An x ∈ S ( w ) is said to be an essential point of S ( w ) if, for any open neighborhood N ( x ) of x in X, there is a positive δ such that N ( x ) ∩ S ( w ′ ) ≠ ∅ for any w ′ ∈ M with ρ ( w, w ′ ) < δ. w is said to be essential if all x ∈ S ( w ) is essential.
(1) If (e(E)={y_{0}}) is a singleton set and an essential set with respect to (rho_{s}), then the point (y_{0}) is said to be an essential point with respect to (rho_{s}).
In this study, we needed to focus on the effects of ecological and energy-efficiency processes in creating vernacular habitats and the selection of optimal building systems and materials in this part of the world, which can be an essential point for sustainable environmental building processes in the future.
An ( x, y ) ∈ F ( q ) is said to be an essential point of F ( q ) if, for any open neighborhood N ( x, y ) of ( x, y ) in X × Y, there is a positive δ such that N ( x, y ) ∩ F ( q ′ ) ≠ ∅ for any q ′ ∈ M with ρ ( q, q ′ ) < δ. q is said to be essential if each ( x, y ) ∈ F ( q ) is essential.
An ( x, y ) ∈ Λ ( q ) is said to be an essential point of Λ ( q ) if, for any open neighborhood N ( x, y ) of ( x, y ) in X × Y, there is a positive δ such that N ( x, y ) ∩ Λ ( q ′ ) ≠ ∅ for any q ′ ∈ M with ρ ( q, q ′ ) < δ. q is said to be essential if each ( x, y ) ∈ Λ ( q ) is essential.
There is an essential point here for Western information programs like the Voice of America that are directed to Muslims.
Her fears about going into town may be justified, and yet there was something fantastical about her insistent description of the K.L.A. as an illegal organization — as though this were an essential point of local history that I might miss.
This is an essential point to consider before performing myocardial T1 maps, because it directly influences the accuracy and reproducibility of the final T1 measurements.
The anchoring between a metallic component and a concrete block is an essential point in stability and durability of the structure.
