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Spectra of elements of a Banach algebra and the role played by the Hahn-Banach Theorem.

dec 19 at 3:42 Alexandre Eremenko 10.6k●1●24●40

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A certain theorem about finite-dimensional Lie algebras over an algebraically closed field with zero characteristic.

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dec 7 at 22:13 Leonard 466●10

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The Speed of Gravitational Waves in General Relativity

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nov 10 at 22:34 Igor Khavkine 3,108●1●10●18

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On similar concepts in mathematics whose similarity is a non-trivial fact.

definitions gm.general-mathematics big-list

dec 19 at 20:27 Yemon Choi 8,455●1●19●45

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A Question About Free Resolutions

ac.commutative-algebra commutative-rings modules resolution

dec 17 at 23:22 Steven Sam 5,280●1●16●35

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On the definition of ‘smooth vectors’ in Rieffel’s “Deformation Quantization for Actions of $ \mathbb{R}^{d} $”.

frechet-manifold group-actions quantization definitions

apr 9 at 11:24 Peter Michor 5,567●11●18

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Statements which were given as axioms, which later turned out to be false. (2)

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A novice question on Quantum Mechanics

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Request: intermediate-level proof: every 2-homology class of a 4-manifold is generated by a surface.

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A certain theorem about finite-dimensional Lie algebras over an algebraically closed field with zero characteristic.

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Spectra of elements of a Banach algebra and the role played by the Hahn-Banach Theorem.

A certain theorem about finite-dimensional Lie algebras over an algebraically closed field with zero characteristic.

The Speed of Gravitational Waves in General Relativity

On similar concepts in mathematics whose similarity is a non-trivial fact.

A Question About Free Resolutions

On the definition of ‘smooth vectors’ in Rieffel’s “Deformation Quantization for Actions of $ \mathbb{R}^{d} $”.

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