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مرکز اطلاعات علمی SID1
اسکوپوس
مرکز اطلاعات علمی SID
ریسرچگیت
strs
Author(s): 

YAMAMOTO TAKANORI

Issue Info: 
  • Year: 

    2014
  • Volume: 

    5
  • Issue: 

    1
  • Pages: 

    101-108
Measures: 
  • Citations: 

    0
  • Views: 

    41266
  • Downloads: 

    22334
Abstract: 

Let a, b, c and d be functions in L2=L2(T, dq/2p), where T denotes the unit circle. Let P denote the set of all trigonometric polynomials. Suppose the singular INTEGRAL operators A and B are defined by A=aP+bQ and B=cP+dQ on P, where P is an analytic projection and Q=I-P is a co-analytic projection. In this paper, we use the Helson–Szego type set (HS)(r) to establish the condition of a, b, c and d satisfying ||Af||2³||Bf||2 for all f in P. If a, b, c and d are bounded measurable functions, then A and B are bounded operators, and this is equivalent to that B is majorized by A on L2, i.e., A*A³B*B on L2. Applications are then presented for the majorization of singular INTEGRAL operators on weighted L2 spaces, and for the normal singular INTEGRAL operators aP+bQ on L2 when a−b is a complex constant.

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Author(s): 

CUMINATO J.A. | FITT A.D. | MCKEE S.

Issue Info: 
  • Year: 

    2007
  • Volume: 

    19
  • Issue: 

    -
  • Pages: 

    163-207
Measures: 
  • Citations: 

    388
  • Views: 

    14919
  • Downloads: 

    15944
Keywords: 
Abstract: 

Yearly Impact:

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Issue Info: 
  • Year: 

    2016
  • Volume: 

    7
  • Issue: 

    2
  • Pages: 

    185-193
Measures: 
  • Citations: 

    0
  • Views: 

    29866
  • Downloads: 

    9197
Abstract: 

In this article, we apply two new fixed point theorems to investigate the existence of mild solutions for a nonlocal fractional CAUCHY problem with an INTEGRAL initial condition in Banach spaces.

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گارگاه ها آموزشی
Author(s): 

CAKALLI H. | HAZARIKA B.

Issue Info: 
  • Year: 

    2012
  • Volume: 

    -
  • Issue: 

    -
  • Pages: 

    0-0
Measures: 
  • Citations: 

    400
  • Views: 

    14456
  • Downloads: 

    18003
Keywords: 
Abstract: 

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Issue Info: 
  • Year: 

    2010
  • Volume: 

    6
  • Issue: 

    23
  • Pages: 

    11-17
Measures: 
  • Citations: 

    0
  • Views: 

    1315
  • Downloads: 

    721
Abstract: 

In this paper, perturbation technique and Lagrange expansion to solve the nonlinear algebriac equations is introduced. Also Some examples are provided to illustrate the simplicity and efficiency of the new proposed methods.

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Author(s): 

KHANEHGIR M. | JANFADA M. | NIKNAM A.

Issue Info: 
  • Year: 

    2005
  • Volume: 

    31
  • Issue: 

    2
  • Pages: 

    71-81
Measures: 
  • Citations: 

    0
  • Views: 

    52076
  • Downloads: 

    23803
Abstract: 

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Author(s): 

FARD O.S.

Issue Info: 
  • Year: 

    2009
  • Volume: 

    3
  • Issue: 

    -
  • Pages: 

    307-314
Measures: 
  • Citations: 

    315
  • Views: 

    9060
  • Downloads: 

    9195
Keywords: 
Abstract: 

Yearly Impact:

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Issue Info: 
  • Year: 

    2010
  • Volume: 

    7
  • Issue: 

    1
  • Pages: 

    61-72
Measures: 
  • Citations: 

    0
  • Views: 

    731
  • Downloads: 

    145
Abstract: 

In this paper, we discuss a new generalization of univariate skew-CAUCHY distribution with two parameters, we denoted this by GSC (l1, l 2), that it has more flexible than the skew-CAUCHY distribution (denoted by SC (l)), introduced by Behboodian et al. (2006). Furthermore, we establish some useful properties of this distribution and by two numerical example, show that GSC (l1, l2) can fits the data better than SC (l).

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Author(s): 

NADIR MOSTEFA

Journal: 

MATHEMATICAL SCIENCES

Issue Info: 
  • Year: 

    2012
  • Volume: 

    6
  • Issue: 

    -
  • Pages: 

    1-5
Measures: 
  • Citations: 

    0
  • Views: 

    43765
  • Downloads: 

    19889
Abstract: 

Purpose: The purpose of this work is to present an approximation for singular INTEGRALs of CAUCHY type kernel on a smooth-oriented contour.Methods: For the method, we use a small modification of the spline functions in order to eliminate the singularity. Noting that this approximation is due to the idea of Sanikidze’s Approximate solution of singular INTEGRAL equations in the case of closed contours of integrations.Results: This approximation represents a good approach for any singular INTEGRAL given on the curve in the sense of CAUCHY principal value.Conclusions: This approximation is destined to solve numerically the singular INTEGRAL equations with CAUCHY type kernel on a smooth-oriented contour.

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Author(s): 

JAGER G.

Issue Info: 
  • Year: 

    2015
  • Volume: 

    12
  • Issue: 

    4
  • Pages: 

    123-132
Measures: 
  • Citations: 

    0
  • Views: 

    24940
  • Downloads: 

    13534
Abstract: 

We study different completeness definitions for two categories of lattice-valued CAUCHY spaces and the relations between these definitions. We also show the equivalence of a so-called completion axiom and the existence of a completion.

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