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Related papers: Semi-parallel Meridian Surfaces in $E^4$

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Meridian surfaces in the Euclidean 4-space are two-dimensional surfaces which are one-parameter systems of meridians of a standard rotational hypersurface. On the base of our invariant theory of surfaces we study meridian surfaces with…

Differential Geometry · Mathematics 2016-01-26 Georgi Ganchev , Velichka Milousheva

In the present article we study a special class of surfaces in the four-dimensional Euclidean space, which are one-parameter systems of meridians of the standard rotational hypersurface. They are called meridian surfaces. We show that a…

Differential Geometry · Mathematics 2014-10-30 Kadri Arslan , Betul Bulca , Velichka Milousheva

We construct a special class of spacelike surfaces in the Minkowski 4-space which are one-parameter systems of meridians of the rotational hypersurface with lightlike axis and call these surfaces meridian surfaces of parabolic type. They…

Differential Geometry · Mathematics 2016-01-27 Georgi Ganchev , Velichka Milousheva

In the present paper we consider a special class of Lorentz surfaces in the four-dimensional pseudo-Euclidean space with neutral metric which are one-parameter systems of meridians of rotational hypersurfaces with timelike or spacelike axis…

Differential Geometry · Mathematics 2017-04-27 Betul Bulca , Velichka Milousheva

We consider a special class of spacelike surfaces in the Minkowski 4-space which are one-parameter systems of meridians of the rotational hypersurface with timelike or spacelike axis. We call these surfaces meridian surfaces of elliptic or…

Differential Geometry · Mathematics 2016-07-15 Georgi Ganchev , Velichka Milousheva

We construct a special class of Lorentz surfaces in the pseudo-Euclidean 4-space with neutral metric which are one-parameter systems of meridians of rotational hypersurfaces with timelike or spacelike axis and call them meridian surfaces.…

Differential Geometry · Mathematics 2017-04-27 Betul Bulca , Velichka Milousheva

We apply the invariant theory of surfaces in the four-dimensional Euclidean space to the class of general rotational surfaces with meridians lying in two-dimensional planes. We find all minimal super-conformal surfaces of this class.

Differential Geometry · Mathematics 2010-11-22 Velichka Milousheva

In the present paper we consider a special class of spacelike surfaces in the Minkowski 4-space which are one-parameter systems of meridians of the rotational hypersurface with timelike or spacelike axis. They are called meridian surfaces…

Differential Geometry · Mathematics 2016-07-15 Kadri Arslan , Velichka Milousheva

In this paper, we study meridian surfaces of Weingarten type in Euclidean 4-space E^4. We give the neccessary and sufficient conditions for a meridian surface in E^4 to become Weingarten type.

Differential Geometry · Mathematics 2013-05-15 Gunay Ozturk , Betul Bulca , Bengu Kilic Bayram , Kadri Arslan

We construct a special class of Lorentz surfaces in the pseudo-Euclidean 4-space with neutral metric which are one-parameter systems of meridians of rotational hypersurfaces with lightlike axis and call them meridian surfaces. We give the…

Differential Geometry · Mathematics 2018-10-02 Velichka Milousheva

In this study, we define a brief description of the hyperbolic and elliptic rotational surfaces using a curve and matrices in 4-dimensional semi Euclidean space. That is, we provide different types of rotational matrices, which are the…

Differential Geometry · Mathematics 2023-06-13 Fatma Almaz , Mihriban Alyamaç Külahcı

We consider a special family of 2-dimensional timelike surfaces in the Minkowski 4-space $\mathbb{R}^4_1$ which lie on rotational hypersurfaces with timelike axis and call them meridian surfaces of elliptic type. We study the following…

Differential Geometry · Mathematics 2025-04-02 Victoria Bencheva , Velichka Milousheva

In the four-dimensional pseudo-Euclidean space with neutral metric there are three types of rotational surfaces with two-dimensional axis - rotational surfaces of elliptic, hyperbolic or parabolic type. A surface whose mean curvature vector…

Differential Geometry · Mathematics 2014-10-27 Georgi Ganchev , Velichka Milousheva

In the present study we consider the generalized rotational surfaces in Euclidean spaces. Firstly, we consider generalized spherical curves in Euclidean $(n+1)-$space $\mathbb{E}^{n+1}$. Further, we introduce some kind of generalized…

Differential Geometry · Mathematics 2016-05-03 Bengu Bayram , Kadri Arslan , Betul Bulca

We define general rotational surfaces of elliptic and hyperbolic type in the pseudo-Euclidean 4-space with neutral metric which are analogous to the general rotational surfaces of C. Moore in the Euclidean 4-space. We study Lorentz general…

Differential Geometry · Mathematics 2018-10-02 Yana Aleksieva , Velichka Milousheva , Nurettin Cenk Turgay

In this paper, we study and classify singular minimal translation surfaces in a Euclidean space of dimension 3 endowed with a certain semi-symmetric (non-)metric connection.

Differential Geometry · Mathematics 2020-11-02 Ayla Erdur , Muhittin Evren Aydin , Mahmut Ergut

Wintgen ideal surfaces in E^4 form an important family of surfaces, namely surfaces with circular ellipse of curvature. Obviously, Wintgen ideal surfaces satisfy the pointwise equality K+K_N=H^2. In the present study we consider the Wintgen…

Differential Geometry · Mathematics 2015-04-23 Betul Bulca , Kadri Arslan

In this work, we study some classes of rotational surfaces in the pseudo-Euclidean space $\mathbb{E}^4_t$ with profile curves lying in 2-dimensional planes. First, we determine all such surfaces in the Minkowski 4-space $\mathbb{E}^4_1$…

Differential Geometry · Mathematics 2015-08-14 Burcu Bektaş , Elif Özkara Canfes , Uğur Dursun

We classify totally geodesic and parallel hypersurfaces of four-dimensional non-reductive homogeneous pseudo-Riemannian manifolds.

Differential Geometry · Mathematics 2018-09-19 Giovanni Calvaruso , Reinier Storm , Joeri Van der Veken

In this paper, we study rotational surfaces of elliptic, hyperbolic and parabolic type with pointwise 1-type Gauss map which have spacelike profile curve in four dimensional pseudo Euclidean space E4-2 and obtain some characterizations for…

Differential Geometry · Mathematics 2017-07-14 Ferdag Kahraman Aksoyak , Yusuf Yayli
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