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- Ashfaque H. Bokhari, Abdul Hamid Kara, Fiazud Din Zaman
- Appl. Math. Lett.
- 2006

A similarity analysis of a nonlinear fin equation has been carried out by M. Pakdemirli and A.Z. Sahin [Similarity analysis of a nonlinear fin equation, Appl. Math. Lett. (2005) (in press)]. Here, we consider a further group theoretic analysis that leads to an alternative set of exact solutions or reduced equations with an emphasis on travelling wave… (More)

- Ferhana Ahmad, Abdul Hamid Kara, Ashfaque H. Bokhari, Fiazud Din Zaman
- Applied Mathematics and Computation
- 2008

- Saeed M. Ali, Ashfaque H. Bokhari, Muhammad Yousuf, Fiazud Din Zaman
- J. Applied Mathematics
- 2014

- F D Zaman, R Al-Khairy
- 1999

We consider the temperature distribution in an infinite plate composed of two dissimilar materials. We suppose that half of the upper surface (y h,-oc < x < 0) satisfies the general boundary condition of the Neu-mann type, while the other half (y h,0 < x < oc) satisfies the general boundary condition of the Dirichlet type. Such a plate is allowed to cool… (More)

- F. D. ZAMAN
- 2000

We consider steady state temperature distribution in a homogeneous rectangular infinite plate the lower part of which is cooled by a fluid flowing at a constant velocity while the upper part satisfies the general mixed boundary conditions. The Wiener-Hopf method has been used to obtain the solution in the infinite series form and some special cases have… (More)

- Fiazud Din Zaman, Khalid Masood, Z. Muhiameed
- Applied Mathematics and Computation
- 2006

- Ashfaque H. Bokhari, Abdul Hamid Kara, Fiazud Din Zaman
- Applied Mathematics and Computation
- 2006

The Fisher equation, which arises in the study of reaction diffusion waves in biology, does not display a high level of symmetry properties. Consequently, only travelling wave solutions are obtainable using the method of invariants. This has a direct bearing on studying perturbed forms of the equation which may arise from considering, e.g., damping or… (More)

- Fiazud Din Zaman, Khalid Masood
- Applied Mathematics and Computation
- 2006

We investigate the direct and inverse problem associated with the torsional waves propagating in a cylinder. We analyse the usual wave equation as well as the damped wave equation and consider the problem of recovering the initial profile from the observations of the final profile. This inverse problem arises when experimental measurements are taken at any… (More)

- Ahmad M. Ahmad, Ashfaque H. Bokhari, Fiazud Din Zaman
- J. Applied Mathematics
- 2012

Noether symmetries provide conservation laws that are admitted by Lagrangians representing physical systems. For partial differential equation possessing Lagrangians these symmetries are obtained by the invariance of the corresponding action integral. In this paper we provide a systematic procedure for determining Noether symmetries and conserved vectors… (More)

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