Hacettepe Journal of Mathematics and Statistics
8-19
Riemannian submersion, Sasakian manifold, Bi-slant $\xi^{\perp}$- Riemannian submersion
$\beta$-Menger and $\beta$-Hurewicz spaces
Hacettepe Journal of Mathematics and Statistics
Regular $\Gamma$-irresolvable spaces
Hacettepe Journal of Mathematics and Statistics
Perfect fluid spacetimes, Gray's decomposition and $f(\mathcal{R}, {T})$-gravity