Results 1 to 10 of about 1,005 (125)

Locally conformally Kähler solvmanifolds: a survey [PDF]

open access: goldComplex Manifolds, 2019
A Hermitian structure on a manifold is called locally conformally Kähler (LCK) if it locally admits a conformal change which is Kähler. In this survey we review recent results of invariant LCK structures on solvmanifolds and present original results ...
Andrada A., Origlia M.
doaj   +6 more sources

On LCK solvmanifolds with a property of Vaisman solvmanifolds

open access: yesComplex Manifolds, 2022
The purpose in this paper is to determine a locally conformal Kähler solvmanifold such that the nilradical of the solvable Lie group is constructed by a Heisenberg Lie group.
Sawai Hiroshi
doaj   +2 more sources

New supersymmetric vacua on solvmanifolds [PDF]

open access: diamond, 2016
We obtain new supersymmetric flux vacua of type II supergravities on four-dimensional Minkowski times six-dimensional solvmanifolds. The orientifold O4, O5, O6, O7, or O8-planes and D-branes are localized. All vacua are in addition not T-dual to a vacuum
David Andriot, David Andriot
openalex   +5 more sources

Vaisman metrics on solvmanifolds and Oeljeklaus-Toma manifolds [PDF]

open access: green, 2012
We prove the non-existence of Vaisman metrics on some solvmanifolds with left-invariant complex structures. By this theorem, we show that Oeljeklaus-Toma manifolds does not admit Vaisman metrics.Comment: 12 page.
Hisashi Kasuya
openalex   +3 more sources

Example of a six-dimensional LCK solvmanifold

open access: yesComplex Manifolds, 2017
The purpose of this paper is to prove that there exists a lattice on a certain solvable Lie group and construct a six-dimensional locally conformal Kähler solvmanifold with non-parallel Lee form.
Sawai Hiroshi
doaj   +1 more source

Invariant solutions to the Strominger system and the heterotic equations of motion [PDF]

open access: yes, 2017
We construct many new invariant solutions to the Strominger system with respect to a 2-parameter family of metric connections $\nabla^{\varepsilon,\rho}$ in the anomaly cancellation equation.
Otal, A., Ugarte, L., Villacampa, R.
core   +4 more sources

An extention of Nomizu’s Theorem –A user’s guide–

open access: yesComplex Manifolds, 2016
For a simply connected solvable Lie group G with a lattice Γ, the author constructed an explicit finite-dimensional differential graded algebra A*Γ which computes the complex valued de Rham cohomology H*(Γ\G, C) of the solvmanifold Γ\G.
Kasuya Hisashi
doaj   +1 more source

Examples of solvmanifolds without LCK structures

open access: yesComplex Manifolds, 2018
The purpose in this paper is to construct solvmanifolds without LCK structures such that the complex structure is left ...
Sawai Hiroshi
doaj   +1 more source

Non-formal co-symplectic manifolds [PDF]

open access: yes, 2014
We study the formality of the mapping torus of an orientation-preserving diffeomorphism of a manifold. In particular, we give conditions under which a mapping torus has a non-zero Massey product.
Bazzoni, Giovanni   +2 more
core   +2 more sources

Ricci Nilsoliton Black Holes [PDF]

open access: yes, 2008
We follow a constructive approach and find higher-dimensional black holes with Ricci nilsoliton horizons. The spacetimes are solutions to Einstein's equation with a negative cosmological constant and generalises therefore, anti-de Sitter black hole ...
Aebischer   +35 more
core   +5 more sources

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