Results 1 to 10 of about 446 (83)

On boundedness and compactness of a certain class of kernel operators

open access: yesJournal of Function Spaces, Volume 9, Issue 1, Page 67-107, 2011., 2011
New conditions for Lp[0, ∞) − Lq[0, ∞) boundedness and compactness (1 < p, q < ∞) of the map f→w(x)∫a(x)b(x)k(x,y)f(y)v(y)dy with locally integrable weight functions v, w and a positive continuous kernel k(x, y) from the Oinarov’s class are obtained.
Elena P. Ushakova, Oleg V. Besov
wiley   +1 more source

On Bellman‐Golubov theorems for the Riemann‐Liouville operators

open access: yesJournal of Function Spaces, Volume 7, Issue 3, Page 289-300, 2009., 2009
Superposition of Fourier transform with the Riemann ‐ Liouville operators is studied.
Pham Tien Zung, Victor Burenkov
wiley   +1 more source

Generalizations of Hölder′s inequality

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 1, Page 7-10, 2001., 2001
Some generalized Hölder′s inequalities for positive as well as negative exponents are obtained.
Wing-Sum Cheung
wiley   +1 more source

Inequalities Involving the Derivative of Rational Functions With Prescribed Poles

open access: yesJournal of Applied Mathematics, Volume 2024, Issue 1, 2024.
This paper gives an upper bound of a modulus of the derivative of rational functions. rz=z−z0shz/wz∈Rm,n, where r(z) has exactly n poles a1, a2, ⋯, an and all the zeros of r(z) lie in Dk∪Dk+,k ≥ 1 except the zeros of order s at z0, |z0| < k. Moreover, we give an upper bound of a modulus of the derivative of rational functions.
Preeti Gupta, Chong Lin
wiley   +1 more source

Predictive dynamical modeling and stability of the equilibria in a discrete fractional difference COVID-19 epidemic model. [PDF]

open access: yesResults Phys, 2023
Chu YM   +6 more
europepmc   +1 more source

Padé approximant related to the Wallis formula. [PDF]

open access: yesJ Inequal Appl, 2017
Lin L, Ma WC, Chen CP.
europepmc   +1 more source

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