The Invariant Subspace Problem for Separable Hilbert Spaces

Dr. Khalil Roshdi is a full professor at the University of Jordan. He received his B.Sc. from Kuwait University in 1973 and his M.Sc. and Ph.D. from McGill University in 1976 and 1978, respectively. From 1977 to 1979, he was a lecturer at McGill University. From 1979 to 1990, he worked at the Kuwait University as an Assistant Professor (1979–1983), an Associate Professor (1983–1988), and a Full Professor (1988–1990). Then, he was a full professor at the Bahrain University from 1991 to 1996, at the Woman University for Women from 1996 to 1997, and at the Jordan University for Science and Technology from 1997 to 1998. He joined the University of Jordan as a full professor in 1998. In 2003, he was the Dean of Scientific Research at the Princes Sommaya University. He was awarded the Shuman Prize for Young Arab Mathematicians in 1988 and the Islamic Organization for Science Prize in 1997. His research interests mainly include Atom Solutions of Partial Differential Equation, Fractional Derivatives, Best Approximation in Banach Spaces, Remotality in Banach Spaces, Geometry of Banach Spaces, Invariant Subspaces Problem, Functional Analysis, and Harmonic Analysis.

Dr. Ma’mon Abu Hammad is an associate professor of Statistics at the Department of Mathematics, Al-Zaytoonah University of Jordan. He received his B.A. in Mathematics from Mutah University in 1992 and his M.Sc. and Ph.D. in Mathematics/Statistics from the University of Jordan in 2004 and 2008, respectively. From 2001 to 2015, he was the director of the private office of HRH Princess Alia bint Al Hussein. From 2008 to 2018, he was a part-time lecturer at the University of Jordan. From 2011 to 2012, he was a part-time lecturer at the Princess Sumaya University for Technology. He is a member of the supreme committee for management of the abattoir sector in Jordan assigned by the Prime Ministry. His main teaching and research interests include mathematical analytical methods, information theory, modeling and simulation, dynamical systems, fuzzy equations, and fractional differential equations. He has published several research articles in international journals of mathematics.