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    • just a stub for the moment, in order to make links work

      v1, current

    • stub entry, for the moment just so as to satisfy links

      v1, current

    • a stub, on occasion of today’s

      and to provide the previously missing link at flavour anomaly for

      • David Marzocca, Addressing the B-physics anomalies in a fundamental Composite Higgs Model, JHEP07(2018)121 (arXiv:1803.10972)

      v1, current

    • there is an old article (Berends-Gastman 75) that computes the 1-loop corrections due to perturbative quantum gravity to the anomalous magnetic moment of the electron and the muon. The result turns out to be independent of the choice of (“re”-)normalization (hence what they call “finite”).

      I have added a remark on this in the (g2)(g-2)-entry here and also at quantum gravity here.

    • in order to satisfy links, but maybe really in procrastination of other duties, I wrote something at quantum gravity

    • just to make pointers work, for the moment

      v1, current

    • some minimum, just to make links work

      v1, current

    • started some minimum, to satisfy links

      same comment applies as I just made at chemical element:

      added pointer to

      For a while I thought that this proposal is completely crazy. But in view of the established success of Skyrmion models for atomic nuclei and in particular with these viewed within the Sakai-Sugimoto model, it doesn’t seem completely crazy anymore. I still think it must be admitted that the concrete evidence that there is an actual model of nuclie by complex surfaces is extremely weak and very vague, but I can see now why it is interesting and maybe even tantalizing.

      v1, current

    • changed page name to singluar

      added mentioning of atomic number

      added pointer to

      For a while I thought that this proposal is completely crazy. But in view of the established success of Skyrmion models for atomic nuclei and in particular with these viewed within the Sakai-Sugimoto model, it doesn’t seem completely crazy anymore. I still think it must be admitted that the concrete evidence that there is an actual model of nuclie by complex surfaces is extremely weak and very vague, but I can see now why it is interesting and maybe even tantalizing.

      diff, v2, current

    • Page created, but author did not leave any comments.

      v1, current

    • example of nominal sets with separated tensor added, see Chapter 3.4 of Pitts monograph Nominal Sets

      Alexander Kurz

      diff, v21, current

    • Removed a strange paragraph that seems to have been present from the beginning. The page could do with some work.

      diff, v4, current

    • Page created, but author did not leave any comments.

      v1, current

    • added to simplicial object a section on the canonical simplicial enrichment and tensoring of D Δ opD^{\Delta^{op}} for DD having colimits and limits.

    • I wrote out a proof that geometric realization of simplicial sets valued in compactly generated Hausdorff spaces is left exact, using essentially the observation that simplicial sets are the classifying topos for intervals, combined with various soft topological arguments. I left a hole to be plugged, that geometric realizations are CW complexes. I also added a touch to filtered limit, and removed a query of mine from triangulation.

      I wanted a “pretty proof” for this result on geometric realization, centered on the basic topos observation (due to Joyal). I was hoping Johnstone did this himself in his paper on “a topological topos”, but I couldn’t quite put it together on the basis of what he wrote, so my proof is sort of “homemade”. I wouldn’t be surprised if it could be made prettier still. [Of course, “pretty” is in the eye of the beholder; mainly I want conceptual arguments which avoid fiddling around with the combinatorics of shuffle products (which is what I’m guessing Gabriel and Zisman did), decomposing products of simplices into simplices.]

    • I added references to John Baez’s two blog posts on The Geometric McKay Correspondence, Part I, Part II.

      I hadn’t realised the length of legs in the Dynkin diagrams corresponds to the stabilizer order on vertices, edges, faces in the corresponding Platonic solid. So 2,3,5 for E 8E_8 and the icosahedron.

      diff, v5, current

    • I have created the entry recollement. Adjointness, cohesiveness etc. lovers should be interested.

    • starting something, not done yet, but need to save

      v1, current

    • started something at quiver gauge theory; some very basic sentences on the Idea of it all, and some bare minimum of references.

      This is a vast subject, and clearly that entry deserves to be expanded much further.

      In the course of creating this I needed to create brief entries B-brane and exceptional collection.

    • Page created, but author did not leave any comments.

      v1, current