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15
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A sufficient condition for comapct operators?

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#operator-theory #operator-algebras #k-theory
69
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Construct a partition of unity in the centralizer of a von Neumann algebra

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#operator-algebras #von-neumann-algebras
72
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Two sided ideal of a von Neumann algebra is linear span of its positive elements

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#functional-analysis #ideals #operator-algebras #c-star-algebras #von-neumann-algebras
81
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matrix almost commuting with a projection

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#matrices #operator-algebras #projection-matrices
81
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Norm of Multiplicative identity(If it exists) in a Normed Algebra

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#functional-analysis #normed-spaces #operator-theory #operator-algebras
77
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a partial isometry generates a finite dimensional factor

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#operator-algebras #von-neumann-algebras
249
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Approximate unit/identity in Banach and or C*-algebra

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#operator-algebras #c-star-algebras #banach-algebras
60
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Kernel of GNS construction of Weyl Algebra

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#operator-algebras #c-star-algebras #quantum-mechanics
138
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Direct sum of two Hilbert spaces is a inner product.

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#functional-analysis #hilbert-spaces #operator-algebras #direct-sum
522
Views

Norm of bounded operators of direct sum

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#functional-analysis #operator-theory #hilbert-spaces #operator-algebras #direct-sum
52
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element of minimal $\|·\|$ norm in a closed convex set

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#operator-algebras #von-neumann-algebras
177
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Prove that the domain of unbounded self-adjoint operator is strictly larger than that of its square

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#functional-analysis #operator-theory #hilbert-spaces #operator-algebras #adjoint-operators
99
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projections in a diffuse von Neumann algebra

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#operator-algebras #von-neumann-algebras
220
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Every C*-algebra admits an approximate unit.

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#functional-analysis #operator-algebras #c-star-algebras
38
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Are all $*$-homomorphisms unitarily equivalent to the trivial one?

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#linear-algebra #operator-algebras

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