activity
19972025
most citedConstraints on Perturbative f(R) Gravity via Neutron Stars

223 citations · 645 across the 27 of their papers we have counts for

collaborators

27 papers

astro-ph.CO2025

Growth Index in the CDM model

Cemsinan Deliduman, Furkan Şakir Dilsiz, Selinay Sude Binici

To better distinguish the nature of and tensions, it is necessary to separate the effects of expansion and the growth of structure. The growth index was identified…

astro-ph.CO2025

Testing CDM Model in the Redshift Bins

Furkan Şakir Dilsiz, Cemsinan Deliduman, Selinay Sude Binici

The Hubble crisis is the discrepancy in the values of the Hubble constant inferred from diverse observations in the late and early Universe, being of the order 5. Instead of res…

astro-ph.CO2024

The Ages of the Oldest Astrophysical Objects in an Ellipsoidal Universe

Selinay Sude Binici, Cemsinan Deliduman, Furkan Şakir Dilsiz

James Webb Space Telescope's (JWST) observations since its launch have shown us that there could be very massive and very large galaxies, as well as massive quasars very early in t…

gr-qc2023★ 13 cited

f(R) Gravity in an Ellipsoidal Universe

Cemsinan Deliduman, Oguzhan Kasikci, Vildan Keles Tugyanoglu

We propose a new model of cosmology based on an anisotropic background and a specific theory of gravity. It is shown that field equations of gravity in a Bianchi type…

gr-qc2020★ 37 cited

Spherical and cylindrical solutions in f (T) gravity by Noether Symmetry Approach

Ali Nur Nurbaki, Salvatore Capozziello, Cemsinan Deliduman

We find exact solutions for f (T) teleparallel gravity for the cases of spherically and cylindrically symmetric tetrads. The adopted method is based on the search for Noether symme…

gr-qc2018★ 28 cited

Gravitational Lensing in Weyl Gravity

Oguzhan Kasikci, Cemsinan Deliduman

We calculate the deflection angle of light from a distant source by a galaxy cluster in Weyl's conformal gravity. The general method of calculation is first applied to calculate th…