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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• Stub with reference and basic quotes

• added to G2 the definition of $G_2$ as the subgroup of $GL(7)$ that preserves the associative 3-form.

• added statement of the definition

• am starting a stub, for the moment just so as to have a place to record some references

• some minimum, for the moment just so as to make links work

• for ease of reference

• am giving this group its own entry, so that every entry using it (such as quaternion-Kähler manifold) makes sure that the notation is not being confused with the direct product group.

What’s the source of this notation?

• At Fréchet space I have added to the Idea-section a paragraph motivating the definition via families of seminorms from the example of $\mathbb{R}^\infty = \underset{\longleftarrow}{\lim}_n \mathbb{R}^n$. And I touched the description of this example in the main text, now here.

• corrected spelling of “transcribed” in point 2 following Def. 2.1

cofo

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

• added a minimum sentence to the Definition-section

• I am splitting off an entry classification of finite rotation groups from ADE classification in order to collect statements and references specific to the classification of finite subgroups of $SO(3)$ and $SU(2)$.

Is there a canonical reference for the proof of the classification statement? I find lots of lecture notes that give the proof, but all of them without citing sources or original publications of proofs.

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

Maxence Mayrand

• added in CW-complex in the Examples section something about noncompact smooth manifolds.

Eventually it would be good to state here precisely Milnor’s theorem etc. Googling around I seem to see a lot of misleading imprecision in the usual statements along these lines (on Wikipedia and MO) concerning the distinctions between countably generated and general CW-complexes and concerning homotopy equivalence vs weak homotopy equivalence.

• Added some references to sheaf-theoretic interpretations of choice sequences

• Created page to record statements and the relation between them.

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

• Stub

• just for completeness

• just for completeness

• for the moment just to make links work