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brief category:people entry for hyperlinking references at Elmendorf’s theorem
added pointer to today’s
an entry with nothing but a list of references, to be !include-ed into the References-sections of DBI-action and of higher curvature correction
brief category: people-entry for hyperlinking references at DBI-action and higher curvature correction
cross-linked with Euler form and added these pointers:
Discussion of Euler forms (differential form-representatives of Euler classes in de Rham cohomology) as Pfaffians of curvature forms:
{#MathaiQuillen86} Varghese Mathai, Daniel Quillen, below (7.3) of Superconnections, Thom classes, and equivariant differential forms, Topology Volume 25, Issue 1, 1986 (10.1016/0040-9383(86)90007-8)
{#Wu05} Siye Wu, Section 2.2 of Mathai-Quillen Formalism, pages 390-399 in Encyclopedia of Mathematical Physics 2006 (arXiv:hep-th/0505003)
Hiro Lee Tanaka, Pfaffians and the Euler class, 2014 (pdf)
{#Nicolaescu18} Liviu Nicolaescu, Section 8.3.2 of Lectures on the Geometry of Manifolds, 2018 (pdf, MO comment)
brief category:people-entry for hyperlinking references at Skyrme model and ω-meson
brief category:people-entry for hyperlinking references at IKKT matrix model
brief category: people-entry for hyperlinking references at large N limit and holographic QCD
(not sure that I identified the canonical or even right webpage to link to)
brief category:people-entry for hyperlinking references at matrix model, BFSS matrix model, IKKT matrix model, BMN matrix model, light cone gauge quantization, fuzzy sphere and maybe elsewhere
am finally splitting this off as a stand-alone page (material used to be at cosmological constant and at F-theory). Added a paragraph linking with inhomogeneous cosmology.
some minimum, in order to go along with the recent addition to Witten’s Dark Fantasy.
brief category: people-entry for hyperlinking references at Skyrmion and at chiral perturbation theory
brief category: people-entry for hyperlinking references at Skyrmion and at chiral perturbation theory
Since we had an unfulfilled link to almost mathematics and someone was good enough to tweet about it, I thought I’d copy it in. No time at present to neaten it up.
starting a stub, for the moment just to record som references on potential flavour anomalies in kaon-decays:
brief category:people-entry for hyperlinking references at vector meson dominance
brief category: people-entry for hyperlinking references at holographic QCD
brief category: people-entry for hyperlinking references at gauge theory, large N limit and holographic QCD
added to axion a pointer to this recent article:
Joseph P. Conlon, M.C. David Marsh, Searching for a 0.1-1 keV Cosmic Axion Background (arXiv:1305.3603)
Primordial decays of string theory moduli at naturally generate a dark radiation Cosmic Axion Background (CAB) with energies. This CAB can be detected through axion-photon conversion in astrophysical magnetic fields to give quasi-thermal excesses in the extreme ultraviolet and soft X-ray bands. Substantial and observable luminosities may be generated even for axion-photon couplings . We propose that axion-photon conversion may explain the observed excess emission of soft X-rays from galaxy clusters, and may also contribute to the diffuse unresolved cosmic X-ray background. We list a number of correlated predictions of the scenario.
An ‘anonymous coward’ has made quite substantial changes to Geometric nerve of a bicategory, which do not seem to me to be quite fair to Jack Duskin’s contribution. Ross Street makes it clear that Jack and he worked together on the start of the orientals project. Orientals are not mentioned in the entry except for the referenced paper. Also the term geometric nerve is the term used by Duskin. If the person who has changed things is concerned about precedence of papers then they should have mentioned Boardman and Vogt, and Cordier, who both provided insights that led to the definition. What do others of you think?
I have started an article countable chain condition. So far most of the discussion is about topological spaces. (Additional small recent edits at separable space and metric space.)
I moved (n,k)-transformation to transfor, as seemed to be agreed upon by those who spoke up in the discussion there.
created an entry category of being, for completeness.
A general remark: people often write that, unfortunately or not, Eilenberg-MacLane’s term “category” is not that of, say, Kant. But in fact if read this way here, following Lawvere, then the former is a good formalization of the latter, after all.
at complete Boolean algebra I fixed the missing and then added a pointer to Set – Properties – Opposite category and Boolean algebras.
As a welcome means of procrastinating work on spectral sequence, I created G2-MSSM and touched or created stubs for a bunch of related entries, such as adding references to G2-manifold, creating model (in particle physics), disambiguating at model etc. pp.
added more details to cotangent complex
Beginning stub of a new article on the cotangent complex in derived algebraic geometry. Whereas the existing article focuses on explicit constructions (e.g. via stabilization or via derived functors), the present one approaches the subject from the point of view of derived deformation theory, emphasizing universal properties. Chose not to include as subsection of the existing article because did not want to disrupt the consistent narrative there.
Jake Bian
I did the following to dependent product:
rearranged the section outline somewhat
added the statement that in type theory may be written ;
added a Properties-section
added statement and proof of the relation of dependent product to spaces of sections