نتایج جستجو برای: geometric non

تعداد نتایج: 1394297  

Journal: :Journal of High Energy Physics 2011

Journal: :Journal of the London Mathematical Society 2021

We classify n-dimensional geometric graph manifolds with non-negative scalar curvature by first showing that if n > 3 , the universal cover splits off a codimension 3-Euclidean factor. then proceed classification of 3-dimensional case, where condition is equivalent to eigenvalues Ricci tensor being ( λ 0 ) ⩾ . In this case we prove such manifold either lens space or prism very rigid metric. Thi...

بخشایشی قشلاق, مسعود , شکارچی زاده, مرتضی ,

In order to evaluate drought resistance indices, an experiment was carried out in a randomized complete block design in three replications with thirteen bread wheat genotypes and two levels of irrigation, stressed and non stressed, at Dry land Agricultural Research Institute (DARI), Maragheh, in 2009-2010. tolerant on the basis of yield performance in stressed (ys) and non-stressed (yp) environ...

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