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    • starting a stub. Nothing here yet, but need to save.

      v1, current

    • At crossed module it seems we are missing what i think should be the prototypical example: the relative second homotopy group π 2(X,A)\pi_2(X,A) together with the bundary map δ:π 2(X,A)→π 1(A)\delta:\pi_2(X,A)\to \pi_1(A) and the π 1(A)\pi_1(A)-action on π 2(X,A)\pi_2(X,A). As someone confirms this example is correct I’ll add it to crossed module.

    • Changed typo’d “pyschoaccoustics” to correct “psychoacoustics”.

      Anonymous

      diff, v16, current

    • starting something – not done yet

      v1, current

    • I added a reference to a paper of mine

      Amnon Yekutieli

      diff, v48, current

    • Adjust the idea section. Representability is a property of a multicategory, rather than a construction on monoidal categories.

      diff, v13, current

    • I reorganized linearly distributive category by moving the long block of history down to the bottom, adding an “Idea” section and a description of how **-autonomous categories give rise to linearly distributive ones and linearly distributive ones give rise to polycategories. I also cross-linked the page better with polycategory and star-autonomous category.

    • A bare minimum, for the moment just in order to make the link work at all.

      (And leaving much room for disambiguation.)

      v1, current

    • added pointer to:

      removed the following ancient query box discussion:

      +–{.query} Left I could understand, but right? —Toby

      The way I rewrote it explains it. It is unfortunate that the Eilenberg-Watts theorem treated in Bass was using only right adjoint functors so later they dropped word right. – Zoran

      Thanks. —Toby =–

      diff, v12, current

    • added missing publication data to some references, and added this new reference:

      • D. Melnikov, A. Mironov, S. Mironov, A. Morozov, An. Morozov, A modular functor which is universal for quantum computation, Nucl. Phys. B926 (2018) 491-508 (arXiv:1703.00431)

      diff, v5, current

    • just for completeness, since I want to be able to link to this term

      v1, current

    • Describing the arrangements which have been made for funding of the nLab in collaboration with the Topos Institute. The page, linked to from the home page, is intended to be fairly general; specific requests for donations can be made elsewhere.

      v1, current

    • Added a couple of recent references in condensed matter physics.

      diff, v12, current

    • brief category:people-entry for hyperlinking references

      v1, current

    • brief category:people-entry for hyperlinking references

      v1, current

    • starting something on the concept introduced in

      • Sergei O. Ivanov, Roman Mikhailov: A higher limit approach to homology theories, Journal of Pure and Applied Algebra 219 6 (2015) 1915-1939 [arXiv:1309.4920, doi:10.1016/j.jpaa.2014.07.016]

      • Sergei O. Ivanov, Roman Mikhailov: Higher limits, homology theories and fr\mathbf{fr}-codes, in: Combinatorial and Toric Homotopy, Lecture Notes Series, Institute for Mathematical Sciences, National University of Singapore (2017) 229-261 [arXiv:1510.09044, doi:10.1142/9789813226579_0004]

      but for the moment there is little more than these references

      v1, current

    • Re-instantiating the entry announced here, with slight change to title and text.

      v1, current

    • fixed the statement of Example 5.2 (this example) by restricting it to 𝒞=sSet\mathcal{C} = sSet

      diff, v36, current

    • Zoran,

      I wanted to add a reference to holomorphic Chern-Simons theory, only to realize that the entry didn't exist yet. Didn't you recently write something about holomorphic CS? I can't find it right now...

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

      v1, current

    • fix wrong definition of free group action

      Alexey Muranov

      diff, v32, current

    • Added a “warning” for something that tripped me up: the classifying topos of a classical first-order theory is typically not Boolean, even though the classifying pretopos is Boolean. For a topos to be Boolean is much stronger – as Blass and Scedrov showed, it implies ℵ 0\aleph_0-categoricity.

      diff, v31, current

    • Added references for the path integral approach.

      diff, v4, current

    • starting something – not done yet

      v1, current

    • created a currently fairly empty entry quantum measurement, just so as to have a place where to give a commented pointer to the article

      • Klaas Landsman, Robin Reuvers, A Flea on Schrödinger’s Cat, Found. Phys. 43, 373-407 (2013) (arXiv:1210.2353)

    • the entry group algebra had been full of notation mismatch and also of typos. I have reworked it now.

    • Added doi and pointer to relevant sections to

      • Marcelo Aguilar, Samuel Gitler, Carlos Prieto, section 6 of Algebraic topology from a homotopical viewpoint, Springer (2002) (toc pdf, doi:10.1007/b97586)

        (EM-spaces are constructed in section 6, the cohomology theory they represent is discussed in section 7.1, and its equivalence to singular cohomology is Corollary 12.1.20)

      diff, v25, current

    • brief category:people-entry for hyperlinking references

      v1, current

    • brief category:people-entry for hyperlinking references

      v1, current

    • following discussion here I am starting an entry with a bare list of references (sub-sectioned), to be !include-ed into the References sections of relevant entries (mainly at homotopy theory and at algebraic topology) for ease of updating and syncing these lists.

      The organization of the subsections and their items here needs work, this is just a start. Let’s work on it.

      I’ll just check now that I have all items copied, and then I will !include this entry here into homotopy theory and algebraic topology. It may best be viewed withing these entries, because there – but not here – will there be a table of contents showing the subsections here.

      v1, current

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