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   Generalized Weakly Symmetric Sasakian Manifolds  
   
نویسنده pirhadi v. ,fasihi ramandi g. ,azami s.
منبع journal of mathematical extension - 2023 - دوره : 17 - شماره : 10 - صفحه:1 -17
چکیده    In this parer, we give a necessary condition for sasakian manifolds to be generalized weakly symmetric. we prove the odddimensional spheres are the only generalized weakly symmetric sasakian manifolds. then, we show that generalized weakly ricci-symmetric sasakian manifolds are einstein. thereafter, we define the sense of weakly parallel riemannian submanifolds and show that every weakly parallel invariant submanifold of a sasakian manifold is totally geodesic. finally, we provide some examples which verify our main results.
کلیدواژه Sasakian manifolds ,generalized weakly symmetric manifolds ,generalized weakly Ricci-symmetric manifolds ,weakly parallel invariant submanifolds
آدرس university of kashan, Iran, imam khomeini international university, Iran, imam khomeini international university, Iran
 
     
   
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