Induced operators on symmetry classes of tensors |
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Authors: | Chi-Kwong Li Alexandru Zaharia |
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Institution: | Department of Mathematics, College of William and Mary, P.O. Box 8795, Williamsburg, Virginia 23187-8795 ; Department of Mathematics, University of Toronto, Toronto, Ontario, Canada M5S 3G3 and Institute of Mathematics of The Romanian Academy, 70700 Bucharest, Romania |
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Abstract: | Let be an -dimensional Hilbert space. Suppose is a subgroup of the symmetric group of degree , and is a character of degree 1 on . Consider the symmetrizer on the tensor space defined by and . The vector space is a subspace of , called the symmetry class of tensors over associated with and . The elements in of the form are called decomposable tensors and are denoted by . For any linear operator acting on , there is a (unique) induced operator acting on satisfying In this paper, several basic problems on induced operators are studied. |
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Keywords: | Symmetry class of tensors linear operator induced operator |
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