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在“
Elsevier电子期刊
”中,
命中:
4
条,耗时:0.0609719 秒
1.
-widths of certain function classes defined by the modulus of continuity
作者:
Mirgand Shabozovich Shabozov
a
;
shabozov@mail.ru
;
Gulzorkhon Amirshoevich Yusupov
b
;
G_7777@mail.ru
;
Sofiya Davronbekovna Temurbekova
a
;
sofish-83@mail.ru
关键词:
Best approximation
;
Modulus of continuity
;
Differentiable periodic functions
;
Inequalities of Jackson&
ndash
;
Stechkin
;
Widths
刊名:Journal of Approximation Theory
出版年:2017
2.
Stechkin
¡¯s problem for differential operators and functionals of first and second orders
作者:
Yuliya Babenko
a
;
ybabenko@kennesaw.edu
;
yulichka.babenko@gmail.com
;
Dmitriy Skorokhodov
b
关键词:
Unbounded operator
;
Landau&
ndash
;
Kolmogorov inequality
;
Sharp constants
;
Stechkin
&rsquo
;
s problem
;
Extremal problems
;
Best approximation
刊名:Journal of Approximation Theory
出版年:2013
3.
Generalized weighted
Stechkin
-Marchaud-type inequalities for Baskakov-Durrmeyer operators
作者:
Feng Guo
关键词:
Baskakov&
ndash
;
Durrmeyer operators
;
Stechkin
&
ndash
;
Marchaud-type inequality
;
K-functional
;
Weighted modulus of smoothness
刊名:Journal of Mathematical Analysis and Applications
出版年:2012
4.
Stechkin
&
ndash
;Marchaud-Type Inequalities for Baskakov Polynomials
作者:
Guo
;
Shunsheng
;
Tong
;
Hongzhi
;
Zhang
;
Gengsheng
刊名:Journal of Approximation Theory
出版年:2002
1
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