Results 61 to 70 of about 144 (107)
Discrete cyclic systems and circle congruences. [PDF]
Ann Mat Pura Appl, 2022 Hertrich-Jeromin U, Szewieczek G.
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On N(k)-Contact Metric Manifolds
Cubo, 2010 The object of the present paper is to study a type of contact metric manifolds, called contact metric manifolds admitting a non-null concircular and torse forming vector field.
A.A Shaikh, C.S Bagewadi
doaj
Some results on null hypersurfaces in $(LCS)$-manifolds
, 2019 We prove that a Lorentzian concircular structure $ (LCS)$-manifold does not admit any null hypersurface which is tangential or transversal to its characteristic vector field.
Dr. Samuel Ssekajja, Ssekajja, Samuel
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Conformal Mappings of Mixed Generalized Quasi-Einstein Manifolds Admitting Special Vector Fields
Extracta Mathematicae, 2017 It is known that Einstein manifolds form a natural subclass of the class of quasi-Einstein manifolds and plays an important role in geometry as well as in general theory of relativity.
S. Dey, A. Bhattacharyya
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Ricci solitons on manifolds and submanifolds
, 2022 Bir derleme olarak hazırlanan bu yüksek lisans tezi beş bölümden oluşmaktadır. Birinci bölümde Riemann manifoldlar üzerinde Ricci solitonlarla ilgili literatür bilgisi verildi.
Tanşu, İbrahim Halil
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Pseudo-Q-symmetric Riemannian manifolds
, 2013 In this paper, we introduce a new kind of tensor whose trace is the well-known Z tensor defined by the present authors. This is named Q tensor: the displayed properties of such tensor are investigated. A new kind of Riemannian manifold that embraces both
SUH, YOUNG JIN, MANTICA, CARLO ALBERTO
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On the Holomorphy of Developable Vector Fields on Almost Hermitian Manifolds
, 2015 Введено поняття абсолютно тopcoтвipного та біголоморфного векторних полів на майже ермітовому многовиді. Доведено, що будь-яке торсотвірне векторне поле на келеровому многовиді є абсолютно торсотвірним і абсолютно торсотвірне векторне поле ξ на наближено
Кузаконь, В.М.
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On the Geometry of Holomorphic Developable Vector Fields on Almost Hermitian Manifolds
, 2013 Знаходження умов iнварiантностi геометричних об'єктів щодо дії тієї чи іншої групи перетворень є однією з най6ільш актуальних задач геометричного дослідження.
Кириченко, В.Ф. +1 more
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CR-submanifolds of Some Lorentzian Manifolds and K-manifolds
, 2021 In this paper I have studied about CR(Cauchy-Riemann)-submanifolds of Lorentzian Concircular Structure manifold ((LCS)n-manifold), Lorentzian Para-Sasakian(LP)-cosymplectic manifold, S-manifold and Generalized Kenmotsu (GKM) manifold.
Karmakar, Payel
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$\eta $-Ricci Solitons on $\eta $-Einstein $(LCS)_n$-Manifolds
, 2016 summary:The object of the present paper is to study $\eta $-Ricci solitons on $\eta $-Einstein $(LCS)_n$-manifolds. It is shown that if $\xi $ is a recurrent torse forming $\eta $-Ricci soliton on an $\eta $-Einstein $(LCS)_n$-manifold then $\xi $ is (i)
Hui, Shyamal Kumar +1 more
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