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Matrix Space To Keep The Rank Commutative Additive Mapping

Posted on:2007-07-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y Q YangFull Text:PDF
GTID:2190360185969669Subject:Applied Mathematics
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Let n ≥ 2 be a given integer. Let k ≥ 2 be an arbitrary given integer. Let F be a field of characterstic 2 and Mn(F) be the set of all n x n matrices on F and Tn(F) be the set of all n x n upper triangular matrices on F. Suppose M is a matrix set over F and V is a subset of M × … × M .Suppose φ is a map from M into itself. Then φ is called a strong preserver k— tuple of matrices A1, …, Ak rank permutable on M if φ satisfying rank = rank if and only if rank (A1A2 … Ak) = rank , for all σ∈ Sk, where (A1, …, Ak) ∈ V, Sk is the symmetric group on k elements; φ iscalled a strong preserver k— tuple of matrices A1, …, Ak rank reverse per-mutable on M if σ = ∈ Sk. For k = 2, φ are calledstrong preserver of rank commutativity on M.In Chapter 2 of this paper, we characterize the additive surjective map on Mn(F) that strong preserve the set of rank commutativity, and the additive surjective map on Mn(F) that strong preserve the set of rank reverse permutability matrix k—tuples and rank strong permutability matrix k—tuples. In Chapter 3, We characterize the additive surjective map on Tn(F) that strong preserve the set of rank commutativity, and the additive surjective map on Tn(F) that strong preserve the set of rank reverse permutability matrix k—tuples and rank strong permutability matrix k—tuples.
Keywords/Search Tags:Additive surjective map, matrix spaces, Triangular matrix spaces, rank reverse permutability
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