Want to take part in these discussions? Sign in if you have an account, or apply for one below
Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.
I am slowly creating a bunch of entries on basic concepts of equivariant stable homotopy theory, such as
At the moment I am mostly just indexing Stefan Schwede’s
I have added pdf-links to the reference
and promoted this to the top of the list, since I suppose this is the most comprehensive account that a reader might want to go to first. Will also edit accordingly at topological stack
brief category:people-entry for hyperlinking references at orbifold and hyperbolic manifold, in particular to this excellent book:
I kept being annoyed about the nature of discussion of the “multiverse” (the one in cosmology, not the one in set theory). Now I thought instead of steadily being annoyed, I should start an Lab entry that does it better. So I did now (or tried to), at multiverse.
Todd,
you added to Yoneda lemma the sentence
In brief, the principle is that the identity morphism is the universal generalized element of . This simple principle is surprisingly pervasive throughout category theory.
Maybe it would be good to expand on that. One might think that the universal property of a genralized element is that every other one factors through it uniquely. That this is true for the generalized element is a tautological statement that does not need or imply the Yoneda lemma, it seems.
brief category:people-entry for hyperlinking references at moonshine, duality between heterotic and type II string theory, Riemannian orbifold and maybe elsewhere
Added some examples to allegory, including that of modular lattice as one-object allegory.
added more references to 2-spectral triple (as far as I can see Jürg Fröhlich with his students was the first to try to formalize this to some extent)
felt like archiving a quote by Paul Taylor somewhere, it is now at folklore.
Besides being funny, it is actually a useful comment for the newbie, and so I linked to it from category theory.
I am beginning to give the entry FQFT a comprehensive Exposition and Introduction section.
So far I have filled some genuine content into the first subsection Quantum mechanics in Schrödinger picture.
But I have to quit now. This isn’t even proof-read yet. So don’t look at it unless you feel more in editing-mood than in pure-reading-mood.
I noticed that augmented simplicial set did not point anywhere, so i created the entry. But have no energy to put anything of substance there right now.
Over at Monster group, I wrote out a description via a group presentation. Of course, it makes no pretense to be illuminating (although it is well-known to experts like Conway; it’s probably in his book with Sloane on the Leech lattice and sphere packings).
added pointer to automorphisms of a super vertex operator algebra and to
I made Cayley plane a little less stubby.