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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nforum nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf sheaves simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeAug 3rd 2011
   • (edited Aug 3rd 2011)
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have added to [[C-star algebra]] the statement that the image of a $C^\ast$-algebra under an $\ast$-homomorphism is again $C^\ast$. Also reorganized the Properties-section a bit and added more references.

   I have added to C-star algebra the statement that the image of a $C^\ast$-algebra under an $\ast$-homomorphism is again $C^\ast$.

   Also reorganized the Properties-section a bit and added more references.

2. • CommentRowNumber2.
   • CommentAuthorRodMcGuire
   • CommentTimeAug 3rd 2011
   • PermaLink
   Author: RodMcGuire
   Format: MarkdownItexIs [[C-star]] being <code>quot;</code> wrapped because it has a hyphen in its name?

   Is C-star being quot; wrapped because it has a hyphen in its name?

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeAug 3rd 2011
   • PermaLink
   Author: Urs
   Format: MarkdownItexNo. I have fixed it.

   No. I have fixed it.

4. • CommentRowNumber4.
   • CommentAuthorUrs
   • CommentTimeMar 31st 2013
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have tried to polish a bit at _[[C-star-algebra]]_. Also created _[[dense subalgebra]]_, but then ran out of steam before putting anything substantial there.

   I have tried to polish a bit at C-star-algebra.

   Also created dense subalgebra, but then ran out of steam before putting anything substantial there.

5. • CommentRowNumber5.
   • CommentAuthorTobyBartels
   • CommentTimeMar 31st 2013
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexSee if what I wrote at [[dense subalgebra]] is appropriate.

   See if what I wrote at dense subalgebra is appropriate.

6. • CommentRowNumber6.
   • CommentAuthorTobyBartels
   • CommentTimeMar 31st 2013
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexI\'m not sure why our [[C-star-algebra]] didn\'t believe in real $C^*$-algebras, but now I\'ve generalised it to handle even $p$-adic ones.

   I'm not sure why our C-star-algebra didn't believe in real $C^*$-algebras, but now I've generalised it to handle even $p$-adic ones.

7. • CommentRowNumber7.
   • CommentAuthorUrs
   • CommentTimeMar 31st 2013
   • PermaLink
   Author: Urs
   Format: MarkdownItexThanks, good. (Until yetserday the entry even demanded a "complex algebra over the complex numbers" :-)

   Thanks, good.

   (Until yetserday the entry even demanded a “complex algebra over the complex numbers” :-)

8. • CommentRowNumber8.
   • CommentAuthorUrs
   • CommentTimeMar 31st 2013
   • PermaLink
   Author: Urs
   Format: MarkdownItexI maded _[[commutative C-star-algebra]]_ exist.

   I maded commutative C-star-algebra exist.