Hacettepe Journal of Mathematics and Statistics
95-100
ideal topological space, regular open set, $R$-hyperconnected, $\Gamma$-resolvable, regular $\Gamma$-irresolbable, $\mathcal{I}_R$-dense
$\beta$-Menger and $\beta$-Hurewicz spaces
Hacettepe Journal of Mathematics and Statistics
Bi-slant $\xi^{\perp}$-Riemannian submersions
Hacettepe Journal of Mathematics and Statistics
Perfect fluid spacetimes, Gray's decomposition and $f(\mathcal{R}, {T})$-gravity