نتایج جستجو برای: douglas tensor

تعداد نتایج: 50969  

Journal: :Archives of Disease in Childhood 1979

Journal: :Journal of the Institute of Actuaries 1966

Journal: :British Dental Journal 2007

Journal: :bulletin of the iranian mathematical society 2015
m. gürlek g. çivi

in this paper, we obtain a necessary and sufficient condition for a conformal mapping between two weyl manifolds to preserve einstein tensor. then we prove that some basic curvature tensors of $w_n$ are preserved by such a conformal mapping if and only if the covector field of the mapping is locally a gradient. also, we obtained the relation between the scalar curvatures of the weyl manifolds r...

Journal: :Tree physiology 2012
Shilo F Andrews Lawrence B Flanagan Eric J Sharp Tiebo Cai

Tree species response to climate change-induced shifts in the hydrological cycle depends on many physiological traits, particularly variation in water relations characteristics. We evaluated differences in shoot water potential, vulnerability of branches to reductions in hydraulic conductivity, and water source use between Pinus contorta Dougl. ex Loud. var. latifolia Engelm. (lodgepole pine) a...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1974

Journal: :Rocky Mountain Journal of Mathematics 2010

Journal: :Annals of the Rheumatic Diseases 1964

Journal: :PS: Political Science & Politics 1971

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