Caspian Journal of Mathematical SciencesCaspian Journal of Mathematical Sciences
http://cjms.journals.umz.ac.ir/
Mon, 23 Oct 2017 15:03:52 +0100FeedCreatorCaspian Journal of Mathematical Sciences
http://cjms.journals.umz.ac.ir/
Feed provided by Caspian Journal of Mathematical Sciences. Click to visit.Warped product and quasi-Einstein metrics
http://cjms.journals.umz.ac.ir/article_1635_302.html
Warped products provide a rich class of physically significant geometric objects. Warped product construction is an important method to produce a new metric with a base manifold and a fibre. We construct compact base manifolds with a positive scalar curvature which do not admit any non-trivial quasi-Einstein warped product, and non compact complete base manifolds which do not admit any non-trivial Ricci-flat quasi-Einstein warped productFri, 31 Mar 2017 19:30:00 +0100Reduction of Differential Equations by Lie Algebra of Symmetries
http://cjms.journals.umz.ac.ir/article_1636_302.html
The paper is devoted to an application of Lie group theory to differential equations. The basic infinitesimal method for calculating symmetry group is presented, and used to determine general symmetry group of some differential equations. We include a number of important applications including integration of ordinary differential equations and finding some solutions of partial differential equations together with some examples. A Bianchi theorem for the solvable symmetry groups is given to reduce a system of ordinary differential equations.Fri, 31 Mar 2017 19:30:00 +0100Characterizations of Slant Ruled Surfaces in the Euclidean 3-space
http://cjms.journals.umz.ac.ir/article_1637_302.html
In this study, we give the relationships between the conical curvatures of ruled surfaces generated by the unit vectors of the ruling, central normal and central tangent of a ruled surface in the Euclidean 3-space E^3. We obtain differential equations characterizing slant ruled surfaces and if the reference ruled surface is a slant ruled surface, we give the conditions for the surfaces generated by central normal and central tangent vectors to be slant ruled surfaces.Fri, 31 Mar 2017 19:30:00 +0100Vector Valued multiple of $chi^{2}$ over $p-$ metric sequence spaces defined by Musielak
http://cjms.journals.umz.ac.ir/article_1327_0.html
In this article, we define the vector valued multiple of $chi^{2}$ over $p-$ metric sequence spaces defined by Musielak and study some of their topological properties and some inclusion results.Tue, 25 Oct 2016 20:30:00 +0100