which the incidence matrix can be generated.
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| 4. | Thus the corresponding incidence matrix of this abstract polytope may be shown as:
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| 5. | It affects the incidence matrix by negating the rows of the switched vertices.
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| 6. | In turn, the incidence matrix can be seen also as describing a hypergraph.
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| 7. | An incidence matrix is not uniquely determined since it depends upon the arbitrary ordering of the points and the lines.
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| 8. | The incidence matrix of block designs provide a natural source of interesting block codes that are used as error correcting codes.
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| 9. | For example, the relation " contains " in the detailed example above can be represented by a 6? incidence matrix:
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| 10. | The generalized incidence matrix for such hypergraphs is, by definition, a square matrix, of a rank equal to the total number of vertices plus edges.
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