The equations (x+1)…(x+k)=(y+1)…(y+mk) with m=3,4
نویسندگان
چکیده
منابع مشابه
λ7774 Oxygen Triplet in Open Cluster Dwarfs: Pleiades∗ and M34†
We have undertaken a LTE analysis of the high-excitation 7774 Å O I triplet in high-resolution, moderate signal-to-noise spectra of 15 Pleiades (HET/HRS) and 8 M34 (Keck/HIRES) open cluster dwarfs. Effective temperatures range from 5048 6172 K for the Pleiades sample and from 5290 6130 K for the M34 sample. Relative O abundances have been derived using model atmospheres interpolated from four d...
متن کاملOxygen in Open Cluster Dwarfs: Pleiades and M34
We analyze the high-excitation O i l7774 triplet in high-resolution, moderate signal-to-noise ratio spectra of 15 Pleiades and eight M34 open cluster dwarfs over the effective temperature range of 5048–6172 K. Relative O abundances have been derived using model atmospheres interpolated from four different sets of ATLAS9 grids. In contrast to existing non-LTE (NLTE) predictions, a dramatic incre...
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چکیده ندارد.
determinant of the hankel matrix with binomial entries
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
15 صفحه اولCoupled Integral Equations Approach in the Solution of Luikov Equations with Microwave Effect
The objective of this study is to present a mathematical modeling and solution approach for the drying process of spheroidal solids with the application of microwave in capillary porous media based on the Luikov equations, composed of a system of linear and coupled partial differential equations arising from the energy, mass and pressure balances inside the solid matrix. Additionally, the power...
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ژورنال
عنوان ژورنال: Indagationes Mathematicae
سال: 1991
ISSN: 0019-3577
DOI: 10.1016/0019-3577(91)90034-5