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A Hamiltonian $\coprod\limits_n BO(n)$-action, stratified Morse theory and the $J$-homomorphism

Symplectic Geometry · Submitted 18 Feb 2019

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim This provides a key step in the following work [Jin] on the proof of a claim in [JiTr]: the classifying map of the local system of brane structures on an (immersed) exact Lagrangian submanifold $L\subset T^*\mathbf{R}^N$ is given by the composition of the stable Gauss map $L\rightarrow U/O$ and the delooping of the $J$-homomorphism $U/O\rightarrow B\mathrm{Pic}(\mathbf{S})$.

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arXiv ID1902.06708 (version 8)
Pith IDDTD7Q5FT, Pith's permanent record of this paper and its review
CitationXin Jin. "A Hamiltonian $\coprod\limits_n BO(n)$-action, stratified Morse theory and the $J$-homomorphism." arXiv:1902.06708 (2019). https://pith.science/paper/DTD7Q5FT
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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,093 input tokens.

What the abstract itself states, as probabilities: claims first 0.06 · states limitation 0.08 · human participants 0.01 · controlled comparison 0.01 · randomized assignment 0.01 · states quantitative result 0.03 · compares with prior results 0.42 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v8. Results and the main claim are underlined; .

We use sheaves of spectra to quantize a Hamiltonian $\coprod\limits_n BO(n)$-action on $\varinjlim\limits_{N}T^*\mathbf{R}^N$ that naturally arises from Bott periodicity. We employ the category of correspondences developed in [GaRo] to give an enrichment of stratified Morse theory by the $J$-homomorphism. This provides a key step in the following work [Jin] on the proof of a claim in [JiTr]: the classifying map of the local system of brane structures on an (immersed) exact Lagrangian submanifold $L\subset T^*\mathbf{R}^N$ is given by the composition of the stable Gauss map $L\rightarrow U/O$ and the delooping of the $J$-homomorphism $U/O\rightarrow B\mathrm{Pic}(\mathbf{S})$. We put special emphasis on the functoriality and (symmetric) monoidal structures of the categories involved, and as a byproduct, we produce several concrete constructions of (commutative) algebra/module objects and (right-lax) morphisms between them in the (symmetric) monoidal $(\infty, 2)$-category of correspondences, generalizing the construction out of Segal objects in [GaRo], which might be of interest by its own.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 We use sheaves of spectra to quantize a Hamiltonian $\coprod\limits_n BO(n)$-action on $\varinjlim\limits_{N}T^*\mathbf{R}^N$ that naturally arises from Bott periodicity. contribution 0.83 0.94 0.13 asserted 1.00
s1 We employ the category of correspondences developed in [GaRo] to give an enrichment of stratified Morse theory by the $J$-homomorphism. method 0.58 0.91 0.10 asserted 1.00
s2 This provides a key step in the following work [Jin] on the proof of a claim in [JiTr]: the classifying map of the local system of brane structures on an (immersed) exact Lagrangian submanifold $L\subset T^*\mathbf{R}^N$ is given by the composition of the stable Gauss map $L\rightarrow U/O$ and the delooping of the $J$-homomorphism $U/O\rightarrow B\mathrm{Pic}(\mathbf{S})$. interpretation 0.47 0.27 0.64 asserted 1.00
s3 We put special emphasis on the functoriality and (symmetric) monoidal structures of the categories involved, and as a byproduct, we produce several concrete constructions of (commutative) algebra/module objects and (right-lax) morphisms between them in the (symmetric) monoidal $(\infty, 2)$-category of correspondences, generalizing the construction out of Segal objects in [GaRo], which might be of interest by its own. contribution 0.92 0.94 0.06 asserted 0.82

What kind of paper the classifier reports this is: theoretical result 0.81 · evidence from proof or derivation 0.99.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

We use sheaves of spectra to quantize a Hamiltonian $\coprod\limits_n BO(n)$-action on $\varinjlim\limits_{N}T^*\mathbf{R}^N$ that naturally arises from Bott periodicity. We employ the category of correspondences developed in [GaRo] to give an enrichment of stratified Morse theory by the $J$-homomorphism. This provides a key step in the following work [Jin] on the proof of a claim in [JiTr]: the classifying map of the local system of brane structures on an (immersed) exact Lagrangian submanifold $L\subset T^*\mathbf{R}^N$ is given by the composition of the stable Gauss map $L\rightarrow U/O$ and the delooping of the $J$-homomorphism $U/O\rightarrow B\mathrm{Pic}(\mathbf{S})$. We put special emphasis on the functoriality and (symmetric) monoidal structures of the categories involved, and as a byproduct, we produce several concrete constructions of (commutative) algebra/module objects and (right-lax) morphisms between them in the (symmetric) monoidal $(\infty, 2)$-category of correspondences, generalizing the construction out of Segal objects in [GaRo], which might be of interest by its own.

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3 arXiv papers cite this in 30 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 20 sentences without a confident label

Builds on it 1 paper
  • This is an upgraded version of the results that we have obtained in [ref] about constructions of (commutative) algebra and their modules in $()$, and it is frequently (sometimes implicitly) used in the arguments throughout Section [ref].

    Microlocal sheaf categories and the $J$-homomorphism · Organization · 0.97

Uses its method or tool 1 paper
Cites it as background 2 papers

What it cites · 15 sentences without a confident label

Builds on 1 paper
  • Our construction of a 2-coCartesian fibration for $()$ is a slight modification of it in the $(∞,2)$-setting.] $()^⊗, Δ^op→N(Δ)^op$ (resp. $()^⊗, _*→N(_*)$) for the (symmetric) monoidal structure on $()$ inherited from a (symmetric) monoidal structure $^⊗$ as follows (See [ref] for a similar construction in the $(∞,1)$-categorical setting).

    Enhanced six operations and base change theorem for higher Artin stacks · (Symmetric) monoidal structure on $()$ · 0.89

Uses the method or tool of 1 paper
  • The standard way to do this is to find a sheaf over prescribed coefficient with singular support in a conic Lagrangian lifting of the graph of the Hamiltonian action, called sheaf quantization (cf. [ref] , [ref] ).

    Microlocal Category · Quantization of the Hamiltonian $∐_n BO(n)$-action and a natural “module" · 0.85

Cites as background 1 paper
  • Here we take the coefficient to be the universal one, the sphere spectrum $$, so sheaves are taking values in the stable $∞$-category of spectra $$ (see [ref] for basic properties of microlocal sheaves of spectra).

    Brane structures in microlocal sheaf theory · Quantization of the Hamiltonian $∐_n BO(n)$-action and a natural “module" · 0.83

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