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利用K-泛函研究了修正的Baskakov型算子的Stechin-Marchaud型不等式,由此不等式,我们得到了关于ω2φλ的逆结果. 相似文献
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Baskakov-Durrmeyer型算子同时逼近的强逆不等式 总被引:6,自引:0,他引:6
本文对Baskakov-Durrmeyer型算子Mn(f,x)证明了,当1<p∞时,存在某一正数m,使得ω2φf(2r),1npM(‖M(2r)nf-f(2r)‖p+‖M(2r)mnf-f(2r)‖p+1n‖f(2r)‖p,φ2(x)=x(1+cx) 相似文献
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Photoluminescence (PL) and infrared transmission spectra are used to characterize In-doped Gd0.9Zn0.1 Te (GdZnTe:In).The PL spectrum reveals that there are two other strong emissions situated at 1.54 eV and 1.62 eV as well as the near band edge emission.This indicates that the doped In can lead to two donor levels of 0.12eV and 0.04eV in the CdZnTe band construction,respectively.The IR transmission spectra show that when the wavenumber is larger than 1000cm^-1,the CdZnTe:In was almost opaque to the IR emission.Then its IR transmission rapidly increases to 52% when the wavenumber is decreased to 350cm^-1 and then holds constant.This confirms the existence of the donor level of 0.12 eV. 相似文献
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引入K-泛函K(f,t)n对Szász-Durrmeyer算子证明了其强逆不等式,推广了此算子关于ω~(2φ~λ)(f,t)(0≤λ≤1)的逆结果. 相似文献
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对比了CZT晶片经腐蚀与钝化表面处理的PL谱,结果表明NH4F/H2O2作为CZT晶体表面钝化剂,钝化后CZT晶体表面陷阱态密度减小到最低程度,同时减小了与Cd空位复合有关的深能级杂质浓度。用Agilent 4339B高阻仪进行CZT晶片I-V特性测试以及Agilent 4294A高精度阻抗分析仪进行CZT晶片的C-V特性测试,结果表明钝化均能不同程度提高Au/p-CZT接触的势垒高度,减小了漏电流。主要原因是在CZT表面钝化生成的TeO2氧化层增加接触势垒高度,并减小了电荷因隧道效应而穿过氧化层的几率。 相似文献
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引入K-泛函K(f,t)n对Szász-Durrmeyer算子证明了其强逆不等式,推广了此算子关于ω2ψλ(f,t)(0≤λ≤1)的逆结果. 相似文献
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应用集对分析理论对社会或军事上相互对立的两方及多方提出了对策方程,并根据对策方程推导出了两方及多方共存的最优条件. 相似文献
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In this paper,we obtain the strong converse inequality for Szász operators with K-functional by introducing a new K-functional of the form Kαλ(f,t2) = infg∈C2λ{‖f-g‖0 t2‖g‖2}(0≤λ≤1,0<α<2),where ‖·‖0,‖·‖2,C2λ are defined in the paper.As for its applications,we have extended some results before this paper. 相似文献