Let U be an n-dimensional vector space over a field of characteristic 0. For each positive integer k < min(m, n), let Jk be, the set of all decomposable elements XI 8 ... @ xm in the mth tensor product @U such that dim( xi,. . . , x,) Q k. We characterize those nonsingular linear mappings T on g U s
Additive preservers of non-zero decomposable tensors
β Scribed by Ming-Huat Lim
- Book ID
- 104037217
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 181 KB
- Volume
- 428
- Category
- Article
- ISSN
- 0024-3795
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β¦ Synopsis
Let T be an additive mapping from a tensor product of vector spaces over a field into itself. We describe T for the following two cases: (i) T is surjective and sends non-zero decomposable elements to non-zero decomposable elements, and (ii) T(A) is a non-zero decomposable element if and only if A is a non-zero decomposable element.
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