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Displaying 141 – 160 of 238

Non-Euclidean geometry and differential equations

A. Popov (1996)

Banach Center Publications

In this paper a geometrical link between partial differential equations (PDE) and special coordinate nets on two-dimensional smooth manifolds with the a priori given curvature is suggested. The notion of G-class (the Gauss class) of differential equations admitting such an interpretation is introduced. The perspective of this approach is the possibility of applying the instruments and methods of non-Euclidean geometry to the investigation of differential equations. The equations generated by the...

Non-Euclidean structures as internal variables in non-equilibrium thermomechanics.

Ciancio, V., Francaviglia, M. (2003)

Balkan Journal of Geometry and its Applications (BJGA)

Non-existence of almost Kähler structure on hyperbolic spaces of dimension 2n(...4).

Kouei Sekigawa, Takashi Oguro (1994)

Mathematische Annalen

Nonexistence of axially symmetric, stationary solution of Einstein vacuum equation with disconnected symmetric event horizon.

Gang Tian, Yan Yan Li (1991)

Manuscripta mathematica

Non-existence of Continuous Convex Functions on Certain Riemannian Manifolds.

Shing-Tung Yau (1974)

Mathematische Annalen

Nonexistence of Curvature in Most Points of Most Convex Surfaces.

Tudor Zamfirescu (1980)

Mathematische Annalen

Nonexistence of Petrov type III space-times on which Weyl's neutrino equation or Maxwell's equations satisfy Huygens' principle

R. G. McLenaghan, F. D. Sasse (1996)

Annales de l'I.H.P. Physique théorique

Non-existence of proper semi-invariant submanifolds of a Lorentzian para-Sasakian manifold.

De, U.C., Shaikh, Absos Ali (1999)

Bulletin of the Malaysian Mathematical Society. Second Series

Non-existence of real lightlike hypersurfaces of an indefinite complex space form.

Ṣahin, Bayram, Güneṣ, Rifat (2000)

Balkan Journal of Geometry and its Applications (BJGA)

Nonexistence of smooth Levi-flat hypersurfaces in complex projective spaces of dimension $\geq 3$ .

Siu, Yum-Tong (2000)

Annals of Mathematics. Second Series

Non-existence of some canonical constructions on connections

Włodzimierz M. Mikulski (2003)

Commentationes Mathematicae Universitatis Carolinae

For a vector bundle functor $H : ℳ f \to 𝒱 ℬ$ with the point property we prove that $H$ is product preserving if and only if for any $m$ and $n$ there is an $ℱ ℳ_{m, n}$ -natural operator $D$ transforming connections $Γ$ on $(m, n)$ -dimensional fibered manifolds $p : Y \to M$ into connections $D (Γ)$ on $H p : H Y \to H M$ . For a bundle functor $E : ℱ ℳ_{m, n} \to ℱ ℳ$ with some weak conditions we prove non-existence of $ℱ ℳ_{m, n}$ -natural operators $D$ transforming connections $Γ$ on $(m, n)$ -dimensional fibered manifolds $Y \to M$ into connections $D (Γ)$ on $E Y \to M$ .

We extend a construction by K. Yamato [Ya] to obtain new explicit examples of Riemannian 3-manifolds as in the title. Some of these examples have an interesting geometrical interpretation.

Non-hyperbolic closed geodesics.

Gudlaugur Thorbergsson (1979)

Mathematica Scandinavica

Non-isotropic circle translation cyclides of the flag space. I. (Nichtisotrope Kreisschiebzykliden des Flaggenraumes. I.)

Karáné, G.S. (1994)

Beiträge zur Algebra und Geometrie

Currently displaying 141 – 160 of 238

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Displaying 141 – 160 of 238

Non-Euclidean geometry and differential equations

Non-Euclidean structures as internal variables in non-equilibrium thermomechanics.

Non-existence of almost Kähler structure on hyperbolic spaces of dimension 2n(...4).

Nonexistence of axially symmetric, stationary solution of Einstein vacuum equation with disconnected symmetric event horizon.

Non-existence of Continuous Convex Functions on Certain Riemannian Manifolds.

Nonexistence of Curvature in Most Points of Most Convex Surfaces.

Nonexistence of Petrov type III space-times on which Weyl's neutrino equation or Maxwell's equations satisfy Huygens' principle

Non-existence of proper semi-invariant submanifolds of a Lorentzian para-Sasakian manifold.

Non-existence of real lightlike hypersurfaces of an indefinite complex space form.

Nonexistence of smooth Levi-flat hypersurfaces in complex projective spaces of dimension $\geq 3$ .

Non-existence of some canonical constructions on connections

Non-Hamiltonian actions and Lie-algebra cohomology of vector fields.

Non-Hermitian quantum systems and time-optimal quantum evolution.

Non-Holomorphic Harmonic morhpisms form Kähler manifolds.

Nonholonomic approach of multitime maximum principle.

Nonholonomic frames in Finsler geometry.

Nonholonomic tangent spaces: intrinsic construction and rigid dimensions.

Nonhomogeneous Riemannian 3-manifolds with distinct constant Ricci eigenvalues

Non-hyperbolic closed geodesics.

Non-isotropic circle translation cyclides of the flag space. I. (Nichtisotrope Kreisschiebzykliden des Flaggenraumes. I.)

Currently displaying 141 – 160 of 238