Results 71 to 80 of about 57,073,214 (327)
Researches in MathematicsThe paper considers the problem of analytical continuation of special functions by branched continued fractions. These representations play an important role in approximating of special functions that arise in various applied problems. By improving the
R. Dmytryshyn, C. Cesarano, I.-A. Lutsiv
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Computation, 2019 The logarithmic Colebrook flow friction equation is implicitly given in respect to an unknown flow friction factor. Traditionally, an explicit approximation of the Colebrook equation requires evaluation of computationally demanding transcendental ...
Dejan Brkić, Pavel Praks
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MITF maintains genome stability in nonmelanocyte lineages
Molecular Oncology, EarlyView.MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir +13 more
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On Lp-approximation by Mütz rational functions(Müntz有理函数的加权Lp逼近)
Zhejiang Daxue xuebao. Lixue ban, 2017 考察了加Jacobi权w(x)=xα(1-x)α(α≥0)的Lp空间中Müntz有理函数的逼近问题.利用K-泛函与加权光滑模的等价性给出了逼近阶的估计以及Ditzian-Totik型定理.所得结果将已有文献中的相应结论推广到了加权情形.
WANGJunxia(王军霞) +1 more
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Molecular Oncology, EarlyView.Matched spatial transcriptomics and single‐nuclei RNA‐seq were generated for anaplastic and BRAFV600E papillary thyroid cancers revealing generic and tumor‐specific states occurring in cancer cells and in the tumor microenvironment. In this context, cancer dedifferentiation mirrored organoid maturation through ordered thyroid marker gain/loss ...
Adrien Tourneur +11 more
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On the Distribution of Zeros and Poles of Rational Approximants on Intervals
Abstract and Applied Analysis, 2012 The distribution of zeros and poles of best rational approximants is well understood for the functions 𝑓(𝑥)=|𝑥|𝛼, 𝛼>0. If 𝑓∈𝐶[−1,1] is not holomorphic on [−1,1], the distribution of the zeros of best rational approximants is governed by the equilibrium ...
V. V. Andrievskii +2 more
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The elliptic functions and integrals of the "1/9" problem
, 2000 We describe the functions needed in the determination of the rate of convergence of best L-infinity rational approximation to exp(-x) on [0,infinity) when the degree n of the approximation tends to infinity ("1/9" problem)
Meinguet, Jean +2 more
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Piecewise rational approximation to continuous functions with characteristic singularities [PDF]
, 1998 Let Hvp[a,b] be the class of continuous functions in the interval [a,b], which admit analytic continuation to Hp in the subintervals of a v-subdivition of [a,b].
Illán, J.
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Molecular Oncology, EarlyView.Detecting circulating tumor cells (CTCs) in blood before surgery may help predict outcomes in patients with head and neck squamous cell carcinoma (HNSCC). Here, we show when combined with tumor size and lymph node involvement from routine imaging, CTC status identifies high‐risk patients with poorer survival—offering a simple, minimally invasive tool ...
Susanne Flach +9 more
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Prefractal as the source of new rational approximations of functions with a fractal representation
Наука. Инновации. Технологии, 2022 The Article is devoted to the problem of accelerating the convergence of polynomial and rational approximations of functions. In the theory of approximation of functions often used the idea of reducing the interval change in the argument as a method to ...
Petr Kirillovich Korneev +4 more
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