Yazar "Uddin, Siraj" seçeneğine göre listele

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    A CLASS OF phi-RECURRENT ALMOST COSYMPLECTIC SPACE
    (Honam Mathematical Soc, 2018) Balkan, Yavuz Selim; Uddin, Siraj; Alkhaldi, Ali H.
    In this paper, we study phi-recurrent almost cosymplectic (k, mu)-space and prove that it is an eta-Einstein manifold with constant coefficients. Next, we show that a three-dimensional locally phi-recurrent almost cosymplectic (k, mu)-space is the space of constant curvature.
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    A New Class of f-Structures Satisfying f(3) - f=0
    (Univ Nis, Fac Sci Math, 2018) Balkan, Yavuz Selim; Uddin, Siraj; Stankovic, Mica S.; Alkhaldi, Ali H.
    In this study, we introduce a new class of pseudo f-structure, called hyperbolic f-structure. We give some classifications of this new structure. Further, we extend the notion of (kappa, mu, nu)-nullity distribution to hyperbolic almost Kenmotsu f-manifolds. Finally, we construct some non-trivial examples of such manifolds.