نتایج جستجو برای: ast k g frame
تعداد نتایج: 866295 فیلتر نتایج به سال:
In this paper we introduce controlled *-g-frame and *-g-multipliers in Hilbert C*-modules and investigate the properties. We demonstrate that any controlled *-g-frame is equivalent to a *-g-frame and define multipliers for (C,C')- controlled*-g-frames .
The paper deals with transmitter diversity Antenna Selection Techniques (ASTs) for wireless channels utilizing Differential Space-Time Block Codes (DSTBCs). The proposed ASTs tend to maximize the Signal-to-Noise Ratio (SNR) of those channels. Particularly, we propose here the so-called general (M, N ; K) AST/DSTBC scheme for such channels. Then, based on this AST, we propose two modified ASTs w...
Suppose $pi:mathcal{A}rightarrow mathcal{B}$ is a surjective unital $ast$-homomorphism between C*-algebras $mathcal{A}$ and $mathcal{B}$, and $0leq aleq1$ with $ain mathcal{A}$. We give a sufficient condition that ensures there is a proection $pin mathcal{A}$ such that $pi left( pright) =pi left( aright) $. An easy consequence is a result of [L. G. Brown and G. k. Pedersen, C*-algebras of real...
In this paper we introduce and study Besselian $g$-frames. We show that the kernel of associated synthesis operator for a Besselian $g$-frame is finite dimensional. We also introduce $alpha$-dual of a $g$-frame and we get some results when we use the Hilbert-Schmidt norm for the members of a $g$-frame in a finite dimensional Hilbert space.
Little is known about kindergarten students' active school transportation (AST) and stroller/wagon use as sedentary travel devices. The primary objective of this cross-sectional study was to determine the prevalence of kindergarten children arriving to school by active and sedentary modes, including strollers, in Toronto elementary schools and compare to students in kindergarten to grade 6 (K-6...
Quantum homogeneous spaces are noncommutative with quantum group covariance. Their semiclassical counterparts Poisson spaces, which quotient manifolds of Lie groups $M=G/H$ equipped an additional structure $\pi$ is compatible a Poisson-Lie $\Pi$ on $G$. Since the infinitesimal version defines unique bialgebra $\delta$ algebra $\frak g=\mbox{Lie}(G)$, we exploit idea duality in order to study no...
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