List questions from c-star-algebras

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Linear Isometry on Positive Elements of a $C^{\ast}$-Algebra

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Reference Request and Category Theoretic Interpretation of a Result on Banach Spaces

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Positive Elements and Inequalities in a $C^*$-algebra

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What is the definition of non-degenerate $C^*$-subalgebras

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accumulation points of spectrum of C$^*$-algebras

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Continuous functional calculus for normal invertible element of a $C^*$-algebra

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Invertibility of Hermitian Square

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An example of unbounded isometry

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infinite direct sum of isometries

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Does $\|\cdot\|$ in a general Banach $\ast$ Algebra preserve order?

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List Question

Spectrum of the product of positive elements of a $C^\ast$-algebra.

Linear Isometry on Positive Elements of a $C^{\ast}$-Algebra

Reference Request and Category Theoretic Interpretation of a Result on Banach Spaces

Why $C_0((-\infty ,-1]\cup [1,+\infty ))$ doesn't have projection?

Positive Elements and Inequalities in a $C^*$-algebra

Invertibility of Positive Elements in a $C^*$-algebra

What is the definition of non-degenerate $C^*$-subalgebras

Compact element in a C$^*$-algebra?

accumulation points of spectrum of C$^*$-algebras

Two definitions of strict topology

Continuous functional calculus for normal invertible element of a $C^*$-algebra

Invertibility of Hermitian Square

An example of unbounded isometry

infinite direct sum of isometries

Does $\|\cdot\|$ in a general Banach $\ast$ Algebra preserve order?

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