36 citations · 99 across the 14 of their papers we have counts for
14 papers
Implications of time-dependent molecular chemistry in metal-poor dwarf stars
S. A. Deshmukh, H. -G. Ludwig
Binary molecules such as CO, OH, CH, CN, and C are often used as abundance indicators in stars. These species are usually assumed to be formed in chemical equilibrium. The time…
The solar photospheric silicon abundance according to CO5BOLD: Investigating line broadening, magnetic fields, and model effects
S. A. Deshmukh, H. -G. Ludwig, A. Kučinskas +5
In this work, we present a photospheric solar silicon abundance derived using CO5BOLD model atmospheres and the LINFOR3D spectral synthesis code. Previous works have differed in th…
Spacelike Foliations on Lorentz manifolds
Aldir Brasil, Sharief Deshmukh, Euripedes Carvalho da Silva +1
In this work, we study the geometric properties of spacelike foliations by hypersurfaces on a Lorentz manifold. We investigate conditions for the leaves being stable, totally geode…
A remarkable property of concircular vector fields on a Riemannian manifold
Ibrahim Al-Dayel, Sharief Deshmukh, Olga Belova
In this paper, we show that given a nontrivial concircular vector field on a Riemannian manifold with potential function , there exists a unique smooth…
Solar Angular Momentum Loss Over the Past Several Millennia
Adam J. Finley, Siddhant Deshmukh, Sean P. Matt +2
The Sun and Sun-like stars lose angular momentum to their magnetised stellar winds. This braking torque is coupled to the stellar magnetic field, such that changes in the strength…
Conformal vector fields and Yamabe solitons
Nasser Bin Turki, Bang-Yen Chen, Sharief Deshmukh
In this paper, we use less topological restrictions and more geometric and analytic conditions to obtain some sufficient conditions on Yamabe solitons such that their metrics are Y…
Euclidean submanifolds with conformal canonical vector field
Bang-Yen Chen, Sharief Deshmukh
The position vector field x is the most elementary and natural geometric object on a Euclidean submanifold . The position vector field plays very important roles in mathematics…
Yamabe and quasi-Yamabe solitons on Euclidean submanifolds
Bang-Yen Chen, Sharief Deshmukh
In this paper we initiate the study of Yamabe and quasi-Yamabe solitons on Euclidean submanifolds whose soliton fields are the tangential components of their position vector fields…
Control of chemical reactions using electric field gradients
Shivaraj D. Deshmukh, Yoav Tsori
We examine theoretically a new idea for spatial and temporal control of chemical reactions. When chemical reactions take place in a mixture of solvents, an external electric field…
On some geometric properties of quasi-product production models
Haila Alodan, Bang-Yen Chen, Sharief Deshmukh +1
In this article we obtain classification results on the quasi-product production functions in terms of the geometry of their associated graph hypersurfaces, generalizing in a new s…
Classification of Ricci solitons on Euclidean hypersurfaces
Bang-Yen Chen, Sharief Deshmukh
A Ricci soliton on a Riemannian manifold is said to have concurrent potential field if its potential field is a concurrent vector field. Ricci solitons aris…
Ricci solitons and concurrent vector fields
Bang-Yen Chen, Sharief Deshmukh
A Ricci soliton on a Riemannian manifold is said to have concurrent potential field if its potential field is a concurrent vector field. In the first pa…
Two optimal inequalities for anti-holomorphic submanifolds and their applications
Falleh R. Al-Solamy, Bang-Yen Chen, Sharief Deshmukh
The CR -invariant for CR-submanifolds was introduced in a recent article [B. Y. Chen, An optimal inequality for CR-warped products in complex space forms involving CR -invari…
A note on trans-Sasakian manifolds
Sharief Deshmukh, Mukut Mani Tripathi
In this paper, we obtain some sufficient conditions for a 3-dimensional compact trans-Sasakian manifold of type to be homothetic to a Sasakian manifold. A characterization…