• Title/Summary/Keyword: integral operators

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Certain Subclasses of k-uniformly Functions Involving the Generalized Fractional Differintegral Operator

  • Seoudy, Tamer Mohamed
    • Kyungpook Mathematical Journal
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    • v.58 no.2
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    • pp.243-255
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    • 2018
  • We introduce several k-uniformly subclasses of p-valent functions defined by the generalized fractional differintegral operator and investigate various inclusion relationships for these subclasses. Some interesting applications involving certain classes of integral operators are also considered.

A CERTAIN EXAMPLE FOR A DE GIORGI CONJECTURE

  • Cho, Sungwon
    • Journal of the Chungcheong Mathematical Society
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    • v.27 no.4
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    • pp.763-769
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    • 2014
  • In this paper, we illustrate a counter example for the converse of a certain conjecture proposed by De Giorgi. De Giorgi suggested a series of conjectures, in which a certain integral condition for singularity or degeneracy of an elliptic operator is satisfied, the solutions are continuous. We construct some singular elliptic operators and solutions such that the integral condition does not hold, but the solutions are continuous.

A NEW CLASS OF EULER TYPE INTEGRAL OPERATORS INVOLVING MULTIINDEX MITTAG-LEFFLER FUNCTION

  • Khan, Nabiullah;Ghayasuddin, Mohd.;Shadab, Mohd
    • Honam Mathematical Journal
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    • v.40 no.4
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    • pp.691-700
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    • 2018
  • The main object of the present research paper is to establish two (potentially) useful Euler type integrals involving multiindex Mittag-Leffler functions, which are expressed in terms of Wright hypergeometric functions. Some deductions of the main results are also indicated.

GENERALIZING HARDY TYPE INEQUALITIES VIA k-RIEMANN-LIOUVILLE FRACTIONAL INTEGRAL OPERATORS INVOLVING TWO ORDERS

  • Benaissa, Bouharket
    • Honam Mathematical Journal
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    • v.44 no.2
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    • pp.271-280
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    • 2022
  • In this study, We have applied the right operator k-Riemann-Liouville is involving two orders α and β with a positive parameter p > 0, further, the left operator k-Riemann-Liouville is used with the negative parameter p < 0 to introduce a new version related to Hardy-type inequalities. These inequalities are given and reversed for the cases 0 < p < 1 and p < 0. We then improved and generalized various consequences in the framework of Hardy-type fractional integral inequalities.

NEW CRITERIA FOR SUBORDINATION AND SUPERORDINATION OF MULTIVALENT FUNCTIONS ASSOCIATED WITH THE SRIVASTAVA-ATTIYA OPERATOR

  • VIRENDRA KUMAR;NAK EUN CHO
    • Journal of applied mathematics & informatics
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    • v.41 no.2
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    • pp.387-400
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    • 2023
  • The purpose of the present paper is to obtain some subordination and superordination preserving properties with the sandwich-type theorems for multivalent functions in the open unit disk associated with Srivastava-Attiya operator. Moreover, applications for integral operators are also considered.

ON INTEGRAL OPERATORS INVOLVING THE PRODUCT OF GENERALIZED BESSEL FUNCTION AND JACOBI POLYNOMIAL

  • KHAN, WASEEM A.;GHAYASUDDIN, M.;SRIVASTAVA, DIVESH
    • Journal of applied mathematics & informatics
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    • v.36 no.5_6
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    • pp.397-409
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    • 2018
  • The aim of this research note is to evaluate two generalized integrals involving the product of generalized Bessel function and Jacobi polynomial by employing the result of Obhettinger [2]. Also, by mean of the main results, we have established an interesting relation in between $Kamp{\acute{e}}$ de $F{\acute{e}}riet$ and Srivastava and Daoust functions. Some interesting special cases of our main results are also indicated.

BOUNDED CONVERGENCE THEOREMS

  • Niemiec, Piotr
    • Journal of the Korean Mathematical Society
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    • v.54 no.1
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    • pp.319-357
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    • 2017
  • There are presented certain results on extending continuous linear operators defined on spaces of E-valued continuous functions (defined on a compact Hausdorff space X) to linear operators defined on spaces of E-valued measurable functions in a way such that uniformly bounded sequences of functions that converge pointwise in the weak (or norm) topology of E are sent to sequences that converge in the weak, norm or weak* topology of the target space. As an application, a new description of uniform closures of convex subsets of C(X, E) is given. Also new and strong results on integral representations of continuous linear operators defined on C(X, E) are presented. A new classes of vector measures are introduced and various bounded convergence theorems for them are proved.

An empirical comparison of static fuzzy relational model identification algorithms

  • Bae, Sang-Wook;Lee, Kee-Sang;Park, Gwi-Tae
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.146-151
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    • 1994
  • An empirical comparison of static fuzzy relational models which are identified with different fuzzy implication operators and inferred by different composition operators is made in case that all the information is represented by the fuzzy discretization. Four performance measures (integral of mean squared error, maximal error, fuzzy equality index and mean lack of sharpness) are adopted to evaluate and compare the quality of the fuzzy relational models both at the numerical level and logical level. As the results, the fuzzy implication operators useful in various fuzzy modeling problems are discussed and it is empirically shown that the selection of data pairs is another important factor for identifying the fuzzy model with high quality.

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GENERALIZED FRACTIONAL DIFFERINTEGRAL OPERATORS OF THE K-SERIES

  • Gupta, Rajeev Kumar;Shaktawat, Bhupender Singh;Kumar, Dinesh
    • Honam Mathematical Journal
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    • v.39 no.1
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    • pp.61-71
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    • 2017
  • In the present paper, we further study the generalized fractional differintegral (integral and differential) operators involving Appell's function $F_3$ introduced by Saigo-Maeda [9], and are applied to the K-Series defined by Gehlot and Ram [3]. On account of the general nature of our main results, a large number of results obtained earlier by several authors such as Ram et al. [7], Saxena et al. [14], Saxena and Saigo [15] and many more follow as special cases.

A HYBRID VOLTERRA-TYPE EQUATION WITH TWO TYPES OF IMPULSES

  • Belbas S.A.;Park Jong-Seo
    • The Pure and Applied Mathematics
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    • v.13 no.2 s.32
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    • pp.121-136
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    • 2006
  • We formulate and analyze a hybrid system model that involves Volterra integral operators with multiple integrals and two types of impulsive terms. We give a constructive proof, via an iteration method, of existence and uniqueness of solutions.

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