668 citations
- Institute for Research in Fundamental SciencesIR108 papers
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65 papers · 1 filter
Gravitational instability of filamentary molecular clouds, including ambipolar diffusion; Non-isothermal filament
Mohammad Hosseinirad, Shahram Abbassi, Mahmood Roshan +1
Recent observations of the filamentary molecular clouds show that their properties deviate from the isothermal equation of state. Theoretical investigations proposed that the logat…
Certain functors of nilpotent Lie algebra with the derived subalgebra of dimension two
Farngis Johari, Peyman Niroomand
By considering the nilpotent Lie algebra with the derived subalgebra of dimension , we compute some functors include the Schur multiplier, the exterior square and the tensor sq…
-nilpotent multiplier and -capability of the direct sum of Lie algebras
Farangis Johari, Peyman Niroomand, Mohsen Parvizi
In this paper, we determine the behavior of the -nilpotent multiplier of Lie algebras with respect to the direct sums. Then we give some results on the -capability of the dir…
The effects of toroidal magnetic field on the vertical structure of hot accretion flows
Fatemeh Zahra Zeraatgari, Amin Mosallanezhad, Shahram Abbassi +1
We solved the set of two-dimensional magnetohydrodynamic (MHD) equations for optically thin black hole accretion flows incorporating toroidal component of magnetic field. Following…
QCD analysis of leading-neutron production at HERA: Determination of neutron fracture functions
Samira Shoeibi, F. Taghavi-Shahri, Kurosh Javidan
The last two decades have seen a growing trend towards the experimental efforts at the electron-proton collider HERA in which have collected high precision data on the spectrum of…
Capable Lie algebras with the derived subalgebra of dimension two over an arbitrary field
Peyman Niroomand, Farangis Johari, Mohsen Parvizi
In this paper, we classify all capable nilpotent Lie algebras with the derived subalgebra of dimension 2 over an arbitrary field. Moreover, the explicit structure of such Lie algeb…