A new upper bound for the real structured singular value. - S. K. Gungah; Umar Malik; Imad M. Jaimoukha; George D. Halikias (CDC, 2001)

On the gap between the quadratic integer programming problem and its semidefinite relaxation. - Umar Malik; Imad M. Jaimoukha; G. D. Halikias; S. K. Gungah (Math. Program., 2006)

On the Gap Between the Complex Structured Singular Value and Its Convex Upper Bound. - Imad M. Jaimoukha; G. D. Halikias; Umar Malik; S. K. Gungah (SIAM J. Control. Optim., 2006)

New bounds on the unconstrained quadratic integer programming problem. - G. D. Halikias; Imad M. Jaimoukha; Umar Malik; S. K. Gungah (J. Glob. Optim., 2007)

Analysis Of Cost Prediction In Medical Insurance Using Modern Regression Models. - Haitham M. Alzoubi; Nizar Sahawneh; Ahmad Qasim AlHamad; Umar Malik; Ameer Majid; Ayesha Atta (ICCR, 2022)