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On maps preserving operators of local spectral radius zero
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文摘
Let e7e0dc6f9c83" title="Click to view the MathML source">L(X) be the algebra of all bounded linear operators on a complex Banach space X. We describe surjective linear maps ϕ   on e7e0dc6f9c83" title="Click to view the MathML source">L(X) that satisfy
bd19c92fc17a918fe71dd86451d0" title="Click to view the MathML source">rϕ(T)(x)=0⟹rT(x)=0
for every e80a5bf6f8136a953e91f47a14f0" title="Click to view the MathML source">x∈X and bd335f84309015" title="Click to view the MathML source">T∈L(X). We also describe surjective linear maps ϕ   on e7e0dc6f9c83" title="Click to view the MathML source">L(X) that satisfy
ae036eecd0da682eef7c" title="Click to view the MathML source">rT(x)=0⟹rϕ(T)(x)=0
for every e80a5bf6f8136a953e91f47a14f0" title="Click to view the MathML source">x∈X and bd335f84309015" title="Click to view the MathML source">T∈L(X). Furthermore, we characterize maps ϕ   (not necessarily linear nor surjective) on e7e0dc6f9c83" title="Click to view the MathML source">L(X) which satisfy
e70efc1eb5fb46918cba0498e3dc5e">View the MathML source
for every e80a5bf6f8136a953e91f47a14f0" title="Click to view the MathML source">x∈X and e88db17bf407ac2ea" title="Click to view the MathML source">T,S∈L(X).

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