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2020
As a contact structure can be equivalently viewed as a filtered manifold whose symbol algebra is isomorphic to the Heisenberg algebra in each point, there is a natural frame bundle associated to a contact structure, and a Lagrangean contact structure can be viewed as a reduction of such a frame bundle.
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As a contact structure can be equivalently viewed as a filtered manifold whose symbol algebra is isomorphic to the Heisenberg algebra in each point, there is a natural frame bundle associated to a contact structure, and a Lagrangean contact structure can be viewed as a reduction of such a frame bundle.
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Journal of Ambient Intelligence and Humanized Computing, 2018
The explosive growth of Web and social networks has revealed the need to (re-)analyze the connection structure of the underlying graphs. Kleinberg et al. in 1999 has defined Web-Graph as the graph induced by the (directed) hyperlinks between the (static) Web pages.
Postiglione, Alberto +1 more
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The explosive growth of Web and social networks has revealed the need to (re-)analyze the connection structure of the underlying graphs. Kleinberg et al. in 1999 has defined Web-Graph as the graph induced by the (directed) hyperlinks between the (static) Web pages.
Postiglione, Alberto +1 more
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Contact Structures and Distributions
1995The most important source of the theory of generalized functions has been problems that arise in the theory of hyperbolic differential equations (including analytic questions of field theory). In particular the generalized functions that we call Hadamard kernels (Chapt.
V. P. Havin, N. K. Nikol’skij
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Symplectic and Contact Structures
1994Although the role played by symplectic geometry in the theory of differential equations is well known (sec, e.g., L. Hormander [60], V. Guillemin and S. Sternberg [38], V. E. Nazaikinskii, B. Yu. Sternin and V. E. Shatalov [144]), we start our exposition with a simple example showing how the main notions of symplectic geometry arise when one studies ...
Boris Sternin, Victor Shatalov
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Optimizing contact tracing: Leveraging contact network structure
2023Guillermo de Anda-Jáuregui +1 more
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QUATERNIONIC CONTACT STRUCTURES
Quaternionic Structures in Mathematics and Physics, 2001openaire +1 more source