Papers
Topics
Authors
Recent
Gemini 2.5 Flash
Gemini 2.5 Flash
143 tokens/sec
GPT-4o
7 tokens/sec
Gemini 2.5 Pro Pro
46 tokens/sec
o3 Pro
4 tokens/sec
GPT-4.1 Pro
38 tokens/sec
DeepSeek R1 via Azure Pro
28 tokens/sec
2000 character limit reached

The cohomology of the connective spectra for {K}-theory revisited (2401.06615v2)

Published 12 Jan 2024 in math.KT and math.AT

Abstract: The stable mod 2 cohomologies of the spectra for connective real and complex K-theories are well known and easy to work with. However, the known bases are in terms of the anti-automorphism of Milnor basis elements. We offer simple bases in terms of admissible sequences of Steenrod operations that come from the Adem relations. In particular, the basis for the complex case is that you don't use any Steenrod operations in degree one or $2n+1$, $n > 0$.

Definition Search Book Streamline Icon: https://streamlinehq.com
References (7)
  1. The structure of the spin cobordism ring. Annals of Mathematics, 86:271–298, 1967.
  2. J. W. Milnor. The Steenrod algebra and its dual. Annals of Mathematics, 67:150–171, 1958.
  3. Dena S. Cowen Morton. The Hopf ring for b⁢o𝑏𝑜boitalic_b italic_o and its connective covers. Journal of Pure and Applied Algebra, 210:219–247, 2007.
  4. Characteristic Classes, volume 76 of Annals of Mathematics Studies. Princeton University Press, Princeton, 1974.
  5. R.E. Stong. Determination of H*⁢(B⁢O⁢(k,⋯,∞),Z/(2))superscript𝐻𝐵𝑂𝑘⋯𝑍2{H}^{*}({BO}(k,\cdots,\infty),{Z}/(2))italic_H start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT ( italic_B italic_O ( italic_k , ⋯ , ∞ ) , italic_Z / ( 2 ) ) and H*⁢(B⁢U⁢(k,⋯,∞),Z/(2))superscript𝐻𝐵𝑈𝑘⋯𝑍2{H}^{*}({BU}(k,\cdots,\infty),{Z}/(2))italic_H start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT ( italic_B italic_U ( italic_k , ⋯ , ∞ ) , italic_Z / ( 2 ) ). Transactions of the American Mathematical Society, 107:526–544, 1963.
  6. R. Thom. Quelques propriétés globales des variétés differentiables. Commentarii Mathematici Helvetici, 28:17–86, 1954.
  7. E. Thomas. On the cohomology groups of the classifying space for the stable spinor group. Bol. Soc. Mat. Mex., pages 47–69, 1962.

Summary

We haven't generated a summary for this paper yet.

X Twitter Logo Streamline Icon: https://streamlinehq.com