Results 11 to 20 of about 322 (60)
Journal of Applied Mathematics, Volume 2004, Issue 5, Page 409-431, 2004., 2004 We consider the problem of projecting a point onto a region defined by a linear equality or inequality constraint and two‐sided bounds on the variables. Such problems are interesting because they arise in various practical problems and as subproblems of gradient‐type methods for constrained optimization.
Stefan M. Stefanov
wiley +1 more source
On the closure of the sum of closed subspaces
International Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 5, Page 257-267, 2001., 2001 We give necessary and sufficient conditions for the sum of closed subspaces of a Hilbert space to be closed. Specifically, we show that the sum will be closed if and only if the angle between the subspaces is not zero, or if and only if the projection of either space into the orthogonal complement of the other is closed.
Irwin E. Schochetman +2 more
wiley +1 more source
On a class of multivalued variational inequalities
International Journal of Stochastic Analysis, Volume 11, Issue 1, Page 79-93, 1998., 1996 In this paper, we introduce and study a new class of variational inequalities, which are called multivalued variational inequalities. These variational inequalities include as special cases, the previously known classes of variational inequalities. Using projection techniques, we show that multivalued variational inequalities are equivalent to fixed ...
Muhammad Aslam Noor
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On certain classes of variational inequalities and related iterative algorithms
International Journal of Stochastic Analysis, Volume 9, Issue 1, Page 43-56, 1996., 1995 In this paper, we introduce and study some new classes of variational inequalities and Wiener‐Hopf equations. Essentially using the projection technique, we establish the equivalence between the multivalued general quasi‐variational inequalities and the multivalued implicit Wiener‐Hopf equations.
Muhammad Aslam Noor
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The necessary and sufficient conditions of copositive tensors
, 2013 In this paper, it is proved that (strict) copositivity of a symmetric tensor $\mathcal{A}$ is equivalent to the fact that every principal sub-tensor of $\mathcal{A}$ has no a (non-positive) negative $H^{++}$-eigenvalue.
Qi, Liqun, Song, Yisheng
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, 2018 In Part 1 of this paper, we have estimated the Fr\'echet coderivative and the Mordukhovich coderivative of the stationary point set map of a smooth parametric optimization problem with one smooth functional constraint under total perturbations.
Huyen, Duong Thi Kim +2 more
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Infant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 1, Page 95-111, January 2025.Abstract We compared referrals and connection to care between perinatal patients: 90 receiving OB/GYN care in clinics with integrated behavioral health consultants with infant mental health specialization (IMH‐BHC), and 68 receiving traditional care, in the United States.
Jennifer M. Jester +8 more
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Ultraviolet radiation protection factors of livestock shade cloths for free‐range pigs
Veterinary Dermatology, Volume 35, Issue 6, Page 641-651, December 2024.Background – Protection from solar ultraviolet radiation (UVR) is paramount in light‐skinned pig breeds such as Yorkshire or Landrace to avoid sunburn. Objectives – Determination of the UVR exposure of a pig and the sun protection abilities of shade cloths with different shade rates.
A. W. Schmalwieser +4 more
wiley +1 more source
Quadratization of Symmetric Pseudo-Boolean Functions [PDF]
, 2013 A pseudo-Boolean function is a real-valued function $f(x)=f(x_1,x_2,\ldots,x_n)$ of $n$ binary variables; that is, a mapping from $\{0,1\}^n$ to $\mathbb{R}$.
Anthony, Martin +3 more
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An SDP Approach For Solving Quadratic Fractional Programming Problems [PDF]
, 2014 This paper considers a fractional programming problem (P) which minimizes a ratio of quadratic functions subject to a two-sided quadratic constraint. As is well-known, the fractional objective function can be replaced by a parametric family of quadratic ...
Nguyen, Van-Bong +2 more
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