Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Cristian Ida"'
Autor:
Cristian Ida, Alexandru Oană
Publikováno v:
The Scientific World Journal, Vol 2015 (2015)
We consider the lift of a foliation to its conormal bundle and some transverse geometrical structures associated with this foliation are studied. We introduce a good vertical connection on the conormal bundle and, moreover, if the conormal bundle is
Externí odkaz:
https://doaj.org/article/97ba29cd1eb24683af262e46f83867c9
Autor:
Cristian Ida
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 6, p 054 (2010)
The aim of this paper is to construct horizontal Chern forms of a holomorphic vector bundle using complex Finsler structures. Also, some properties of these forms are studied.
Externí odkaz:
https://doaj.org/article/2832795fdf2f488c850570def45e696e
Autor:
Paul Popescu, Cristian Ida
Publikováno v:
Journal of Geometry and Physics. 112:210-223
The Dolbeault cohomology plays an important role in the study of some ∂ ¯ -invariants of complex and holomorphic vector bundles as ∂ ¯ -Chern classes and Atiyah classes. In this paper we generalize similar invariants and their properties in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::492ed64c4d78f10ea2242cfa8e75f9b1
https://doi.org/10.1016/j.geomphys.2016.11.009
https://doi.org/10.1016/j.geomphys.2016.11.009
Autor:
Cristian Ida, Paul Popescu
Publikováno v:
Filomat. 31:1985-1994
The present paper unifies some aspects concerning the vertical Liouville distributions on the tangent (cotangent) bundle of a Finsler (Cartan) space in the context of generalized geometry. More exactly, we consider the big-tangent manifold $\mathcal{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::176885ab1262c8cd9e1f0b6431709c4f
https://doi.org/10.2298/fil1707985i
https://doi.org/10.2298/fil1707985i
Autor:
Cristian Ida, Adelina Manea
Publikováno v:
Applied Mathematics & Information Sciences. 10:2035-2043
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c0b9dfdfe62cf247844fcb93d2dd9d5
https://doi.org/10.18576/amis/100605
https://doi.org/10.18576/amis/100605
Autor:
Cristian Ida, Paul Popescu
Publikováno v:
Mediterranean Journal of Mathematics. 13:803-824
The almost complex Lie algebroids over smooth manifolds are introduced in the paper. In the first part we give some examples and we obtain a Newlander-Nirenberg type theorem on almost complex Lie algebroids. Next the almost Hermitian Lie algebroids a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57af378338da00dc518f0fb3c9d87cc8
https://doi.org/10.1007/s00009-015-0516-4
https://doi.org/10.1007/s00009-015-0516-4
Autor:
Mircea Crasmareanu, Cristian Ida
Publikováno v:
Volume: 39, Issue: 3 322-334
Turkish Journal of Mathematics
Turkish Journal of Mathematics
The goal of this paper is to consider the notion of almost analytic form in a unifying setting for both almost complex and almost paracomplex geometries. We use a global formalism, which yields, in addition to generalizations of the main results of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bea54802ecc2881e00eab8834985834
https://doi.org/10.3906/mat-1404-29
https://doi.org/10.3906/mat-1404-29
Autor:
Cristian Ida, Adelina Manea
Publikováno v:
Mediterranean Journal of Mathematics. 14
In this paper, we investigate the $$\nabla $$ integrability of generalized almost para-Norden/para-Hermitian structures on the big-tangent bundle of smooth manifolds endowed with some additional structures. We also study their invariance under a B-fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6045afb6a43ef3e9037aadad02f45f30
https://doi.org/10.1007/s00009-017-0975-x
https://doi.org/10.1007/s00009-017-0975-x
Autor:
Cristian Ida, Sabinşan Mercheşan
Publikováno v:
Analele Universitatii "Ovidius" Constanta - Seria Matematica. 22:127-139
After a brief review of some basic notions concerning 1-differentiable cohomology, named here ď-cohomology, we introduce a Lichnerowicz ď– cohomology in a classical way. Next, following the classical study of coeffective cohomology, a special att
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5259c9d9a18e6d0afd8141c7c3ddec35
https://doi.org/10.2478/auom-2014-0011
https://doi.org/10.2478/auom-2014-0011
Autor:
Mircea Crasmareanu, Cristian Ida
Publikováno v:
Results in Mathematics. 67:495-519
The goal of this paper is to generalize the notion of almost analyticity in the almost (para)complex Lie algebroids framework. We use a global formalism which yields to generalizations of the main results of previous known almost (para)complex manifo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512472e4d9c81fca61ba21a2a6e2a54d
https://doi.org/10.1007/s00025-014-0415-1
https://doi.org/10.1007/s00025-014-0415-1