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Bott-Chern Harmonic Forms on Stein Manifolds [PDF]

open access: yesProceedings of the American Mathematical Society, 2018
Let $M$ be an $n$-dimensional $d$-bounded Stein manifold $M$, i.e., a complex $n$-dimensional manifold $M$ admitting a smooth strictly plurisubharmonic exhaustion $\rho$ and endowed with the K\"ahler metric whose fundamental form is $\omega=i\partial ...
Piovani, Riccardo, Tomassini, Adriano
core   +4 more sources

Improving cloud type classification of ground-based images using region covariance descriptors [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
The distribution and frequency of occurrence of different cloud types affect the energy balance of the Earth. Automatic cloud type classification of images continuously observed by the ground-based imagers could help climate researchers find the ...
Y. Tang   +7 more
doaj   +1 more source

Ramified cover of varieties with nef cotangent bundle

open access: yesComptes Rendus. Mathématique, 2022
We construct examples to show that having nef cotangent bundle is not preserved under finite ramified covers. Our examples also show that a projective manifold with Stein universal cover may not have nef cotangent bundle, disproving a conjecture of Liu ...
Wang, Yiyu
doaj   +1 more source

Parabolic Stein Manifolds [PDF]

open access: yesMATHEMATICA SCANDINAVICA, 2014
An open Riemann surface is called parabolic in case every bounded subharmonic function on it reduces to a constant. Several authors introduced seemingly different analogs of this notion for Stein manifolds of arbitrary dimension. In the first part of this note we compile these notions of parabolicity and give some immediate relations among these ...
Aytuna, Aydın, Sadullaev, A.
openaire   +4 more sources

Learning Kernel Stein Discrepancy for Training Energy-Based Models

open access: yesApplied Sciences, 2023
The primary challenge in unsupervised learning is training unnormalized density models and then generating similar samples. Few traditional unnormalized models know what the quality of the trained model is, as most models are evaluated by downstream ...
Lu Niu, Shaobo Li, Zhenping Li
doaj   +1 more source

Stein fillable Seifert fibered 3–manifolds [PDF]

open access: yesAlgebraic & Geometric Topology, 2011
18 pages, 6 figures; added one ...
Lecuona, Ana G, Lisca, Paolo
openaire   +4 more sources

Multiple Kernel Stein Spatial Patterns for the Multiclass Discrimination of Motor Imagery Tasks

open access: yesApplied Sciences, 2020
Brain–computer interface (BCI) systems communicate the human brain and computers by converting electrical activity into commands to use external devices.
Steven Galindo-Noreña   +2 more
doaj   +1 more source

On Subcritically Stein Fillable 5-manifolds [PDF]

open access: yesCanadian Mathematical Bulletin, 2018
AbstractWe make some elementary observations concerning subcritically Stein fillable contact structures on 5-manifolds. Specifically, we determine the diffeomorphism type of such contact manifolds in the case where the fundamental group is finite cyclic, and we show that on the 5-sphere, the standard contact structure is the unique subcritically ...
Ding, Fan   +2 more
openaire   +2 more sources

Extending holomorphic mappings from subvarieties in Stein manifolds [PDF]

open access: yes, 2004
Suppose that Y is a complex manifold with the property that any holomorphic map from a compact convex set in a complex Euclidean space C^n (for any n) to Y is a uniform limit of entire maps from C^n to Y.
Forstneric, Franc
core   +5 more sources

Proper holomorphic embeddings into Stein manifolds with the density property [PDF]

open access: yes, 2014
We prove that a Stein manifold of dimension $d$ admits a proper holomorphic embedding into any Stein manifold of dimension at least $2d+1$ satisfying the holomorphic density property.
Andrist, Rafael   +3 more
core   +1 more source

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