Results 1 to 10 of about 1,696 (39)

On the Real Homotopy Type of Generalized Complex Nilmanifolds [PDF]

open access: yesMathematics, 2020
We prove that for any n≥4, there are infinitely many real homotopy types of 2n-dimensional nilmanifolds admitting generalized complex structures of every type k, for 0≤k≤n.
Adela Latorre   +2 more
doaj   +4 more sources

Locally conformal symplectic nilmanifolds with no locally conformal Kähler metrics [PDF]

open access: yesComplex Manifolds, 2017
We report on a question, posed by L. Ornea and M. Verbitsky in [32], about examples of compact locally conformal symplectic manifolds without locally conformal Kähler metrics.
Bazzoni Giovanni, Marrero Juan Carlos
doaj   +2 more sources

Harmonic Analysis in One-Parameter Metabelian Nilmanifolds [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
Let G be a connected, simply connected one-parameter metabelian nilpotent Lie group, that means, the corresponding Lie algebra has a one-codimensional abelian subalgebra. In this article we show that G contains a discrete cocompact subgroup.
Amira Ghorbel
doaj   +6 more sources

Gauge-Higgs models from nilmanifolds

open access: yesPhysics Letters B, 2022
We consider the compactification of a Yang-Mills theory on a three-dimensional nilmanifold. The compactification generates a Yang-Mills theory in four space-time dimensions, coupled to a specific scalar sector. The compactification geometry gives rise to
Aldo Deandrea   +2 more
doaj   +1 more source

Dirac operator spectrum on a nilmanifold

open access: yesNuclear Physics B, 2022
We obtain the spectrum of the Dirac operator on the three-dimensional Heisenberg nilmanifold M3, and its complete dependence on the metric moduli.
Aldo Deandrea   +2 more
doaj   +1 more source

Laplacian spectrum on a nilmanifold, truncations and effective theories

open access: yesJournal of High Energy Physics, 2018
Motivated by low energy effective theories arising from compactification on curved manifolds, we determine the complete spectrum of the Laplacian operator on the three-dimensional Heisenberg nilmanifold.
David Andriot, Dimitrios Tsimpis
doaj   +1 more source

Hodge numbers and invariant complex structures of compact nilmanifolds

open access: yesComplex Manifolds, 2016
In this paper, we consider several invariant complex structures on a compact real nilmanifold, and we study relations between invariant complex structures and Hodge numbers.
Yamada Takumi
doaj   +1 more source

Degree of non-K\"ahlerianity for 6-dimensional nilmanifolds [PDF]

open access: yes, 2015
We use Bott-Chern cohomology to measure the non-K\"ahlerianity of 6-dimensional nilmanifolds endowed with the invariant complex structures in M. Ceballos, A. Otal, L. Ugarte, and R.
Angella, Daniele   +2 more
core   +2 more sources

Black holes and nilmanifolds: quasinormal modes as the fingerprints of extra dimensions?

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We investigate whether quasinormal modes (QNMs) can be used in the search for signatures of extra dimensions. To address a gap in the Beyond the Standard Model (BSM) literature, we focus here on higher dimensions characterised by negative Ricci curvature.
Anna Chrysostomou   +4 more
doaj   +1 more source

Special holonomy manifolds, domain walls, intersecting branes and T-folds

open access: yesJournal of High Energy Physics, 2020
We discuss the special holonomy metrics of Gibbons, Lu, Pope and Stelle, which were constructed as nilmanifold bundles over a line by uplifting supersymmetric domain wall solutions of supergravity to 11 dimensions.
N. Chaemjumrus, C.M. Hull
doaj   +1 more source

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