219 citations
- Institute for Research in Fundamental SciencesIR60 papers
- Institute for Advanced Studies in Basic SciencesIR34 papers
- Sharif University of TechnologyIR19 papers
- University of TehranIR18 papers
- Shahid Beheshti UniversityIR11 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Keele UniversityGB7 papers
- Chinese Academy of SciencesCN6 papers
- International Center for Relativistic AstrophysicsIT6 papers
- Islamic Azad University North Tehran BranchIR6 papers
- University of MazandaranIR6 papers
- Collurania Teramo ObservatoryIT5 papers
10 papers · 1 filter
Central force problem in space with SU(2) Poisson structure
Taraneh Andalib, Amir H. Fatollahi
The central force problem is considered in a three dimensional space in which the Poisson bracket among the spatial coordinates is the one by the SU(2) Lie algebra. It is shown tha…
Pretty cleanness and filter-regular sequences
Somayeh Bandari, Kamran Divaani-Aazar, Ali Soleyman Jahan
Let be a field and . Let be a monomial ideal of and be monomials in which form a filter-regular sequence on . We show t…
Almost complete intersections and Stanley's conjecture
Somayeh Bandari, Kamran Divaani-Aazar, Ali Soleyman Jahan
Let be a field and a monomial ideal of the polynomial ring . We show that if either: 1) is almost complete intersection, 2) can be generated b…
A Simple Procedure to Extend the Gauss Method of Determining Orbital Parameters from Three to N Points
Taghi Mirtorabi
A simple procedure is developed to determine orbital elements of an object orbiting in a central force field which contribute more than three independent celestial positions. By ma…
Gorenstein injective envelopes of Artinian modules
Massoumeh Nikkhah Babaei, Kamran Divaani-Aazar
Let R be a commutative Noetherian ring and A an Artinian R-module. We prove that if A has finite Gorenstein injective dimension, then A possesses a Gorenstein injective envelope wh…
Entropy as a measure of diffusion
Amir Aghamohammadi, Amir H. Fatollahi, Mohammad Khorrami +1
The time variation of entropy, as an alternative to the variance, is proposed as a measure of the diffusion rate. It is shown that for linear and time-translationally invariant sys…