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- Institute for Research in Fundamental SciencesIR9 papers
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8 papers · 1 filter
Non-commutative effects on gravitational measurements
Majid Karimabadi, S. Aliasghar Alavi, Davood Mahdavian Yekta
The general theory of relativity is currently the accepted theory of gravity and as such, a large repository of test results has been obtained since its inception in 1915. However,…
Propagation of a scalar field with non-minimal coupling in three dimensions: Hawking radiation and Quasinormal modes
Davood Mahdavian Yekta, Morteza Shariat
In this paper we investigate an exact spectrum of quasi normal modes (QNMs) for perturbations of a scalar field coupled non-minimally with the Einstein tensor of an uncharged, non-…
Some results of -frames and their multipliers
Ali Akbar Arefijamaal, Mitra Shamsabadi
K-frames are strongly tools for the reconstruction elements from the range of a bounded linear operator K on a separable Hilbert space H. In this paper, we study some properties of…
Diffraction of a partial temporal coherent beam from a single-slit and a circular aperture
E. Koushki, S. A. Alavi
We generalize the notion of the Franhoufer diffraction from a single slit and a circular aperture to the case of partially temporal coherent and quasimonochromatic light. The probl…
Large Scale Local Online Similarity/Distance Learning Framework based on Passive/Aggressive
Baida Hamdan, Davood Zabihzadeh, Monsefi Reza
Similarity/Distance measures play a key role in many machine learning, pattern recognition, and data mining algorithms, which leads to the emergence of metric learning field. Many…
U-cross Gram matrices and their invertibility
Peter Balazs, Mitra Shamsabadi, Ali Akbar Arefijamaal +1
The Gram matrix is defined for Bessel sequences by combining synthesis with subsequent analysis operators. If different sequences are used and an operator U is inserted we reach so…