نتایج جستجو برای: order centered compact
تعداد نتایج: 1031991 فیلتر نتایج به سال:
PKS 1830-211 is the strongest known radio gravitational lens by almost an order of magnitude and has the potential to provide a measurement of Ho, provided the lensing system can be parameterized. Attempts to identify optical counterparts, to measure redshifts, have so far proved unsuccessful and this has lead to radio and millimetre spectral line observations. We present our discovery of an ab...
We consider tiling dynamical systems and topological conjugacies between them. We prove that the criterion of being finite type is invariant under topological conjugacy. For substitution tiling systems under rather general conditions, including the Penrose and pinwheel systems, we show that substitutions are invertible and that conjugacies are generalized sliding block codes. * Research support...
A third-order compact gas-kinetic scheme is proposed for three-dimensional compressible flow computations. The new based on three key ingredients: the time-accurate gas evolution model interface flux, Hermite weighted essentially nonoscillatory reconstruction, and two-stage temporal discretization. In contrast to Riemann-solver-based methods, due use of flux function can achieve a accuracy with...
We present a new higher-order accurate finite difference explicit jump Immersed Interface Method for solving two-dimensional elliptic problems with singular source and discontinuous coefficients in the irregular region on compact Cartesian mesh. propose strategy discretizing solution at points nine-point stencil such that compactness is maintained throughout whole computational domain. The sche...
In this paper, a compact, planar ultrawideband (UWB) monopole microstrip antenna is proposed which offers dual band notch characteristics with enhanced rejection at frequency bands centered at 3.4GHz and 5.5GHz. To realize enhanced band notched characteristics at 3.4GHz, a pair of filters is incorporated which includes an inverted ‘L’ shaped slot and a twisted ‘J’ shaped slot in the patch eleme...
In this paper we study the concept of Arveson spectrum on locally compact hypergroups and for an important class of compact countable hypergroups . In thiis paper we study the concept of Arveson spectrum on locally compact hypergroups and develop its basic properties for an important class of compact countable hypergroups .
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