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Wyszukujesz frazę "lie" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Differential Batalin-Vilkovisky algebras arising from twilled Lie-Rinehart algebras
Autorzy:
Huebschmann, Johannes
Powiązania:
https://bibliotekanauki.pl/articles/1207674.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
differential graded Lie algebra
twilled Lie-Rinehart algebra
Lie-Rinehart algebra
Batalin-Vilkovisky algebra
Gerstenhaber algebra
mirror conjecture
Calabi-Yau manifold
Lie bialgebra
Opis:
Twilled L(ie-)R(inehart)-algebras generalize, in the Lie-Rinehart context, complex structures on smooth manifolds. An almost complex manifold determines an "almost twilled pre-LR algebra", which is a true twilled LR-algebra iff the almost complex structure is integrable. We characterize twilled LR structures in terms of certain associated differential (bi)graded Lie and G(erstenhaber)-algebras; in particular the G-algebra arising from an almost complex structure is a (strict) d(ifferential) G-algebra iff the almost complex structure is integrable. Such G-algebras, endowed with a generator turning them into a B(atalin-)V(ilkovisky)-algebra, occur on the B-side of the mirror conjecture. We generalize a result of Koszul to those dG-algebras which arise from twilled LR-algebras. A special case thereof explains the relationship between holomorphic volume forms and exact generators for the corresponding dG-algebra and thus yields in particular a conceptual proof of the Tian-Todorov lemma. We give a differential homological algebra interpretation for twilled LR-algebras and by means of it we elucidate the notion of a generator in terms of homological duality for differential graded LR-algebras.
Źródło:
Banach Center Publications; 2000, 51, 1; 87-102
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Left-covariant differential calculi on $SL_{q}(N)$
Autorzy:
Schmüdgen, Konrad
Schüler, Axel
Powiązania:
https://bibliotekanauki.pl/articles/1342724.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
quantum Lie algebra
noncommutative differential calculus
Opis:
We study $N^{2} - 1$ dimensional left-covariant differential calculi on the quantum group $SL_q(N)$. In this way we obtain four classes of differential calculi which are algebraically much simpler as the bicovariant calculi. The algebra generated by the left-invariant vector fields has only quadratic-linear relations and posesses a Poincaré-Birkhoff-Witt basis. We use the concept of universal (higher order) differential calculus associated with a given left-covariant first order differential calculus. It turns out that the space of left-invariant k-forms has the dimension $N^{2} - 1\choose k$ as in the case of the corresponding classical Lie group SL(N).
Źródło:
Banach Center Publications; 1997, 40, 1; 185-191
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Connections in regular Poisson manifolds over ℝ-Lie foliations
Autorzy:
Kubarski, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1207678.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Lie algebroid
ℝ-Lie foliation
Poisson manifold
closed transversal
flat connection with singularites along closed transversals
Opis:
The subject of this paper is the notion of the connection in a regular Poisson manifold M, defined as a splitting of the Atiyah sequence of its Lie algebroid. In the case when the characteristic foliation F is an ℝ-Lie foliation, the fibre integral operator along the adjoint bundle is used to define the Euler class of the Poisson manifold M. When M is oriented 3-dimensional, the notion of the index of a local flat connection with singularities along a closed transversal is defined. If, additionally, F has compact leaves (then F is a fibration over $S^{1}$), an analogue of the Euler-Poincaré-Hopf index theorem for flat connections with singularities along closed transversals is obtained.
Źródło:
Banach Center Publications; 2000, 51, 1; 141-149
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controllability of right invariant systems on semi-simple Lie groups
Autorzy:
El Assoudi, R.
Gauthier, J.
Kupka, I.
Powiązania:
https://bibliotekanauki.pl/articles/1359667.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
invariant vector fields
controllability
root systems
semi-simple Lie algebras
Opis:
We deal with controllability of right invariant control systems on semi-simple Lie groups. We recall the history of the problem and the successive results. We state the final complete result, with a sketch of proof.
Źródło:
Banach Center Publications; 1995, 32, 1; 199-208
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Lie algebras in braided categories
Autorzy:
Pareigis, Bodo
Powiązania:
https://bibliotekanauki.pl/articles/1342720.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
braided category
universal enveloping algebra
braided Hopf algebra
graded Lie algebra
Opis:
The category of group-graded modules over an abelian group $G$ is a monoidal category. For any bicharacter of $G$ this category becomes a braided monoidal category. We define the notion of a Lie algebra in this category generalizing the concepts of Lie super and Lie color algebras. Our Lie algebras have $n$-ary multiplications between various graded components. They possess universal enveloping algebras that are Hopf algebras in the given category. Their biproducts with the group ring are noncommutative noncocommutative Hopf algebras some of them known in the literature. Conversely the primitive elements of a Hopf algebra in the category form a Lie algebra in the above sense.
Źródło:
Banach Center Publications; 1997, 40, 1; 139-158
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A differential geometric setting for dynamic equivalence and dynamic linearization
Autorzy:
Pomet, Jean-Baptiste
Powiązania:
https://bibliotekanauki.pl/articles/1359678.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
flat systems
infinite jet bundles
Dynamic feedback equivalence
dynamic feedback linearization
Lie-Bäcklund transformations
contact transformations
Opis:
This paper presents an (infinite-dimensional) geometric framework for control systems, based on infinite jet bundles, where a system is represented by a single vector field and dynamic equivalence (to be precise: equivalence by endogenous dynamic feedback) is conjugation by diffeomorphisms. These diffeomorphisms are very much related to Lie-Bäcklund transformations. It is proved in this framework that dynamic equivalence of single-input systems is the same as static equivalence.
Źródło:
Banach Center Publications; 1995, 32, 1; 319-339
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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