668 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Research in Fundamental SciencesIR108 papers
- Damghan UniversityIR31 papers
- Islamic Azad University, MashhadIR13 papers
- K. N. Toosi University of TechnologyIR13 papers
- Farhangian UniversityIR12 papers
- Shahid Beheshti UniversityIR11 papers
- University of TehranIR11 papers
- Dublin City UniversityIE10 papers
- Golestan UniversityIR10 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Deakin UniversityAU9 papers
- Institute of Metal Superplasticity ProblemsRU9 papers
15 papers · 1 filter
Primordial Mass Segregation in Starburst Stellar Clusters
Sami Dib, Mohsen Shadmehri, Maheswar Gopinathan +2
We present a model to explain the mass segregation and shallow mass functions observed in the central parts of dense and young starburst stellar clusters. The model assumes that th…
Dynamics of charged dust particles in protoplanetary discs
Mohsen Shadmehri
We study the effect of an imposed magnetic field on the motion of charged dust particles in magnetically active regions of a protoplanetary disc. Assuming a power law structure for…
On Wess-Zumino terms of Brane-Antibrane systems
Mohammad R. Garousi, Ehsan Hatefi
We calculate the disk level S-matrix element of one closed string RR field, two open string tachyons and one gauge field in type II superstring theory. An expansion for the S-matri…
On the effective action of D-brane-anti-D-brane system
Mohammad R. Garousi
We examine the proposal for constructing the effective action of a D-brane-anti-D-brane system from the non-abelian extension of tachyon DBI action. We consider two prescriptions f…
A Mazur--Ulam theorem in non-Archimedean normed spaces
Mohammad Sal Moslehian, Ghadir Sadeghi
The classical Mazur--Ulam theorem which states that every surjective isometry between real normed spaces is affine is not valid for non-Archimedean normed spaces. In this paper, we…
Fuzzy almost quadratic functions
A. K. Mirmostafaee, M. S. Moslehian
We approximate a fuzzy almost quadratic function by a quadratic function in a fuzzy sense. More precisely, we establish a fuzzy Hyers--Ulam--Rassias stability of the quadratic func…
On minimal norms on
Madjid Mirzavaziri, Mohammad Sal Moslehian
In this note, we show that for each minimal norm on the algebra of all complex matrices, there exist norms and on ${\mathb…
Kelvin-Helmholtz instability in a weakly ionized layer
Mohsen Shadmehri, Turlough P. Downes
We study the linear theory of Kelvin-Helmholtz instability in a layer of ions and neutrals with finite thickness. In the short wavelength limit the thickness of the layer has a neg…
The Origin of the Arches Stellar Cluster Mass Function
Sami Dib, Jongsoo Kim, Mohsen Shadmehri
We investigate the time evolution of the mass distribution of pre-stellar cores (PSCs) and their transition to the initial stellar mass function (IMF) in the central parts of a mol…
Self-Similar Solutions of Viscous-Resistive ADAFs With Poloidal Magnetic Fields
J. Ghanbari, F. Salehi, S. Abbassi
We carry out the self-similar solutions of viscous-resistive accretion flows around a magnetized compact object. We consider an axisymmetric, rotating, isotheral steady accretion f…
Thermal entanglement in a two-qutrit system with nonlinear coupling under nonuniform external magnetic field
Iman Sargolzahi, Sayyed Yahya Mirafzali, Mohsen Sarbishaei
We study the thermal entanglement of a 2-qutrit spin chain with nonlinear coupling in the presence of nonuniform magnetic field. Thermal entanglement of an arbitrary (finite dimens…
Entropy Function for Non-extremal D1D5 and D2D6NS5-branes
Mohammad R. Garousi, Ahmad Ghodsi
We apply the entropy function formalism to non-extremal D1D5 and D2D6NS5-branes whose throat approximation is given by the Schwarzschild black hole in AdS_3\times S^3\times T^4 and…
Formation and Collapse of Quiescent Cloud Cores Induced by Dynamic Compressions
Gilberto C. Gómez, Enrique Vázquez-Semadeni, Mohsen Shadmehri +1
(Abridged) We present numerical hydrodynamical simulations of the formation, evolution and gravitational collapse of isothermal molecular cloud cores. A compressive wave is set up…
Gravitational instability of discs with dissipative corona around supermassive black holes
Fazeleh Khajenabi, Mohsen Shadmehri
We study the dynamical structure of a self-gravitating disc with corona around a super-massive black hole. Assuming that the magneto-rotational-instability (MRI) responsible for ge…
On Attractor Mechanism and Entropy Function for Non-extremal Black Holes/Branes
Mohammad R. Garousi, Ahmad Ghodsi
We examine in details the entropy function formalism for non-extremal D3, M2, and M5-branes that their throat approximation is given by Schwarzschild black hole in AdS_{p+2} \times…