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Start Over Coverage 159-171

1. A new characterization of ${\rm RBMO}(\mu )$ by John-Strömberg sharp maximal functions

Creator:
Hu, Guoen, Yang, Dachun, and Yang, Dongyong
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
non-doubling measure, $\mathop{\rm RBMO}(\mu )$, and sharp maximal function
Language:
English
Description:
Let $\mu $ be a nonnegative Radon measure on ${{\mathbb R}^d}$ which only satisfies $\mu (B(x, r))\le C_0r^n$ for all $x\in {{\mathbb R}^d}$, $r>0$, with some fixed constants $C_0>0$ and $n\in (0,d].$ In this paper, a new characterization for the space $\mathop{\rm RBMO}(\mu )$ of Tolsa in terms of the John-Strömberg sharp maximal function is established.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. Boundedness of Hardy-Littlewood maximal operator on block spaces with variable exponent

Creator:
Cheung, Ka Luen and Ho, Kwok-Pun
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
block space, variable exponent analysis, and Hardy-Littlewood maximal operator
Language:
English
Description:
The family of block spaces with variable exponents is introduced. We obtain some fundamental properties of the family of block spaces with variable exponents. They are Banach lattices and they are generalizations of the Lebesgue spaces with variable exponents. Moreover, the block space with variable exponents is a pre-dual of the corresponding Morrey space with variable exponents. The main result of this paper is on the boundedness of the Hardy-Littlewood maximal operator on the block space with variable exponents. We find that the Hardy-Littlewood maximal operator is bounded on the block space with variable exponents whenever the Hardy-Littlewood maximal operator is bounded on the corresponding Lebesgue space with variable exponents.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

4. Salinity and drought stresses are amplified by high irradiance in sorghum

Creator:
Masojídek, J. and Hall, D. O.
Format:
print
Type:
model:internalpart and TEXT
Language:
Multiple languages
Description:
The effects of drought oř salinity (NaCl) stress in combination wifh high irradiance (HI) were studied under the laboratory conditions, using young plants of a drought- resistant cultivar of Sorghum bicolor in order to understand leaf observed effects at the chloroplast level. Water potential and net photosynthetic rate (P^j) in leaves were analyzed in parallel with photosynthetic electron transport, electron spin resonance and chlorophyll-protein (CP) composition in chloroplasts isolated from these stressed leaves. The H1 slightly increased and electron transport activities of the irrigated plants, whereas drougbt and salinity stresses (leaf water potential lower than -1 MPa) decreased these activities. Under the combined effects of drought or salinity stress (200 mM NaCl) with HI the leaf Pjj was severely inhibited, as were photosystem (PS) 2 chloroplast electron transport activities (but not PS 1 activity). NaCl concentrations lower than 100 mM stimulated the electron transport activities in non-photoinhibited plants. A degradation of the PS 2 CFs and a decrease of ESR signál n were seen in the drought and salinity stressed plants afler HI.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public