Letteratura scientifica selezionata sul tema "DG-Manifolds"

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Articoli di riviste sul tema "DG-Manifolds":

1

Cheng, Jiahao, Zhuo Chen e Dadi Ni. "Hopf algebras arising from dg manifolds". Journal of Algebra 584 (ottobre 2021): 19–68. http://dx.doi.org/10.1016/j.jalgebra.2021.05.004.

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2

Ciocan-Fontanine, Ionuţ, e Mikhail Kapranov. "Virtual fundamental classes via dg–manifolds". Geometry & Topology 13, n. 3 (16 marzo 2009): 1779–804. http://dx.doi.org/10.2140/gt.2009.13.1779.

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3

Stiénon, Mathieu, e Ping Xu. "Fedosov dg manifolds associated with Lie pairs". Mathematische Annalen 378, n. 1-2 (26 luglio 2020): 729–62. http://dx.doi.org/10.1007/s00208-020-02012-6.

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4

Laurent-Gengoux, Camille, Mathieu Stiénon e Ping Xu. "Poincaré–Birkhoff–Witt isomorphisms and Kapranov dg-manifolds". Advances in Mathematics 387 (agosto 2021): 107792. http://dx.doi.org/10.1016/j.aim.2021.107792.

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5

Seol, Seokbong, Mathieu Stiénon e Ping Xu. "Dg Manifolds, Formal Exponential Maps and Homotopy Lie Algebras". Communications in Mathematical Physics 391, n. 1 (24 febbraio 2022): 33–76. http://dx.doi.org/10.1007/s00220-021-04265-x.

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6

Uribe, Bernardo. "Group Actions on DG-Manifolds and Exact Courant Algebroids". Communications in Mathematical Physics 318, n. 1 (23 gennaio 2013): 35–67. http://dx.doi.org/10.1007/s00220-013-1669-2.

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7

Bernardara, Marcello, Matilde Marcolli e Gonçalo Tabuada. "Some remarks concerning Voevodsky’s nilpotence conjecture". Journal für die reine und angewandte Mathematik (Crelles Journal) 2018, n. 738 (1 maggio 2018): 299–312. http://dx.doi.org/10.1515/crelle-2015-0068.

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Abstract (sommario):
Abstract In this article we extend Voevodsky’s nilpotence conjecture from smooth projective schemes to the broader setting of smooth proper dg categories. Making use of this noncommutative generalization, we then address Voevodsky’s original conjecture in the following cases: quadric fibrations, intersection of quadrics, linear sections of Grassmannians, linear sections of determinantal varieties, homological projective duals, and Moishezon manifolds.
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Lupercio, Ernesto, Camilo Rengifo e Bernardo Uribe. "T-duality and exceptional generalized geometry through symmetries of dg-manifolds". Journal of Geometry and Physics 83 (settembre 2014): 82–98. http://dx.doi.org/10.1016/j.geomphys.2014.05.012.

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9

GRIBACHEVA, DOBRINKA. "A NATURAL CONNECTION ON A BASIC CLASS OF RIEMANNIAN PRODUCT MANIFOLDS". International Journal of Geometric Methods in Modern Physics 09, n. 07 (7 settembre 2012): 1250057. http://dx.doi.org/10.1142/s0219887812500570.

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Abstract (sommario):
A Riemannian manifold M with an integrable almost product structure P is called a Riemannian product manifold. Our investigations are on the manifolds (M, P, g) of the largest class of Riemannian product manifolds, which is closed with respect to the group of conformal transformations of the metric g. This class is an analogue of the class of locally conformal Kähler manifolds in almost Hermitian geometry. In the present paper we study a natural connection D on (M, P, g) (i.e. DP = Dg = 0). We find necessary and sufficient conditions, the curvature tensor of D to have properties similar to the Kähler tensor in Hermitian geometry. We pay attention to the case when D has a parallel torsion. We establish that the Weyl tensors for the connection D and the Levi-Civita connection coincide as well as the invariance of the curvature tensor of D with respect to the usual conformal transformation. We consider the case when D is a flat connection. We construct an example of the considered manifold by a Lie group where D is a flat connection with non-parallel torsion.
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Pridham, J. P. "Representability of derived stacks". Journal of K-Theory 10, n. 2 (31 gennaio 2012): 413–53. http://dx.doi.org/10.1017/is012001005jkt179.

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Abstract (sommario):
AbstractLurie's representability theorem gives necessary and sufficient conditions for a functor to be an almost finitely presented derived geometric stack. We establish several variants of Lurie's theorem, making the hypotheses easier to verify for many applications. Provided a derived analogue of Schlessinger's condition holds, the theorem reduces to verifying conditions on the underived part and on cohomology groups. Another simplification is that functors need only be defined on nilpotent extensions of discrete rings. Finally, there is a pre-representability theorem, which can be applied to associate explicit geometric stacks to dg-manifolds and related objects.

Tesi sul tema "DG-Manifolds":

1

Louis, Ruben. "Les algèbres supérieures universelles des espaces singuliers et leurs symétries". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0165.

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Cette thèse se décompose en deux parties principales.1) Nous montrons qu'il existe une équivalence de catégories entre les algèbres de Lie-Rinehart sur une algèbre commutative O et classes d'équivalence d'homotopie d'algébroïdes de Lie infinie acycliquesgraduées négativement. Par conséquent, ce résultat donne un sens à l'algébroïdes de Lie infinie universel d'un feuilletage singulier, sans hypothèse supplémentaire, et pour les algébroïdes de Lie singuliers d'Androulidakis-Zambon. Ceci étend à un cadre purement algébrique la construction de la Q-variété universelle d'un feuilletage singulier localement réel analytique. Aussi, à tout idéal I de O préservé par l'application d'ancre d'une algèbre de Lie-Rinehart A, on associe une classe d'équivalence d'homotopie d'algébroïdes de Lie infinie négativement graduées sur des complexes calculant Tor_O(A,O/I). Plusieurs exemples explicites sont donnés.2) La deuxième partie est consacrée à quelques applications des résultats sur les algèbres de Lie-Rinehart.a. On associe à toute variété affine un algébroïde de Lie infinie universel de l'algèbre de Lie-Rinehart de ses champs de vecteurs. Nous étudions l'effet de certaines opérations courantes sur des variétés affines telles que les éclatements, germes en un point, etc.b. Nous donnons une interprétation de l'éclatement d'un feuilletage singulier F au sens d'Omar Mohsen en terme de l'algébroïde de Lie infinie universel de F.c. Nous introduisons la notion de champs de vecteurs longitudinaux sur une variété graduée sur un feuilletage, et étudier leur cohomologie. Nous prouvons que les groupes de cohomologie de ce dernier sont nuls.d. Nous étudions les symétries de feuilletages singuliers à travers des algébroïdes de Lie infinie universels. Plus précisément, nous prouvons qu'une action par symétrie faible d'une algèbre de Lie g sur un feuilletage singulier F (qui est moralement une action de g sur l'espace des feuilles M/F) induit un unique morphisme de Lie infini à homotopie près de g vers l'algèbre de Lie différentielle graduée (DGLA) des champs de vecteurs sur un algébroïde de Lie infinie universel de F. On déduit de ce résultat général plusieursconséquences. Par exemple, nous donnons un exemple d'action d'algèbre de Lie sur un sous-varieté affine qui ne peut s'étendre sur l'espace ambiant. Enfin, nous présentons la notion de tour de bi-submersions sur un feuilletage singulier et des symétries àcelles-ci
This thesis breaks into two main parts.1) We show that there is an equivalence of categories between Lie-Rinehart algebras over a commutative algebra O and homotopy equivalence classes of negatively graded acyclic Lie infinity-algebroids. Therefore, this result makes sense of the universal Lie infinity-algebroid of every singular foliation,without any additional assumption, and for Androulidakis-Zambon singular Lie algebroids. This extends to a purely algebraic setting the construction of the universal Q-manifold of a locally real analytic singular foliation. Also, to any ideal I of O preserved by the anchor map of a Lie-Rinehart algebra A, we associate a homotopy equivalence class of negatively graded Lie infinity-algebroids over complexes computing Tor_O(A,O/I). Several explicit examples are given.2) The second part is dedicated to some applications of the results on Lie-Rinehart algebras.a. We associate to any affine variety a universal Lie infinity-algebroid of the Lie-Rinehart algebra of its vector fields. We study the effect of some common operations on affine varieties such as blow-ups, germs at a point, etc.b. We give an interpretation of the blow-up of a singular foliation F in the sense of Omar Mohsen in term of the universal Lie infinity-algebroid of F.c. We introduce the notion of longitudinal vector fields on a graded manifold over a singular foliation, and study their cohomology. We prove that the cohomology groups of the latter vanish.d. We study symmetries of singular foliations through universal Lie infinity-algebroids. More precisely, we prove that a weak symmetry action of a Lie algebra g on a singular foliation F (which is morally an action of g on the leaf space M/F) induces a unique up to homotopy Lie infinity-morphism from g to the Differential Graded Lie Algebra (DGLA) of vector fields on a universal Lie infinity-algebroid of F. We deduce from this general result several geometrical consequences. For instance, we give an example of a Lie algebra action on an affine sub-variety which cannot be extended on the ambient space. Last, we present the notion of tower of bi-submersions over a singular foliation and lift symmetries to those

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