In this paper, we introduce some inequalities for screen homothetic half lightlike submanifolds of a real space form constant sectional curvature , endowed with semi-symmetric metric connection. Using these inequalities, derive characterizations such submanifolds. Finally, Chen-Ricci are calculated. Morever, the equality cases considered and get results.

We prove a common extension of Bang’s and Kadets’ lemmas for contact pairs, in the spirit Colourful Carathéodory Theorem. also formulate generalized version affine plank problem it under special assumptions. In particular, we obtain generalization theorem. Finally, give applications to problems regarding translative homothetic coverings.

To prevent further increases in energy consumption, the government of Iran commenced energy subsidy reform in 2010. This paper investigates the fuel conservation effects of the reform in Iran using a homothetic translog cost function that provides estimates of the own- and cross-price elasticities of fuel demands. The percentage reduction in fuel demands is estimated using the likely effect of ...

In this study, we define the notion of conformal semi-slant Riemannian maps from almost Hermitian manifolds onto as a generalization submersions. We give examples for type maps. study integrability conditions distributions. addition, apply pluriharmonic to investigate being horizontally homothetic map. Moreover, examine that under which cases, distributions can totally geodesic foliations.

The formalism developed by Fayos and Sopuerta for isometries in vacuum spacetimes is generalised in three ways: to include the case of homotheties, to allow for a tetrad not aligned to the symmetry structure and to allow for a non-normalised tetrad. The new formalism is used to recover results by McIntosh and also applied to the particular cases of Robinson-Trautman and Kundt type N. AMS Classi...