Results 91 to 100 of about 796 (142)

Compact homogeneous Leviflat CR-manifolds. [PDF]

open access: yesComplex Analysis Synerg, 2021
Al-Abdallah AR, Gilligan B.
europepmc   +1 more source

Abelian complex structures on 6-dimensional compact nilmanifolds [PDF]

open access: yes, 2002
summary:We classify the $6$-dimensional compact nilmanifolds that admit abelian complex structures, and for any such complex structure $J$ we describe the space of symplectic forms which are compatible with $J$
Fernández, Marisa   +2 more
core   +1 more source

Balanced hermitian geometry on 6-dimensional nilmanifolds [PDF]

open access: yes, 2015
The invariant balanced Hermitian geometry of nilmanifolds of dimension 6 is described. We prove that the (restricted) holonomy group of the associated Bismut connection reduces to a proper subgroup of SU(3) if and only if the complex structure is abelian.
Ugarte, L., Villacampa, R.
core   +1 more source

The Lalonde–McDuff conjecture for nilmanifolds

open access: yesDifferential Geometry and its Applications, 2008
We prove that any Hamiltonian bundle whose fiber is a nilmanifold c-splits.
openaire   +3 more sources

There are only finitely many infra-nilmanifolds under each nilmanifold: a new proof

open access: yesIndagationes Mathematicae, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dekimpe, Karel   +2 more
openaire   +1 more source

Cohomological decomposition of complex nilmanifolds [PDF]

open access: yes, 2015
We study pureness and fullness of invariant complex structures on nilmanifolds. We prove that in dimension six, apart from the complex torus, there exist only two non-isomorphic complex structures satisfying both properties, which live on the real ...
Latorre, Adela, Ugarte, Luis
core  

Compact nilmanifold extensions of ergodic actions [PDF]

open access: yesTransactions of the American Mathematical Society, 1976
We study extensions of dymanical systems defined by co-cycles into nilpotent Lie groups.
openaire   +2 more sources

Abelian hypercomplex 8-dimensional nilmanifolds [PDF]

open access: yes, 2000
We study invariant Abelian hypercomplex structures on 8-dimensional nilpotent Lie groups. We prove that a group N admitting such a structure is either Abelian or an Abelian extension of a group of type H.
Fino, Anna, Dotti, Isabel Graciela
core   +1 more source

Some Remarks on Existence of a Complex Structure on the Compact Six Sphere

open access: yesAxioms
The existence or nonexistence of a complex structure on a differential manifold is a central problem in differential geometry. In particular, this problem on S6 was a long-standing unsolved problem, and differential geometry is an important tool ...
Daniel Guan, Na Li, Zhonghua Wang
doaj   +1 more source

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