Boundary conditions for general ordinary differential operators and their adjoints WDESE Ibrahim
Proceedings of the Royal Society of Edinburgh A 114, 99-117, 1990
44 1990 Singular non-selfadjoint differential operators SE Ibrahim
Proceeding of the Royal Society of Edinburgh, A 124, 825-841, 1994
18 1994 The spectra of well-posed operators SE Ibrahim
Proceedings of the Royal Society of Edinburgh Section A: Mathematics 125 (6 …, 1995
13 1995 Problems associated with differential operators SE Ibrahim
Ph. D. Degree 1990, 1990
12 1990 On the essential spectra of general differential operators SES IBRAHIM
Italian journal of pure and applied mathematics, 45-67, 2001
10 2001 Boundedness and L2-boundedness of solutions of general quasi-integro differential equations SE Ibrahim
International Journal of Applied Mathematics 2 (6), 689-711, 2000
10 * 2000 Non Self-Adjoint Quasi-Differential Operators with Discrete Spectra SE Ibrahim
The Rocky Mountain Journal of Mathematics 25 (3), 1053-1078, 1995
10 1995 Boundedness for solutions of general ordinary quasi-differential equations SE Ibrahim
Journal of Egyptian Mathematical Society 2, 33-44, 1994
10 1994 The point spectra and regularity fields of products quasi-differential operators SE Ibrahim
Indian Journal of Pure and Applied Mathematics 31 (6), 647-665, 2000
9 * 2000 On the essential spectra of regularly solvable operators in the direct sum spaces SES Ibrahim
The Rocky Mountain journal of mathematics, 609-644, 1999
9 1999 On the product of self-adjoint Sturm-Liouville differential operators in direct sum spaces SES Ibrahim
Journal of Informatics and Mathematical Sciences 3 (1), 93-109, 2012
8 * 2012 On boundary conditions for Sturm-Liouville differential operators in the direct sum spaces SES Ibrahim
The Rocky Mountain Journal of Mathematics, 873-892, 1999
6 1999 The point spectra and regularity fields of non-selfadjoint quasi-differential operators SE Ibrahim
Rocky Mountain Journal of Mathematics 25 (2), 685-699, 1995
6 1995 On the boundary conditions for products of general quasi-differential operators in direct sum spaces SE Ibrahim
International Journal of Applied Mathematics 22 (1), 55-87, 2009
5 2009 On the -boundedness of solutions for products of quasi-integro differential equations SES Ibrahim
International Journal of Mathematics and Mathematical Sciences 2003, 639-659, 2003
4 2003 On-quasi-derivatives for solutions of perturbed general quasi-differential equations SE Ibrahim
Czechoslovak Mathematical Journal 49 (4), 877-890, 1999
4 1999 On the integrable solutions of product integro differential equations in direct sum spaces SE Ibrahim
Journal of Mathematical Sciences: Advances and Applications 27, 11-41, 2014
3 * 2014 On the essential spectra for products of the general quasi-differential operators and their adjoints SE Ibrahim
International Journal of Pure and Applied Mathematics 70 (5), 659-689, 2011
3 2011 On the spectra of non-selfadjoint differential operators and their adjoints in direct sum spaces SES Ibrahim
International Journal of Mathematics and Mathematical Sciences 2003, 557-574, 2003
3 2003 Boundary conditions for regularly solvable operators in direct sum spaces E Ibrahim
Indian Journal of Pure and Applied Mathematics. 24 (11), 665-689, 1993
3 1993