arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1503.00325math.CA
收藏

$(s,p)$ -价函数

$(s,p)$-Valent Functions

Omer Friedland, Yosef Yomdin

摘要:

我们引入了$(\mathcal F,p)$ -叶函数的概念。我们集中在我们的调查的情况下,其中$\mathcal F$是一类多项式的次数最多$s$。这些函数,我们称之为$(s,p)$ -价函数,提供了$p$ -价函数的自然推广(参见~ \cite{Ha}).我们提供了一个相当准确的表征$(s,p)$叶函数的泰勒系数,通过“泰勒支配”,并通过线性非平稳递归一致有界系数。我们证明了这类函数的一个“偏差定理”,并将其与具有零点的多项式进行了比较,得到了一个本质上尖锐的Remez型不等式,其思想类似于复一元多项式的\cite{Y3}.最后,在此基础上,我们给出了$(s,p)$ -叶函数的一个Remez型不等式。

英文摘要:

We introduce the notion of $(\mathcal F,p)$-valent functions. We concentrate in our investigation on the case, where $\mathcal F$ is the class of polynomials of degree at most $s$. These functions, which we call $(s,p)$-valent functions, provide a natural generalization of $p$-valent functions (see~\cite{Ha}). We provide a rather accurate characterizing of $(s,p)$-valent functions in terms of their Taylor coefficients, through "Taylor domination", and through linear non-stationary recurrences with uniformly bounded coefficients. We prove a "distortion theorem" for such functions, comparing them with polynomials sharing their zeroes, and obtain an essentially sharp Remez-type inequality in the spirit of~\cite{Y3} for complex polynomials of one variable. Finally, based on these results, we present a Remez-type inequality for $(s,p)$-valent functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑