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Displaying 1121 – 1140 of 1190

On variants of Arnold conjecture

Roman Golovko (2020)

Archivum Mathematicum

In this note we discuss the collection of statements known as Arnold conjecture for Hamiltonian diffeomorphisms of closed symplectic manifolds. We provide an overview of the homological, stable and strong versions of Arnold conjecture for non-degenerate Hamiltonian systems, a few versions of Arnold conjecture for possibly degenerate Hamiltonian systems, the degenerate version of Arnold conjecture for Hamiltonian homeomorphisms and Sandon’s version of Arnold conjecture for contactomorphisms.

On variation of the volume under infinitesimal bending of a closed rotational surface.

Velimirović, Ljubica S. (1999)

Novi Sad Journal of Mathematics

On Variations of Metrics.

Halldór I. Eliasson (1971)

Mathematica Scandinavica

On Vassiliev's knot invariants

Mohnke, Klaus (1994)

Proceedings of the Winter School "Geometry and Physics"

On vector-bundle valued cohomology on complex Finsler manifolds.

Ida, Cristian (2009)

Acta Universitatis Apulensis. Mathematics - Informatics

On Veronese surfaces

Alois Švec (1988)

Czechoslovak Mathematical Journal

On Veronese-Borůvka spheres

Katsuei Kenmotsu (1997)

Archivum Mathematicum

In this paper, history of reserches for minimal immersions from constant Gaussian curvature 2-manifolds into space forms is explained with special emphasis of works of O. Borůvka. Then recent results for the corresponding probrem to classify minimal immersions of such surfaces in complex space forms are discussed.

On Warped Product Manifolds Satisfying some Curvature Condition of Pseudosymmetric Type

Filip Defever, Mileva Prvanivic΄ (1994)

Δελτίο της Ελληνικής Μαθηματικής Εταιρίας

On weak symmetries of Kähler manifolds.

Tamássy, L., De, U.C., Binh, T.Q. (2000)

Balkan Journal of Geometry and its Applications (BJGA)

On weakly and pseudo concircular symmetric structures on a Riemannian manifold

Füsun Özen Zengin, Sezgin Altay Demirbag (2008)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

In this paper, we examine the properties of hypersurfaces of weakly and pseudo concircular symmetric manifolds and we give an example for these manifolds.

On weakly concircular symmetric spaces.

Özen, Füsun, Altay, Sezgin (2005)

Mathematica Pannonica

On weakly cyclic Ricci symmetric manifolds

A. A. Shaikh, Sanjib Kumar Jana (2006)

Annales Polonici Mathematici

We introduce a type of non-flat Riemannian manifolds called weakly cyclic Ricci symmetric manifolds and study their geometric properties. The existence of such manifolds is shown by several non-trivial examples.

On weakly harmonic maps from Finsler to riemannian manifolds

Heiko von der Mosel, Sven Winklmann (2009)

Annales de l'I.H.P. Analyse non linéaire

On weakly projective symmetric manifolds.

Shaikh, A.A., Hui, Shyamal Kumar (2009)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

On weakly symmetric and special weakly Ricci symmetric Lorentzian $β$ -Kenmotsu manifolds.

Sreenivasa, G.T., Venkatesha, Bagewadi, C.S., Naganagoud, K. (2009)

Acta Universitatis Apulensis. Mathematics - Informatics

On weakly symmetric and weakly Ricci-symmetric $K$ -contant manifolds.

De, U.C., Binh, T.Q., Shaikh, A.A. (2000)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

On weakly symmetric manifolds with a type of semi-symmetric non-metric connection

Hülya Bağdatlı Yılmaz (2011)

Annales Polonici Mathematici

The object of the present paper is to study weakly symmetric manifolds admitting a type of semi-symmetric non-metric connection.

On weakly symmetric spacetimes

Uday Chand De, Sahanous Mallick (2012)

Kragujevac Journal of Mathematics

On Weakly $W_{3}$ -Symmetric Manifolds

Shyamal Kumar Hui (2011)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

The object of the present paper is to study weakly $W_{3}$ -symmetric manifolds and its decomposability with the existence of such notions. Among others it is shown that in a decomposable weakly $W_{3}$ -symmetric manifold both the decompositions are weakly Ricci symmetric.

On weakly $φ$ -symmetric Kenmotsu Manifolds

Shyamal Kumar Hui (2012)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

The object of the present paper is to study weakly $φ$ -symmetric and weakly $φ$ -Ricci symmetric Kenmotsu manifolds. It is shown that weakly $φ$ -symmetric and weakly $φ$ -Ricci symmetric Kenmotsu manifolds are $η$ -Einstein.

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