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AlffOrderTransformationMatrix

Returns a list containing information about the transformation from the alffsuborder of the given alfforder to the given alfforder.

Syntax:

L := AlffOrderTransformationMatrix(O);

list
  L  
alfforder
  O  

Description:

The list L contains the denominator d and the n \times n-matrix T with (\alpha|1, … ,\alpha|n) = frac{1}{d} (a|1, … ,a|n)T, where \alpha|1, … ,\alpha|n is a basis of the given alfforder O and a|1, … ,a|n is a basis of the alffsuborder of the given order. If the order O is the equation order, simply d = 1 and T = id are returned.


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