排序方式: 共有32条查询结果,搜索用时 46 毫秒
1.
E. S. Dubtsov 《Functional Analysis and Its Applications》2003,37(2):86-93
An inner function I in the unit ball BnBnn is said to be weakly outer if the closed subspace I
H
p(B
n) is weakly dense in the Hardy space Hp(B
n), 0
n for all n1. We also investigate inner functions I such that the subspace IHp(B n) is not weakly dense in Hp(B n). 相似文献
2.
E. S. Dubtsov 《Journal of Mathematical Sciences》2005,129(4):3985-3989
With the help of the H2-corona theorem we obtain a sufficient condition for cyclicity in the Bergman space A1 in the ball. Bibliography: 5 titles.__________Translated from Zapiski Nauchnykh Seminarov POMI, Vol. 303, 2003, pp. 102–110. 相似文献
3.
E. S. Dubtsov 《Journal of Mathematical Sciences》2010,166(1):23-30
Let B
n
denote the unit ball in
\mathbbC \mathbb{C}
n
, n ≥ 1. Let K \mathcal{K}
0(n) denote the class of functions defined for z ∈ B
n
as a constant plus the integral of the kernel log(1/(1 −〈z, ζ〉)) against a complex Borel measure on the sphere {ζ ∈
\mathbbC \mathbb{C}
n
,: |ζ| = 1}. Properties of holomorphic functions g such that fg ∈ K \mathcal{K}
0(n) for all f ∈ K \mathcal{K}
0(n) are studied. The extended Cesàro operators are investigated on the spaces K \mathcal{K}
0(n), n ≥ 1. Bibliography: 15 titles. 相似文献
4.
本文利用KDV方程所对应的线性方程解所具有的光滑效应及压缩映像原理,得到了Hirota-Satsuma系统初值问题的局部和整体适定性结果. 相似文献
5.
E. S. Dubtsov 《Journal of Mathematical Sciences》2009,156(5):813-818
Assume that a positive function u satisfies the Darboux equation
in the upper half-space ℝ +
d+1. We study Bloch type conditions which guarantee the following property: for any a ∈ (0, + ∞), the set on which the radial
limit of u is equal to a is large in the sense of the Hausdorff dimension. Bibliography: 6 titles.
Translated from Zapiski Nauchnykh Seminarov POMI, Vol. 355, 2008, pp. 163–172. 相似文献
6.
The vibronic vapour phase photoacoustic spectrum of Br2 in the wavelength region 505–541 nm (19796–18480 cm−1) has been recorded using microphone as well as pump-probe method. Discrete vibronic bands superimposed on a monotonically
increasing continuum background towards the dissociation limit results from the overlapping B
3Π
0u
/+
← X
1Σ
g
/+
and 1Π1u
← X
1Σ
g
/+
electronic transitions. Vibronic bands originating from υ″=0 have been used to estimate the relative rate of non-radiative relaxation as a function of the excited state B
3Π0u
vibrational quantum number υ′. A comparison with the optical absorption spectroscopy of Br2 leads to the identification of three broad spectral regions between 505 and 541 nm (19796 and 18480 cm−1) on the basis of different non-radiative relaxation processes. 相似文献
7.
E. S. Dubtsov 《Journal of Mathematical Sciences》2006,139(2):6403-6405
We construct a little Bloch function that belongs to all Hardy spaces Hp, p < ∞, but not to BMOA in the unit ball of ℂn. Bibliography: 6 titles.
__________
Translated from Zapiski Nauchnykh Seminarov POMI, Vol. 327, 2005, pp. 74–77. 相似文献
8.
E. S. Dubtsov 《Journal of Mathematical Sciences》2012,182(5):630-638
We study bounded and compact weighted composition operators that map into holomorphic Lipschitz spaces. Bibliography: 11 titles. 相似文献
9.
S. V. Pasechnik V. G. Chigrinov D. V. Shmeliova V. A. Tsvetkov V. N. Kremenetsky Liu Zhijian A. V. Dubtsov 《Liquid crystals》2006,33(2):175-185
We present new results of experimental investigations of azimuthal director reorientation dynamics for a nematic liquid crystal on solid substrates. Two types of substrate with weak anchoring were studied: glass/polystyrene and glass/UV-activated dye. Slow and fast relaxation processes were observed in both cases under the action of a strong 'in-plane' electric field. The slow surface reorientation and memory effects were controlled by two parameters: the electric voltage and the excitation time. It was established that the increase of the excitation time results in a slowing of the relaxation of the system to the initial state after turning off the electric field. A phenomenological model of a gliding of easy axes is proposed to explain the slow relaxation process. 相似文献
10.
E. S. Dubtsov 《Journal of Mathematical Sciences》2001,107(4):4002-4021
Let K be a compact space, let X be a closed subspace of C(K), and let
be a positive measure on K. The triple
is said to be regular if, for any positive function
and for any
, there exists a function
such that
on K and
. The case where K is the unit sphere in
and the subspace X is invariant with respect to the unitary group is investigated. Sufficient spectral conditions and a necessary condition for the regularity of a triple are obtained. Connections with compactness of certain Hankel operators and applications to interpolation problems are presented. Bibliography: 16 titles. 相似文献