On the algebraic cobordism spectra $\mathbf {MSL}$ and $\mathbf {MSp}$
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- by I. Panin and C. Walter
- St. Petersburg Math. J. 34 (2023), 109-141
- DOI: https://doi.org/10.1090/spmj/1748
- Published electronically: December 16, 2022
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Abstract:
The algebraic cobordism spectra $\mathbf {MSL}$ and $\mathbf {MSp}$ are constructed. They are commutative monoids in the category of symmetric $T^{\wedge 2}$-spectra. The spectrum $\mathbf {MSp}$ comes with a natural symplectic orientation given either by a tautological Thom class $th^{\mathbf {MSp}} \in \mathbf {MSp}^{4,2}(\mathbf {MSp}_2)$, or a tautological Borel class $b_{1}^{\mathbf {MSp}} \in \mathbf {MSp}^{4,2}(HP^{\infty })$, or any of six other equivalent structures. For a commutative monoid $E$ in the category ${SH}(S)$, it is proved that the assignment $\varphi \mapsto \varphi (th^{\mathbf {MSp}})$ identifies the set of homomorphisms of monoids $\varphi \colon \mathbf {MSp}\to E$ in the motivic stable homotopy category $SH(S)$ with the set of tautological Thom elements of symplectic orientations of $E$. A weaker universality result is obtained for $\mathbf {MSL}$ and special linear orientations. The universality of $\mathbf {MSp}$ has been used by the authors to prove a Conner–Floyed type theorem. The weak universality of $\mathbf {MSL}$ has been used by A. Ananyevskiy to prove another version of the Conner–Floyed type theorem.References
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Bibliographic Information
- I. Panin
- Affiliation: St. Petersburg Department of Steklov Institute of Mathematics, St. Petersburg, Russia
- MR Author ID: 238161
- Email: paniniv@gmail.com
- C. Walter
- Affiliation: Laboratoire J.-A. Dieudonné (UMR 6621 du CNRS), Département de mathématiques, Université de Nice – Sophia Antipolis, 06108 Nice Cedex 02, France
- Email: walter@math.unice.fr
- Received by editor(s): November 26, 2021
- Published electronically: December 16, 2022
- Additional Notes: The results of §§2,6,7,9,11,13 are obtained with the support of the Russian Science Foundation grant no. 19-71-30002. The results of §§3,4,5,8,10,12 are obtained due to support provided by Laboratoire J.-A. Dieudonne, UMR 6621 du CNRS, Universite de Nice Sophia Antipolis
- © Copyright 2022 American Mathematical Society
- Journal: St. Petersburg Math. J. 34 (2023), 109-141
- MSC (2020): Primary 14F42
- DOI: https://doi.org/10.1090/spmj/1748