**Journal Papers**

Mahwish Batool and Ibrar Hussain, "Null and Time-like Geodesics of the Schwarzschild Black Hole with String Cloud Background", *International Journal of Modern Physics D*, Vol. 26, No. 4, pp. 1741005, 2017.

I Hussain, S Ali, "Marginally Stable Circular Orbits in the Schwarzschild Black Hole Surrounded by Quintessence Matter", *European Physical Journal Plus*, Vol. 131, pp. 275, Aug, 2016.

S. Ali, I. Hussain, "A study of positive energy condition in Bianchi V spacetimes via Noether symmetries", *Eur. Phys. J. C*, Vol. 76, No. 63, Feb, 2016.

Ibrar Hussain, Mubasher Jamil, Bushra Majeed, "A Slowly Rotating Black Hole in Horava-Lifshitz Gravity and a 3+1 Dimensional Topological Black Hole: Motion of Particles and BSW Mechanism", *Int. J. Theo. Phys.*, Vol. 54, No. 5, pp. 1567, May, 2015.

I. Hussain, S. Ali, "Effect of a Quintessence Model on the Energy of the Reissner-Nordstrom Black Hole", *Gen. Relativ. Gravit.*, Vol. 47, No. 3, pp. 34, Mar, 2015.

Saqib Hussain, Ibrar Hussain, Mubasher jamil, "Dynamics of a charged particle around a slowly rotating Kerr black hole immersed in magnetic field", *The European Physical Journal C*, Vol. 74, pp. 3210, Dec, 2014.

Ibrar Hussain, "Energy of a Slowly-Rotating Black hole in The Horava-Lifshitz Gravity by Using Approximate Lie Symmetry Methods", *Journal of the Korean Physical Society*, Vol. 65, No. 6, pp. 879, Sep, 2014.

Ibrar Hussain, Ujjal Debnath Surajit Chattopadhyay, Mubasher Jamil, and Ratbay Myrzakulov , "Generalized Second Law of Thermodynamics for FRW Cosmology with Power Law Entropy Correction", *Euro. Phys. J. C*, Vol. 72, pp. 1875, 2012.

Ibrar Hussain, "Collision Energy in the Centre-of-Mass Frame for Rotating and Accelerating Black Holes", *Mod. Phys. Lett. A*, Vol. 27, pp. 1250017, 2012.

Ibrar Hussain, " Centre-of-Mass Energy of Colliding Particles in the Background of Charged Black Strings", *J. Phys. Conf. Ser.,*, Vol. 354, pp. 012007, 2012.

Ibrar Hussain, "Black Holes and Collision Energy in the Centre-of-Mass Frame", *Mod. Phys. Lett. A*, Vol. 27, pp. 1250068, 2012.

Ibrar Hussain, F. M. mahomed, "Noether Gauge Symmetry Approach in Gauss-Bonnet Dilatonic Theory of Gravity", *Cand. J. Phys.*, Vol. 90, pp. 467, 2012.

Ibrar Hussain , "Cosmic Evolution in Brans-Dicke Chameleon Cosmology", * Euro. Phys. J. Plus., *, Vol. 126, pp. 80, Sep, 2011.

Ibrar Hussain, Mubasher Jamil and F. M. Mahomed, "Noether Gauge Symmetry Approach in f(R) Gravity", *Astrophys. Spa. Sci. *, Vol. 337, pp. 373, Sep, 2011.

Ibrar Hussain, Jamil M M. Umer Farooq, "Thermodynamics of Phantom Energy in the Presence of a Reissner-Nordstrom Black Hole ", * Astrophys. Spa. Sci. *, Vol. 335, pp. 339, Jun, 2011.

I. Hussain, "Energy in the spacetime field of the charged rotating BTZ black hole via approximate Lie symmetries ", *Physica Scripta*, Vol. 83, No. 5, pp. 055002, May, 2011.

Ibrar Hussain, "Energy of the Kerr-Newman-AdS Black Hole by Using Approximate Lie Symmetries ", *Gen. Rel. Grav*, pp. DOI 10.1007/s10714-010-0961-0, Apr, 2011.

Feroze T and Ibrar Hussain, "Noether Symmetries and Conserved Quantities for Spaces with a Section of Zero Crvature", *J Geom. and Phys.*, Vol. 61, No. 3, pp. 658, Mar, 2011.

M Jamil and Ibrar Hussain, "Accretion of Phantom Energy and Generalized Second Law of Thermodynamics for Einstein-Maxwell-Gauss-Bonnet Black Hole", *Int. J. Theo. Phys.*, Vol. 50, No. 2, pp. 465, Feb, 2011.

Ibrar Hussain, F. M. Mahomed, Asghar Qadir, "Approximate Partial Noether Operators of the Schwarzschild Spacetime", *J. Nonlinear. Math. Phys*, Vol. 17, pp. 13, Mar, 2010.

Ibrar Hussain, "A Note on Noether Symmetries and Conformal Killing Vectors", *Gen. Rel. Grav*, Vol. 42, No. 08, pp. 1791, Aug, 2009.

Ibrar Hussain, U Camci, Kucukakca, "Curvature and Weyl Collineations of Bianchi V Spacetimes", *J. Geom and Phys.*, Vol. 59, No. 11, pp. 1476, Jul, 2009.

Ibrar Hussain, F. M. Mahomed, Asghar Qadir, "Proposal for Determining the Energy Content of Gravitational Waves by Using Approximate Symmetries of Differential Equations", *Phys. Rev. D*, Vol. 79, pp. 125014, Jun, 2009.

Ibrar Hussain, F. M. Mahomed, Asghar Qadir, "Approximate Noether Symmetries of the Geodesic Equations for the Charged- Kerr Spacetime and Re-scaling of Energy", *Gen. Rel. Grav*, Vol. 41, No. 10, pp. 2399, Feb, 2009.

Ibrar Hussain, F. M. Mahomed, Asghar Qadir, "Second-order Approximate Symmetries of the Geodesic Equations for the Reissner-Nordstrom Metric and Re-scaling of Energy of a Test Particle", *SIGMA*, Vol. 3, pp. 115, Dec, 2007.

Ibrar Hussain, Asghar Qadir, "Approximate Symmetries of Lagrangians for Plane Symmetric Gravitational Wave-like Spacetimes ", *Nuovo Cimento B*, Vol. 122, pp. 593, Mar, 2007.

Ibrar Hussain, Asghar Qadir, Khalid Saifullah, "Weyl Collineations that are not Curvature Collineations", *Int. J. Mod. Phys. D*, Vol. 14, pp. 1431, Aug, 2005.

**Conference Papers**

I. Hussain and S. Ali, "Noether Symmetries and f(R) Theory of Gravity", *Proceedings of the 13th Marcel Grossmann Meeting*, pp. 1313, Feb, 2015, Sweden.

I. Hussain, "Connection between Lie Symmetries, Noether Symmetries and Collinations", *Proceedings of the Int. Conf. Relativ. Astrophys.*, pp. 86, 2015, Pakistan.

Ibrar Hussain, "Noether Symmetries of geodesic Equations in Spacetimes", *Proceedings of the 13th Regional conference on Mathematical Physics*, pp. , Nov, 2012, Antaya Turkey.

Asghar Qadir, Ibrar Hussain, "Approximate Symmetries and the Energy Content of Spacetimes", *Proceedings of the 12 Marcel Grossman Meeting *, pp. 1868, Feb, 2012, Paris France.

**Books/Chapters Published**

[Book]Ibrar Hussain, "Definition of Energy in General Relativity via Approximate Symmetries", *LAP Lambert Academic Publishing*, ISBN 978-3848423927 , Mar, 2012.