一些调和函数类的Bohr-Rogosinski不等式

本文研究了定义在单位圆盘上的一些复值调和函数子类的Bohr现象。具体来说,利用从属原理、系数不等式和增长定理,我们建立了这些调和函数子类的参数与Bohr-Rogosinski半径的关系,并给出了Bohr-Rogosinski不等式。本文建立的Bohr-Rogosinski不等式所涉及的半径都是最佳的。

三种定义域下Bohr概周期函数与Bochner概周期函数等价性的证明

采用构造法与反证法,针对实数集、整数集,以及时标的不同特点,分别给出了三种定义域下,Bohr概周期函数与Bochner概周期函数等价性的证明。

近Bohr速度129Xeq+离子入射Ta靶发射近红外光谱线

用动能一定的高电荷态^(129)Xe^(q+)(17≤q≤27)离子,分别入射洁净的Ta靶表面,测量中性化的激发态Xe原子从组态5p^(5)(^(2)P°_(3/2))nl退激到组态5p^(5)(^(2)P°_(3/2))ml’过程中辐射的近红外光谱线.实验结果表明:多激发态的空心原子退激发射其特征光谱线,部分典型的跃迁按照阶梯方式退激.Xe原子发射的谱线的单粒子荧光产额和激发的Ta原子发射谱线的单粒子荧光产额随入射离子电荷态的增加而增加,其增加的趋势与入射离子携带的势能随电荷态增加的趋势一致.证明在近Bohr速度的能区,经典过垒模型是成立的.

单位圆内有界解析函数的导函数的新Bohr型定理

本文主要研究了单位圆内解析自映射及其导函数的Bohr不等式,利用新的系数不等式,建立了导函数的三类新Bohr型不等式,并得到了新Bohr型不等式成立的精确半径,该结果比Bappaditya Bhowmik和Nilanjan Das(ar Xiv:1911.06597v1[math.CV],2019.11)的结果更精细.

极化效应对Bohr速度能区O^(5+)离子在低密度氢等离子体中的能损影响

基于HIRFL加速器装置的低能束实验平台,实验测量了1.07 MeV(~66.9 keV/u)高电荷态O^(5+)离子穿过中性氢气和部分电离的低密度氢等离子体靶后的能量损失,观测到等离子体中离子能损减小的新实验现象.分别考虑部分电离等离子体对炮弹离子的电荷屏蔽效应以及靶区原子的极化效应(Barkas修正),重新计算了离子能损,讨论了离子能损减小的可能物理机制.研究结果表明:在部分电离的低密度等离子体中,靶区的原子极化效应将显著影响Bohr速度能区离子的能量损失过程.

THE BOHR-TYPE INEQUALITIES FOR HOLOMORPHIC MAPPINGS WITH A LACUNARY SERIES IN SEVERAL COMPLEX VARIABLES

In this paper,we mainly use the Frechet derivative to extend the Bohr inequality with a lacunary series to the higher-dimensional space,namely,mappings from Unto U(resp.Unto Un).In addition,we discuss whether or not there is a constant term in f,and we obtain two redefined Bohr inequalities in Un.Finally,we redefine the Bohr inequality of the odd and even terms of the analytic function f so as to obtain conclusions for two different higher-dimensional alternating series.

TWO GENERALIZATIONS OF BOHR RADIUS

The purpose of this paper is twofold.First,by using the hyperbolic metric,we establish the Bohr radius for analytic functions from shifted disks containing the unit disk D into convex proper domains of the complex plane.As a consequence,we generalize the Bohr radius of Evdoridis,Ponnusamy and Rasila based on geometric idea.By introducing an alternative multidimensional Bohr radius,the second purpose is to obtain the Bohr radius of higher dimensions for Carathéodory families in the unit ball B of a complex Banach space X.Notice that when B is the unit ball of the complex Hilbert space X,we show that the constant 1/3 is the Bohr radius for normalized convex mappings of B,which generalizes the result of convex functions on D.

平面带形区域上一类解析函数的Bohr现象

研究平面带形区域S={z=x+iy,C:—1<x<1}上一类解析函数,建立此类解析函数系数估计.利用该估计,考虑这类解析函数的Bohr现象,获得其解析函数的Bohr半径及两个改进版的Bohr不等式.

一类解析函数的Bohr定理

定义单位开圆盘D内的一个解析函数类Pα(D)=f∈A(D):Re f(z)/z≥α(0<α≤1),给出其增长和掩盖定理.作为应用,得到Pα(D)上的Bohr半径r 0.特别地,当α=1/2时,r 0=1/3,推广了凸函数的Bohr半径.

Bohr哈密顿量的新推导

利用李政道先生的正则量子化程序 ,给出了一个新的方法导出了Bohr哈密顿量 ,并给出了转动算符和转动惯量的明显表达式。

周期型的Bohr不等式

利用文献[1]中非对称逼近的方法得到了周期型Bohr不等式.

关于算子形式的Bohr不等式的推广

采用算子论中的方法和技巧,研究了Bohr不等式的有界线性算子形式的推广,并且给出一些算子不等式,这样对文[4-5]中的结果进行了推广.进一步研究了Bohr不等式在算子范数上的性质,推广了文[6]中的相关结果.

用对应原理导出氢原子量子化能量、量子化电子轨道以及Bohr稳定轨道量子化条件

用对应原理导出了氢原子量子化能量、量子化电子轨道以及Bohr稳定轨道量子化条件 (角动量量子化条件 )

The Quantum Condition That Should Have Been Assumed by Bohr When Deriving the Energy Levels of a Hydrogen Atom

Bohr assumed a quantum condition when deriving the energy levels of a hydrogen atom. This famous quantum condition was not derived logically, but it beautifully explained the energy levels of the hydrogen atom. Therefore, Bohr’s quantum condition was accepted by physicists. However, the energy levels predicted by the eventually completed quantum mechanics do not match perfectly with the predictions of Bohr. For this reason, it cannot be said that Bohr’s quantum condition is a perfectly correct assumption. Since the mass of an electron which moves inside a hydrogen atom varies, Bohr’s quantum condition must be revised. However, the newly derived relativistic quantum condition is too complex to be assumed at the beginning. The velocity of an electron in a hydrogen atom is known as the Bohr velocity. This velocity can be derived from the formula for energy levels derived by Bohr. The velocity v of an electron including the principal quantum number n is given by αc/n. This paper elucidates the fact that this formula is built into Bohr’s quantum condition. It is also concluded in this paper that it is precisely this velocity formula that is the quantum condition that should have been assumed in the first place by Bohr. From Bohr’s quantum condition, it is impossible to derive the relativistic energy levels of a hydrogen atom, but they can be derived from the new quantum condition. This paper proposes raising the status of the previously-known Bohr velocity formula.

关于C~*-代数中Bohr不等式的一个注记（英文）

利用C*-代数到B(H)中的等距*-表示,研究C*-代数中的Bohr不等式,得到了4个推广的Bohr不等式成立的一些充分必要条件1.主要结论如下:设p,q∈R^+,且满足1/p+1/q=1,则A,B∈S(S为有单位元的C*-代数),|A-B|~2+|(1-p)A-B|~2≤p|A|~2+q|B|~2成立当且仅当p≤2;设α,β,u,v∈R,p,q∈R^+,则|αA+βB|~2+|uA+vB|~2≤p|A|~2+q|B|~2成立当且仅当p≥α~2+u^2,q≥β~2+v^2且(p-(α~2+u^2))(q-(β~2+v^2))≥(αβ+uv)~2;设a,b∈R^+,c∈C,则A,B∈S,a|A|~2+b|B|~2+cA*B+cB*A≥0成立当且仅当ab≥|c|2;设α,β∈R,x,y是正数,则A,B∈S,|αA+βB|~2≤x|A|~2+y|B|~2成立,当且仅当x≥α~2,y≥β~2且(x-α~2)(y-β)≥α~2β~2.

一些带有参数的Bohr类型不等式

对于有界解析函数类,给出了一些带有一个参数的Bohr类型不等式,主要利用Schwarz-Pick引理估计出对应的Bohr半径。推广了原有的一些Bohr类型不等式,所有的结果都是最佳的。

半空间上的Bohr型不等式

研究半空间P={z∈C:Re(z)>-1}■D上的Bohr型不等式,建立无界单连通域P上解析函数族的Bohr半径.将解析函数族的Bohr型不等式推广到调和映射的情形,得到调和映射上的Bohr型不等式.

用Hulthen势解Bohr Hamiltonian

在解Bohr Hamiltonian的过程中出现了很多种方法,且有很多在最后都是用不同的势来得到不同的解析解,典型的有Coulomb-like和Kratzer-like势、Linear势、Davidson势.除此之外,还有Bohr sHarmonic-Oscillator解法、Wilets and Jean解法、Elliott-Evans-Park s解法等.这些解法都给出了与实验室比较接近的光谱,但其中有一个普遍现象:很多最后的解析能谱都比实验能谱低.在该文中用Hulthen势来作出它的修正能谱,以更好地与实验值接近.最后,用240U和240Pu作为例子来进行比较.

解析函数的Bohr型半径估计

引进参数p∈(0,∞),探讨单位圆盘到自身上解析函数的Bohr型不等式.运用有界解析函数的偏差定理和系数估计,推广经典的Bohr定理和Paulsen等得到的相应结果,且半径估计值都是精确的.

Bohr's Inequality on the Unit Ball B^n

Bohr's type inequalities are studied in this paper: if f is a holomorphic mapping from the unit ball B^n to B^n, f(0)=p, then we have sum from k=0 to∞|Dφ_P(P)[D^kf(0)(z^k)]|／k!||Dφ_P(P)||＜1 for|z|＜max{1／2+|P|,(1-|p|)／2^(1／2)andφ_P∈Aut(B^n) such thatφ_(p)=0. As corollaries of the above estimate, we obtain some sharp Bohr's type modulus inequalities. In particular, when n=1 and |P|→1, then our theorem reduces to a classical result of Bohr.