Zobrazeno 1 - 10
of 19
pro vyhledávání: '"reza mirzaie"'
Autor:
Reza Mirzaie, mojtaba heydari
Publikováno v:
پژوهشهای ریاضی, Vol 3, Iss 3, Pp 147-154 (2017)
Let be a differentiable action of a Lie group on a differentiable manifold and consider the orbit space with the quotient topology. Dimension of is called the cohomogeneity of the action of on . If is a differentiable manifold of cohomogeneity one un
Externí odkaz:
https://doaj.org/article/1dc19f19488a4ebab32587f26d845202
Autor:
Armin Allahverdy, Alireza Khorrami Moghaddam, Sarah Rahbar, Sadjad Shafiekhani, Hamid Reza Mirzaie, Saeid Amanpour, Yasaman Etemadi, Jamshid Hadjati, Amir Homayoun Jafari
Publikováno v:
Journal of Medical Signals and Sensors, Vol 9, Iss 1, Pp 15-23 (2019)
Background: To predict the behavior of biological systems, mathematical models of biological systems have been shown to be useful. In particular, mathematical models of tumor-immune system interactions have demonstrated promising results in predictio
Externí odkaz:
https://doaj.org/article/6c3f290a094e4f43804d06aa9abe2ecc
Autor:
Reza MİRZAİE, Omid REZAİE
Publikováno v:
Volume: 15, Issue: 2 178-182
International Electronic Journal of Geometry
International Electronic Journal of Geometry
We show that convex hull of extreme points of a closed convex subset of a compact flat Riemannian manifold is equal to the subset itself.
Publikováno v:
Culture of Islamic Architecture and Urbanism Journal. 7:55-74
Autor:
Omid Rezaei, Reza Mirzaie
Publikováno v:
Iranian Journal of Science and Technology, Transactions A: Science. 46:451-454
Autor:
Reza Mirzaie, Omid Rezaei
Publikováno v:
Mathematical Sciences. 16:317-322
Let M be a Lorentzian manifold and $$\phi$$ be a future timelike isometry of M. We use $$\phi$$ to construct a concave function $$f_{\phi }$$ on M under some conditions on the curvature of timelike and spacelike planes. As a topological application,
Publikováno v:
Applied Thermal Engineering. 224:120117
Autor:
Marzie Bakhtiari, Reza Mirzaie
Publikováno v:
Bulletin of the Iranian Mathematical Society. 47:585-593
We describe the orbits of a cohomogeneity two Riemannian G-manifold M from topological point of view, under the conditions that G is nonsemisimple and M decomposes as a product of negatively curved Riemannian manifolds.
Autor:
Reza Mirzaie
Publikováno v:
Filomat. 31:5827-5831
We find an upper bound for the Hausdorff dimension of the nondifferentiability set of a continuous convex function defined on a Riemannian manifold. As an application, we show that the boundary of a convex open subset of Rn, n ? 2, has Hausdorff dime
Publikováno v:
Energy Conversion and Management. 226:113467
The increasing demand for energy around the world makes it vital to use more suitable and efficient power generation systems. Combined heat and power (CHP) systems can produce power and heating with high possible efficiency. Also, in recent years, th