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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeDec 3rd 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexam finally giving the book by Conner&Floyd its own `category:reference`-entry, for ease of cross-linking <a href="https://ncatlab.org/nlab/revision/The+Relation+of+Cobordism+to+K-Theories/1">v1</a>, <a href="https://ncatlab.org/nlab/show/The+Relation+of+Cobordism+to+K-Theories">current</a>

   am finally giving the book by Conner&Floyd its own category:reference-entry, for ease of cross-linking

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeDec 7th 2020
   • (edited Dec 7th 2020)
   • PermaLink
   Author: Urs
   Format: MarkdownItexThere are quite some typos in this old text. Judging by their nature, they must have been introduced by the non-mathematical person(s) who did the typesetting from the author's handwritten manuscipt. So most of them are harmless, albeit at times confusing. But page 102 puzzles me: it seems to say that the $e_{\mathbb{C}}$-invariant in degree $3 \, mod\, 8$ is $1/2$ instead of $1/12$ -- and it says this twice in a row: in item "d" and again in the last line of the page. Am I mixed up about something, or is this an unfortunate and unlikely double-typo?

   There are quite some typos in this old text. Judging by their nature, they must have been introduced by the non-mathematical person(s) who did the typesetting from the author’s handwritten manuscipt. So most of them are harmless, albeit at times confusing.

   But page 102 puzzles me: it seems to say that the $e_{\mathbb{C}}$-invariant in degree $3 \, mod\, 8$ is $1/2$ instead of $1/12$ – and it says this twice in a row: in item “d” and again in the last line of the page.

   Am I mixed up about something, or is this an unfortunate and unlikely double-typo?