Zobrazeno 1 - 10
of 1 260
pro vyhledávání: '"Poisson manifold"'
Autor:
Elena Martinengo
Publikováno v:
Rendiconti di Matematica e delle Sue Applicazioni, Vol 40, Pp 81-95 (2019)
We study equivariant bi-vector fields on a toric variety. We prove that, on a smooth toric variety of dimension n, the locus where the rank of an equivariant bi-vector field is ≤ 2k is not empty and has at least a component of dimension ≥ 2k + 1,
Externí odkaz:
https://doaj.org/article/ea3fd2313ad44fddbead8954b1905bf8
Publikováno v:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 2018 Oct . 376(2131), 1-40.
Externí odkaz:
https://www.jstor.org/stable/26601815
Publikováno v:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 2018 Oct . 376(2131), 1-6.
Externí odkaz:
https://www.jstor.org/stable/26601812
Publikováno v:
Universe, Vol 8, Iss 4, p 247 (2022)
We show that a Minkowski phase space endowed with a bracket relatively to a conformable differential realizes a Poisson algebra, confering a bi-Hamiltonian structure to the resulting manifold. We infer that the related Hamiltonian vector field is an
Externí odkaz:
https://doaj.org/article/89435787cef94d00b2280281cdea7e72
Publikováno v:
Symmetry, Vol 13, Iss 8, p 1455 (2021)
We present a new look at the classification of real low-dimensional Lie algebras based on the notion of a linear bundle of Lie algebras. Belonging to a suitable family of Lie bundles entails the compatibility of the Lie–Poisson structures with the
Externí odkaz:
https://doaj.org/article/b914101760924d949f3526a44534e596
Autor:
Hanna Sim, Sei-Qwon Oh
Publikováno v:
Archiv der Mathematik. 118:133-142
Let A be a Poisson algebra over a field $$\mathbf{k}$$ with characteristic zero, let $$\gamma $$ , $$\alpha $$ be Poisson derivations on A such that $$\gamma \alpha =\alpha \gamma $$ and $$0\ne \rho \in \mathbf{k}$$ . Here the notion of a $$\gamma $$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c53d946a174f3000beb2b4cad3be52d
https://doi.org/10.1007/s00013-021-01673-2
https://doi.org/10.1007/s00013-021-01673-2
Autor:
Alexander Karabegov
Publikováno v:
Asymptotic Analysis. 126:45-63
We introduce the notion of an oscillatory formal distribution supported at a point. We prove that a formal distribution is given by a formal oscillatory integral if and only if it is an oscillatory distribution that has a certain nondegeneracy proper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::286222d000e9c9f55927dfaf959be42b
https://doi.org/10.3233/asy-201662
https://doi.org/10.3233/asy-201662
Autor:
Pym, Brent, author, Schedler, Travis, author
Publikováno v:
Geometry and Physics: Volume II : A Festschrift in honour of Nigel Hitchin, 2018.
Externí odkaz:
http://www.oxfordscholarship.com/view/10.1093/oso/9780198802020.001.0001/oso-9780198802020-chapter-28
Autor:
Cecilia Pagliantini, Jan S. Hesthaven
Publikováno v:
Mathematics of Computation, 90(330), 1701-1740. American Mathematical Society
We develop structure-preserving reduced basis methods for a large class of nondissipative problems by resorting to their formulation as Hamiltonian dynamical systems. With this perspective, the phase space is naturally endowed with a Poisson manifold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db6a1859fcfbdcc6a0683223a2330ac3
https://doi.org/10.1090/mcom/3618
https://doi.org/10.1090/mcom/3618
Autor:
I. Yu. Zhdanovskiy, A. S. Kocherova
Publikováno v:
Proceedings of the Steklov Institute of Mathematics. 313:99-112
We study positive operator-valued measures by algebraic and geometric methods. We prove that positive operator-valued measures are parametrized by a Poisson manifold. Also, we show how to obtain symplectic leaves of this Poisson manifold in terms of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52c0b1cfbc15c1fd9c58868884c975b2
https://doi.org/10.1134/s0081543821020103
https://doi.org/10.1134/s0081543821020103