# Search results for: Nasser Saad

Journal of Computational and Applied Mathematics > 2016 > 308 > C > 301-317

Annalen der Physik > 528 > 3-4 > 321 - 334

The European Physical Journal Plus > 2016 > 131 > 8 > 1-17

*V*

_{m}(

*x*) = -

*U*

_{0}sinh

^{2m}(

*x*/

*d*)/cosh

^{2m+2}(

*x*/

*d*) ,

*m*= 0, 1, 2,... , are constructed. A by-product of this work is the construction of polynomial solutions for the confluent Heun equation along with necessary and sufficient conditions for the existence of such solutions based on the...

Open Physics > 2015 > 13 > 1

^{d}

_{nl}(a, c) of the d-dimensional Schrödinger equation with the Cornell potential V(r) = −a/r + c r, a, c > 0 are analyzed by means of the envelope method and the asymptotic iteration method (AIM). Scaling arguments show that it is suffcient to know E(1, λ), and the envelope method provides analytic bounds for the equivalent complete set of coupling functions λ(E). Meanwhile the...

Mathematical Physics, Analysis and Geometry > 2015 > 18 > 1 > 1-21

Open Physics > 2015 > 13 > 1

^{d}

_{nl}(a, c) of the d-dimensional Schrödinger equation with the Cornell potential V(r) = −a/r + c r, a, c > 0 are analyzed by means of the envelope method and the asymptotic iteration method (AIM). Scaling arguments show that it is suffcient to know E(1, λ), and the envelope method provides analytic bounds for the equivalent complete set of coupling functions λ(E). Meanwhile the...

Applied Mathematics and Computation > 2014 > 226 > Complete > 615-634

The European Physical Journal Plus > 2014 > 129 > 12 > 1-16

*R*. When hard confinement is present the oscillators can be switched off. Exact analytical solutions are found for special parameter sets, and highly accurate numerical solutions...

Annalen der Physik > 525 > 12 > 934 - 943

Open Physics > 2013 > 11 > 3 > 279-290

Open Physics > 2013 > 11 > 3 > 279-290

Central European Journal of Physics > 2013 > 11 > 3 > 279-290

*V*(

*x*) =

*ax*

^{10}+

*bx*

^{8}+

*cx*

^{6}+

*dx*

^{4}+

*ex*

^{2},

*a*> 0 is exactly solvable. By examining the polynomial solutions of certain linear differential equations with polynomial...

Central European Journal of Physics > 2013 > 11 > 1 > 37-48

Open Physics > 2013 > 11 > 1 > 37-48

Open Physics > 2013 > 11 > 1 > 37-48

Optical Review > 2012 > 19 > 4 > 235-237

*I-V*) measurements. The XRD shows that the...

Applied Mathematics and Computation > 2011 > 218 > 3 > 1012-1018

^{μ}+by

^{ν}. In particular, we provide methods for computing this function...

International Journal of Antimicrobial Agents > 2011 > 38 > 3 > 192-196

Radiation Physics and Chemistry > 2011 > 80 > 1 > 11-13

Applied Radiation and Isotopes > 2011 > 69 > 1 > 90-93