Malaksiano M. The extremal properties of the Gehring and Muckenhoupt function classes

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0403U002061

Applicant for

Specialization

  • 01.01.01 - Математичний аналіз

06-06-2003

Specialized Academic Board

К 41.051.05

Essay

The sharp bounds of exponents, for which inclusions of Muckenhoupt classes in Gehring classes are valid, are obtained for the one-dimensional case. The reverse inclusion is obtained as well. A new method is introduced which is based on a comparison of a monotone function with a power function. The necessary and sufficient condition for the monotone external function is found such that the superposition with an arbitrary function from one fixed Muckenhoupt (Gehring) class belongs to the other fixed Muckenhoupt (Gehring) class. The analogous questions for the limiting cases of Gehring and Muckenhoupt classes are considered as well

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