• 제목/요약/키워드: Mixed Variational Theorem

검색결과 25건 처리시간 0.024초

PERTURBED PROXIMAL POINT ALGORITHMS FOR GENERALIZED MIXED VARIATIONAL INEQUALITIES

  • Jeong, Jae-Ug
    • East Asian mathematical journal
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    • 제18권1호
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    • pp.95-109
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    • 2002
  • In this paper, we study a class of variational inequalities, which is called the generalized set-valued mixed variational inequality. By using the properties of the resolvent operator associated with a maximal monotone mapping in Hilbert spaces, we have established an existence theorem of solutions for generalized set-valued mixed variational inequalities, suggesting a new iterative algorithm and a perturbed proximal point algorithm for finding approximate solutions which strongly converge to the exact solution of the generalized set-valued mixed variational inequalities.

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MULTIVALUED MIXED QUASI-VARIATIONAL-LIKE INEQUALITIES

  • Lee Byung-Soo
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제13권3호
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    • pp.197-206
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    • 2006
  • This paper introduces a class of multivalued mixed quasi-variational-like ineqcalities and shows the existence of solutions to the class of quasi-variational-like inequalities in reflexive Banach spaces.

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적층평판의 응력해석 향상을 위한 고전적 고차전단변형이론의 개선 (On the Modification of a Classical Higher-order Shear Deformation Theory to Improve the Stress Prediction of Laminated Composite Plates)

  • 김준식;한 장우;조맹효
    • 한국전산구조공학회논문집
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    • 제24권3호
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    • pp.249-257
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    • 2011
  • 본 논문에서는 고전적 고차전단변형이론(HSDT)을 이용한 복합재료 적층평판의 응력해석 개선기법을 소개한다. 횡방향 응력들에 대해서만 변분을 취하는 혼합변분이론(Mixed variational theorem)을 통하여 횡방향 전단 변형에너지를 개선하였다. 가정된 횡방향 전단응력은 면내 변위가 5차 다항식을 갖는 고차 지그재그 이론으로부터 구하였으며, 변위들은 고전적 고차전단변형이론의 변위장을 사용하였다. 이 과정을 통하여 얻어진 변형 에너지를 본 논문에서는 EHSDTM라고 명명하였으며, 이 이론을 통해 복합재 적층평판의 변위와 응력을 계산함에 있어서 HSDT와 비슷한 수준의 계산적 효율을 가지면서, 동시에 최소자승오차법에 따른 후처리 과정을 적용함으로써 변위와 응력의 두께방향 분포를 정확하게 예측할 수 있도록 개선하였다. 계산된 결과는 고전적 HSDT, 3차원 탄성해 등의 여러 결과들과 비교하여 검증하였다.

GENERALIZED NONLINEAR MULTIVALUED MIXED QUASI-VARIATIONAL-LIKE INEQUALITIES

  • Lee, Byung-Soo;Khan M. Firdosh;Salahuddin Salahuddin
    • 대한수학회논문집
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    • 제21권4호
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    • pp.689-700
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    • 2006
  • In this paper, we introduce a new class of generalized nonlinear multivalued mixed quasi-variational-like inequalities and prove the existence and uniqueness of solutions for the class of generalized nonlinear multivalued mixed quasi-variational-like inequalities in reflexive Banach spaces using Fan-KKM Theorem.

A SYSTEM OF PARAMETRIC GENERALIZED NONLINEAR MIXED QUASI-VARIATIONAL INCLUSIONS IN $L_p$ SPACES

  • Jeong, Jae-Ug
    • Journal of applied mathematics & informatics
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    • 제19권1_2호
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    • pp.493-506
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    • 2005
  • In this paper, we study the behavior and sensitivity analysis of the solution set for a system of parametric generalized nonlinear mixed quasi-variational inclusions in Banach spaces. By using some new and innovative technique, existence theorem for the system of parametric generalized nonlinear mixed quasi-variational inclusions in $L_p(p\ge2$ spaces is established. Our results improve the known result of Agarwal et al.[1].

MIXED VECTOR FQ-IMPLICIT VARIATIONAL INEQUALITIES WITH FQ-COMPLEMENTARITY PROBLEMS

  • Lee, Byung-Soo
    • 호남수학학술지
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    • 제31권2호
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    • pp.247-258
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    • 2009
  • This paper introduces new mixed vector FQ-implicit variational inequality problems and corresponding mixed vector FQ-implicit complementarity problems for set-valued mappings, and studies the equivalence between them under certain assumptions in Banach spaces. It also derives some new existence theorems of solutions for them with examples under suitable assumptions without monotonicity. This paper generalizes and extends many results in [8, 10, 19-22].

A HYBRID PROXIMAL POINT ALGORITHM AND STABILITY FOR SET-VALUED MIXED VARIATIONAL INCLUSIONS INVOLVING (A, ${\eta}$)-ACCRETIVE MAPPINGS

  • Kim, Jong-Kyu;Li, Hong Gang
    • East Asian mathematical journal
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    • 제26권5호
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    • pp.703-714
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    • 2010
  • A new class of nonlinear set-valued mixed variational inclusions involving (A, ${\eta}$)-accretive mappings in Banach spaces is introduced and studied, which includes many kind of variational inclusion (inequality) and complementarity problems as special cases. By using the resolvent operator associated with (A, ${\eta}$)-accretive operator due to Lan-Cho-Verma, the existence of solution for this kind of variational inclusion is proved, and a new hybrid proximal point algorithm is established and suggested, the convergence and stability theorems of iterative sequences generated by new iterative algorithms are also given in q-uniformly smooth Banach spaces.

Transverse stress determination of composite plates

  • Phoenix, S.S.;Sharma, M.;Satsangi, S.K.
    • Structural Engineering and Mechanics
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    • 제27권4호
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    • pp.457-475
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    • 2007
  • Analysis of transverse stresses at layer interfaces in a composite laminate has always been a challenging task. Composite structures possess highly irregular material properties at layer interfaces, which cause high shear stresses. Classical Plate Theory and First Order Shear Deformation Theory (FSDT) use post computing to calculate transverse stresses. This paper presents Reissner Mixed Variational Theorem (RMVT) based finite element model to carry out layer-wise analysis of composite laminates. Selective integration scheme has been used. The formulation has been validated by solving numerical examples and comparing the results with those published in the literature.