338 citations
- École de Technologie SupérieureCA6 papers
- Guilin University of Electronic TechnologyCN6 papers
- National Research Institute of Astronomy and GeophysicsEG5 papers
- University of JeddahSA4 papers
- Al Madinah International UniversityMY3 papers
- University of Technology MalaysiaMY3 papers
- Jadara UniversityJO2 papers
- National Guard Health AffairsSA2 papers
- Nihon UniversityJP2 papers
- Petra UniversityJO2 papers
- Prince Mohammed bin Abdulaziz HospitalSA2 papers
- Zarqa UniversityJO2 papers
Showing 2022 · gr-qcShow all
3 papers · 2 filters
gr-qc2022★ 29 cited
Cosmographic analysis of a closed bouncing universe with the varying cosmological constant in gravity
Vinod Kumar Bhardwaj, Anirudh Pradhan, Nasr Ahmed +1
Modeling of matter bounce in gravity has been presented with no violation of the null energy condition. Only a closed universe with negative pressure is allowed in good ag…
gr-qc2022★ 4 cited
Some cosmological features of 4D Gauss-Bonnet gravity with varying cosmological constant
Nasr Ahmed, Ajab A. Alfreedi, Alaa A. Alzulaibani
We explore some cosmological features of the newly suggested 4D Gauss-Bonnet gravity through two different models assuming a varying cosmological constant. Observational constraint…
gr-qc2022★ 2 cited
A non-singular closed bouncing universe without violation of null energy condition
Nasr Ahmed, Tarek M. Kamel, Mohamed I Nouh
A matter bouncing entropy-corrected cosmological model has been suggested. The model allows only positive curvature with negative pressure and no violation of the null energy condi…