Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Blaga Adara M."'
Publikováno v:
Acta Universitatis Sapientiae: Mathematica, Vol 13, Iss 2, Pp 468-482 (2021)
The object of the present paper is to study para-Kenmotsu manifolds satisfying different conditions of semi-symmetric type.
Externí odkaz:
https://doaj.org/article/83db0318c57c4f76972c54231e057b02
Autor:
Blaga, Adara M., Nannicini, Antonella
We introduce the concept of generalized almost plastic structure, and, on a pseudo-Riemannian manifold endowed with two $(1,1)$-tensor fields satisfying some compatibility conditions, we construct a family of generalized almost plastic structures and
Externí odkaz:
http://arxiv.org/abs/2411.13074
Autor:
Blaga, Adara M.
We put into light the Killing vector fields on $\mathbb R^2$ endowed with a family of diagonal Riemannian metrics. According to certain restrictions on the Lam\'{e} coefficients, we concretely describe the symmetries of the metric.
Comment: 11 p
Comment: 11 p
Externí odkaz:
http://arxiv.org/abs/2410.11969
Autor:
Blaga Adara M., Nannicini Antonella
Publikováno v:
Complex Manifolds, Vol 6, Iss 1, Pp 150-159 (2019)
We study some properties of curvature tensors of Norden and, more generally, metallic pseudo-Riemannian manifolds. We introduce the notion of J-sectional and J-bisectional curvature of a metallic pseudo-Riemannian manifold (M, J, g) and study their p
Externí odkaz:
https://doaj.org/article/515747c623b9462680efa7cd26b0f576
Autor:
Blaga, Adara M.
We study some properties of a $3$-dimensional manifold with a diagonal Riemannian metric as an almost $\eta$-Ricci soliton from the following points of view: under certain assumptions, we determine the potential vector field if $\eta$ is given; we ge
Externí odkaz:
http://arxiv.org/abs/2406.12533
Autor:
Blaga, Adara M., Latcu, Dan Radu
We study some properties of pointwise $k$-slant submanifolds of almost Hermitian manifolds with a special view towards K\"{a}hler manifolds. In particular, we characterize the integrability of the component distributions, treating also the totally ge
Externí odkaz:
http://arxiv.org/abs/2311.12703
Autor:
Blaga, Adara M.
We provide conditions for a compact gradient hyperbolic Ricci and a compact gradient hyperbolic Yamabe soliton to be trivial, hence, the manifold to be an Einstein manifold in the first case, and a manifold of constant scalar curvature, in the second
Externí odkaz:
http://arxiv.org/abs/2311.09337
Autor:
Blaga, Adara M.
We characterize the $2$-Killing vector fields on a multiply twisted product manifold, with a special view towards generalized spacetimes. More precisely, we determine the nonlinear differential equations that completely describe them and the twisted
Externí odkaz:
http://arxiv.org/abs/2310.19423
Autor:
Blaga, Adara M., Özgür, Cihan
We define the hyperbolic Yamabe flow and we obtain some properties of its stationary solutions, namely, of hyperbolic Yamabe solitons. We also consider immersed submanifolds as hyperbolic Yamabe solitons and we prove that, under certain assumptions,
Externí odkaz:
http://arxiv.org/abs/2310.15814
Autor:
Blaga Adara M., Ida Cristian
Publikováno v:
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, Vol 23, Iss 1, Pp 53-64 (2015)
The notion of generalized almost paracontact structure on the generalized tangent bundle TM ⊕ T* M is introduced and its properties are investigated. The case when the manifold M carries an almost paracontact metric structure is also discussed. Con
Externí odkaz:
https://doaj.org/article/ff6983de1ea94032b5594fde50470572