نتایج جستجو برای: powers r d
تعداد نتایج: 947437 فیلتر نتایج به سال:
We examine the stochastic parabolic integral equation of convolution type U(t) +A ∫ t 0 k1(t− s)U(s) ds = ∫ t 0 k2(t− s)G(s) dWH(s), t ≥ 0, where U(t) takes values in Lq(O;R) with O a σ-finite measure space, and q ∈ [2,∞). The linear operator A maps D(A) ⊂ Lq(O;R) into Lq(O;R), is nonnegative and admits a bounded H∞-calculus on Lq(O;R). The kernels are powers of t, with k1(t) = 1 Γ(α) t α−1, k2...
You have all heard the criticisms. Big Pharma cannot repair its research and development (R&D) engine. Only the more nimble new enter prises, such as biotech companies, can solve this dilemma and supplant the industry’s dinosaurs. I also subscribed to this idea until I came across an article in Harvard Business Review by Jean-Pierre Garnier, MS, PhD, MBA, former Chief Executive Officer of Glaxo...
lr{indent}فرض کنیم $(r,ma)$ یک حلقه جابه جایی موضعی، $i$ ایده آلی از $r$ و $m$ یک $-r$مدول با تولید متناهی باشد که $ i m eq m$. فرض کنیم $d(-)=hom_r(-,e)$ که در آن $e$ پوشش انژکتیو $r/ ma$ است. indent در این پایان نامه ابتدا ثابت می کنیم که اگر $grade(mathfrak{a},m) geq n$ و برای هر $i >n$، $-i$امین مدول کوهمولوژی موضعی $h_{i}^i (m) $ صفر باشد، آن گاه $h_{...
The three-nucleon system is studied at energies a few hundred keV above the N-d threshold. Measurements of the tensor analyzing powers T 20 and T 21 for p-d elastic scattering at E c.m. = 432 keV are presented together with the corresponding theoretical predictions. The calculations are extended to very low energies since they are useful for extracting the p-d scattering lengths from the experi...
Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted, it is called a right co-$(n,d)$-ring if every right $R$-module is $(n, d)$-projective. $R$...
PURPOSE The purpose of this study was to determine the optimal power value of near addition lenses, which would create the least error in accommodative and vergence responses. METHODS We evaluated accommodative response, phoria, and fixation disparity when the subject viewed through various addition lenses at three working distances for 30 young adults (11 emmetropic, 17 myopic, and 2 hyperop...
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