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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 internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology 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 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.
   • CommentAuthorzskoda
   • CommentTimeApr 18th 2010
   • (edited Apr 18th 2010)
   • PermaLink
   Author: zskoda
   Format: Markdown[[determinant line bundle]], [[Witten index]], I commented on some of the motivations for introducing a related series of entries in the last paragraph in comment [here](http://www.math.ntnu.no/~stacey/Vanilla/nForum/comments.php?DiscussionID=1095&Focus=8643#Comment_8643). I noticed that we do not have [[Dirac operator]], nor even [[spin representation]]. Additional references at [[quantum anomaly]].

   determinant line bundle, Witten index, I commented on some of the motivations for introducing a related series of entries in the last paragraph in comment here. I noticed that we do not have Dirac operator, nor even spin representation. Additional references at quantum anomaly.

2. • CommentRowNumber2.
   • CommentAuthorDavidRoberts
   • CommentTimeApr 18th 2010
   • (edited Apr 18th 2010)
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexMinor typo: [[determinant line bundle]]

   Minor typo: determinant line bundle

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeJan 1st 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexThis old forgotten entry had but a half-hearted attempt to say something about the Witten index of the superstring (only). I have cleared it, and started afresh. <a href="https://ncatlab.org/nlab/revision/diff/Witten+index/2">diff</a>, <a href="https://ncatlab.org/nlab/revision/Witten+index/2">v2</a>, <a href="https://ncatlab.org/nlab/show/Witten+index">current</a>

   This old forgotten entry had but a half-hearted attempt to say something about the Witten index of the superstring (only). I have cleared it, and started afresh.

   diff, v2, current