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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.
   • CommentAuthorUrs
   • CommentTimeFeb 18th 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexstarting something, not done yet but need to save <a href="https://ncatlab.org/nlab/revision/small+instanton/1">v1</a>, <a href="https://ncatlab.org/nlab/show/small+instanton">current</a>

   starting something, not done yet but need to save

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeFeb 18th 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexnow some content in place <a href="https://ncatlab.org/nlab/revision/small+instanton/1">v1</a>, <a href="https://ncatlab.org/nlab/show/small+instanton">current</a>

   now some content in place

   v1, current

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeFeb 20th 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded also comment on and pointer to * [[Ori Ganor]], [[Amihay Hanany]], _Small $E_8$ Instantons and Tensionless Non-critical Strings_, Nucl. Phys. B474 (1996) 122-140 ([arXiv:hep-th/9602120](https://arxiv.org/abs/hep-th/9602120)) <a href="https://ncatlab.org/nlab/revision/diff/small+instanton/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/small+instanton/4">v4</a>, <a href="https://ncatlab.org/nlab/show/small+instanton">current</a>

   added also comment on and pointer to

   • Ori Ganor, Amihay Hanany, Small $E_8$ Instantons and Tensionless Non-critical Strings, Nucl. Phys. B474 (1996) 122-140 (arXiv:hep-th/9602120)

   diff, v4, current

4. • CommentRowNumber4.
   • CommentAuthorUrs
   • CommentTimeFeb 25th 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded the twso original references giving the F-theory picture: * [[Paul Aspinwall]], [[Mark Gross]], _The $SO(32)$ Heterotic String on a K3 Surface_, Phys. Lett. B387 (1996) 735-742 ([arXiv:hep-th/9605131](https://arxiv.org/abs/hep-th/9605131)) * [[Paul Aspinwall]], [[David Morrison]], _Point-like Instantons on K3 Orbifolds_, Nucl. Phys. B503 (1997) 533-564 ([arXiv:hep-th/9705104](https://arxiv.org/abs/hep-th/9705104)) <a href="https://ncatlab.org/nlab/revision/diff/small+instanton/5">diff</a>, <a href="https://ncatlab.org/nlab/revision/small+instanton/5">v5</a>, <a href="https://ncatlab.org/nlab/show/small+instanton">current</a>

   added the twso original references giving the F-theory picture:

   • Paul Aspinwall, Mark Gross, The $SO(32)$ Heterotic String on a K3 Surface, Phys. Lett. B387 (1996) 735-742 (arXiv:hep-th/9605131)

   • Paul Aspinwall, David Morrison, Point-like Instantons on K3 Orbifolds, Nucl. Phys. B503 (1997) 533-564 (arXiv:hep-th/9705104)

   diff, v5, current

5. • CommentRowNumber5.
   • CommentAuthorUrs
   • CommentTimeOct 6th 2021
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded pointer to today's * Tony Gherghetta, Alex Pomarol, *Small Instantons in Weakly-Gauged Holographic Models* ([arXiv:2110.01762](https://arxiv.org/abs/2110.01762)) <a href="https://ncatlab.org/nlab/revision/diff/small+instanton/8">diff</a>, <a href="https://ncatlab.org/nlab/revision/small+instanton/8">v8</a>, <a href="https://ncatlab.org/nlab/show/small+instanton">current</a>

   added pointer to today’s

   • Tony Gherghetta, Alex Pomarol, Small Instantons in Weakly-Gauged Holographic Models (arXiv:2110.01762)

   diff, v8, current