نتایج جستجو برای: like space
تعداد نتایج: 1112254 فیلتر نتایج به سال:
We introduce a new class of paraxial optical beams exhibiting discrete-like diffraction patterns reminiscent to those observed in periodic evanescently coupled waveguide lattices. It is demonstrated that such paraxial beams are analytically described in terms of generalized Bessel functions. Such effects are elucidated via pertinent examples.
We extend Penrose’s peeling model for the asymptotic behaviour of solutions to the scalar wave equation at null infinity on asymptotically flat backgrounds, which is well understood for flat space-time, to Schwarzschild and the asymptotically simple space-times of Corvino-Schoen/Chrusciel-Delay. We combine conformal techniques and vector field methods: a naive adaptation of the “Morawetz vector...
Aims: From Lufor’s perspective, space is constructed based on spatial operation, recreation and the space in which recreation takes place. This approach is a descriptive view of the relationship between space from a materialistic point of view and its dominant ideas with its dwellers. In this perspective, humans integrate distinct and indistinct data of space and create map-like mental images f...
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