119 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Al-Azhar UniversityEG3 papers
- Hobart and William Smith CollegesUS3 papers
- Arizona State UniversityUS2 papers
- Tanta UniversityEG2 papers
- University of WashingtonUS2 papers
- Zewail City of Science and TechnologyEG2 papers
- Arcetri Astrophysical ObservatoryIT1 paper
- Cairo UniversityEG1 paper
- California Institute of TechnologyUS1 paper
- Center for Space and HabitabilityCH1 paper
- Consejo Nacional de Investigaciones Científicas y TécnicasAR1 paper
- Fisk UniversityUS1 paper
9 papers · 1 filter
The geodesic structure of BPS one-branes in five dimensions
Tahia F. Dabash, Moataz H. Emam
In this paper, we continue previous work where one-brane spacetimes coupled to the N=2 ungauged five dimensional hypermultiplets were found. We explore their symmetries as well as…
Brane-Worlds and the Calabi-Yau Complex Structure Moduli
Moataz H. Emam, H. H. Salah, Safinaz Salem
In this paper we extend previous work on the relation between the complex structure moduli of the underlying Calabi-Yau manifold in five dimensional supergravity with the time evol…
BPS brane cosmology in N=2 supergravity
Moataz H. Emam
We study the embedding of flat BPS 3-branes in five dimensional N=2 supergravity theory. We derive the branes' dynamical equations as well as general expressions for the hypermulti…
The five dimensional universal hypermultiplet and the cosmological constant problem
Charles A. Canestaro, Moataz H. Emam
We model the universe as a 3-brane embedded in five dimensional spacetime with N=2 supersymmetry. The presence of the scalar fields of the universal hypermultiplet in the bulk resu…
Zero-branes and the symplectic hypermultiplets
Moataz H. Emam
We study the scalar fields of the five-dimensional N=2 hypermultiplets using the method of symplectic covariance developed in previous work. For static spherically symmetric backgr…
Split-complex representation of the universal hypermultiplet
Moataz H. Emam
Split-complex fields usually appear in the context of Euclidean supersymmetry. In this paper, we propose that this can be generalized to the non-Euclidean case and that, in fact, t…
The many symmetries of Calabi-Yau compactifications
Moataz H. Emam
We review the major mathematical concepts involved in the dimensional reduction of D=11 N=1 supergravity theory over a Calabi-Yau manifold with non-trivial complex structure moduli…
Symplectic covariance of the N=2 hypermultiplets
Moataz H. Emam
The main objective of this article is to recast the hypermultiplets sector of five dimensional ungauged N=2 supergravity into a manifestly symplectic-covariant form. We propose tha…
Five dimensional 2-branes and the universal hypermultiplet
Moataz H. Emam
We present a discussion of black 2-branes coupled to the fields of the universal hypermultiplet of ungauged N=2 supergravity theory in five dimensions. Using a general ansatz depen…