PolynomialIdeals[Contract] - contract an ideal to a larger ring
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Calling Sequence
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Contract(J, X)
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Parameters
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J
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polynomial ideal
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X
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-
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set of variable names
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Description
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The Contract command contracts the image of an ideal in back to the polynomial ring .
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The typical use of this command is to contract the result of a zero-dimensional decomposition back to the original ring. This is part of a process used to extend algorithms for zero-dimensional ideals to ideals of positive dimension. For additional details, see the help page for ZeroDimensionalDecomposition.
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Examples
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References
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Becker, T., and Weispfenning, V. Groebner Bases. New York: Springer-Verlag, 1993.
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Download Help Document
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