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admissibility (Definition)

Let $ k$ be a field, $ V$ a vector space over $ k$, and $ T\colon V\to V$ a linear operator. We say that a subspace $ W$ of $ V$ is $ T$-admissible if

  1. $ W$ is a $ T$ - invariant subspace;
  2. If $ f \in k[X]$ (See the polynomial ring definition) and $ f(T)x \in W$, there is a vector $ y \in W$ such that $ f(T)x=f(T)y$.



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Cross-references: vector, polynomial ring, invariant subspace, subspace, linear operator, vector space, field
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This is version 3 of admissibility, born on 2003-12-02, modified 2004-03-15.
Object id is 5448, canonical name is Admissibility.
Accessed 3428 times total.

Classification:
AMS MSC15A04 (Linear and multilinear algebra; matrix theory :: Linear transformations, semilinear transformations)

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