Results 31 to 40 of about 2,097,491 (204)

Contigious hyperquadrics of coequipped hyperbands

Дифференциальная геометрия многообразий фигур, 2019
We consider hyperquadrics that are internally connected to coe­quipped hyperbands in the projective space. Specifically, a hyperquadric tangent to a hyperplane at the point is called a contiguous hyper­quadric of a hyperband if it has a second-order ...
Yu. Popov
doaj   +1 more source

Hyperband distribution equipped with a field of conjugate planes

Дифференциальная геометрия многообразий фигур, 2023
In this paper, we study a special class of hyperbands, i. e., a framed hyperband distribution. The study of hyperbands and their generalizations in spaces with different fundamental groups is of great interest in connec­tion with numerous applications in
N. A. Eliseeva, Yu. I. Popov
doaj   +1 more source

Relativistic fluids, hydrodynamic frames and their Galilean versus Carrollian avatars

Journal of High Energy Physics, 2022
We comprehensively study Galilean and Carrollian hydrodynamics on arbitrary backgrounds, in the presence of a matter/charge conserved current. For this purpose, we follow two distinct and complementary paths. The first is based on local invariance, be it
Anastasios C. Petkou, P. Marios Petropoulos, David Rivera-Betancour, Konstantinos Siampos   +3 more
doaj   +1 more source

Reheating in geometric Weyl-invariant Einstein-Cartan gravity [PDF]

Physical Review D
We study Weyl-invariant purely gravitational theories formulated within the Einstein-Cartan framework. In the Einstein-frame description, these models are dynamically equivalent to standard general relativity coupled to an axion-like pseudoscalar degree ...
I. Gialamas
semanticscholar   +1 more source

Generalized parallelizable spaces from exceptional field theory

Journal of High Energy Physics, 2018
Generalized parallelizable spaces allow a unified treatment of consistent maximally supersymmetric truncations of ten- and eleven-dimensional supergravity in generalized geometry. Known examples are spheres, twisted tori and hyperboloides.
Pascal du Bosque, Falk Hassler, Dieter Lüst   +2 more
doaj   +1 more source

Values of the Pukánszky invariant in McDuff factors [PDF]

, 2008
In 1960 Pukánszky introduced an invariant associating to every masa in a separable II₁ factor a non-empty subset of the N ∪ {∞}. This invariant examines the multiplicity structure of the von Neumann algebra generated by
White, S.A., Stuart White
core   +1 more source

A Cartan–Hartogs version of the polydisk theorem [PDF]

, 2022
We extend the Polydisk Theorem for symmetric bounded domains to Cartan–Hartogs domains, and apply it to prove that a Cartan–Hartogs domain inherits totally geodesic submanifolds from the bounded symmetric domain which is based on, and to give a ...
Mossa R., Mossa Roberto, Zedda M., Zedda Michela   +3 more
core   +3 more sources

Nonrelativistic transport from frame-indifferent kinetic theory [PDF]

Physical Review D
This paper explores the application of Newton-Cartan geometry to the kinetic theory of gases that includes nonrelativistic gravitational effects and the principle of general covariance.
Paweł Matus, R. Biswas, Piotr Sur'owka, Francisco Pena-Ben'itez   +3 more
semanticscholar   +1 more source

bk$b^k$‐Algebroids and the variety of foliation jets

Journal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract We introduce and classify singular foliations of bk+1$b^{k+1}$‐type, which formalize the properties of vector fields that are tangent to a submanifold W⊂M$W \subset M$ to order k$k$. When W$W$ is a hypersurface, these structures are Lie algebroids generalizing the bk+1$b^{k+1}$‐tangent bundles introduced by Scott.
Francis Bischoff, Álvaro del Pino, Aldo Witte   +2 more
wiley   +1 more source

Nonholonomic systems via moving frames: Cartan equivalence and Chaplygin Hamiltonization [PDF]

, 2007
Dedicated to Alan Weinstein on his 60th birthday, 39 ...
Ehlers, Kurt M., Koiller, Jair, Montgomery, Richard, Rios, Pedro M.   +3 more
openaire   +3 more sources