in this paper, the magnetohydrodynamic (mhd) boundary layer flow over a nonlinear porous stretching sheet is investigated by employing the homotopy perturbation transform method (hptm) and the pade´ approximation. the numerical solution of the governing non-linear problem is developed. comparison of the present solution is made with the existing solution and excellent agreement is noted. graphi...

In the paper, we make a detailed study on generalized Crewther Relation (GCR) between Adler function ($D$) and Gross-Llewellyn Smith sum rules coefficient ($C^{\rm GLS}$) by using newly suggested single-scale approach of principle maximum conformality (PMC). The resultant GCR is scheme-independent, whose residual scale dependence due to unknown higher-order terms are highly suppressed. Thus pre...