20 Result(s)
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Article
M Pappalardo
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Article
Quasi-variational equilibrium models for network flow problems
We consider a formulation of a network equilibrium problem given by a suitable quasi-variational inequality where the feasible flows are supposed to be dependent on the equilibrium solution of the model. The K...
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Thermodynamics of azurin folding
The role played by the metal ion in thermodynamics of azurin folding was addressed by studying the thermal denaturation of the apo-form by differential scanning calorimetry (DSC), and by comparing the results ...
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Role of electrostatics in the thermal stability of ubiquitin
The failure of the ubiquitin-proteasome system is involved in many diseases. Here, in order to assess the pH-induced changes in the physico-chemical properties of ubiquitin, DSC measurements have been carried ...
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Phase behaviour of polymer-grafted DPPC membranes for drug delivery systems design
DPPC dispersions containing DPPE with attached PEG of molecular masses 350, 2000 and 5000 were investigated by DSC in order to determine their phase behaviour and potential use as drug delivery systems. In com...
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The DataGrid Workload Management System: Challenges and Results
The workload management task of the DataGrid project was mandated to define and implement a suitable architecture for distributed scheduling and resource management in a Grid environment. The result was the de...
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On the Image Regularity Condition
In this paper, we continue the analysis of the image regularity condition (IRC) as introduced in a previous paper where we have proved that IRC implies the existence of generalized Lagrange-John multipliers wi...
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Nash Equilibria, Variational Inequalities, and Dynamical Systems
In this paper, we introduce some relationships between Nash equilibria, variational equilibria, and dynamical equilibria for noncooperative games.
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Stability for Equilibrium Problems: From Variational Inequalities to Dynamical Systems
We study the connections between solutions of variational inequalities and equilibrium points of a generalized dynamical system. Furthermore, we analyze some stability questions arising in this field.
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About a Gap between Multiobjective Optimization and Scalar Optimization
We explain the reason for the existence of a gap between multiobjective and scalar optimization proposed in Ref. 1, giving a characterization of this gap.
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Regularity Conditions in Vector Optimization
By exploiting very recent results concerning linear separation between a set and a convex cone, the image space approach allows us to achieve new regularity conditions for vector minimum problems. In particula...
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G-Semidifferentiability in Euclidean Spaces
To unify the increasing number of generalized derivatives in the recent literature, a general concept of differentiability, embracing several classical cases, has been proposed in Ref. 1. Proceeding in this ve...
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Regularity Conditions for the Linear Separation of Sets
In this paper, we study the linear separation between a set and a convex cone. We introduce the concepts of regularity and total regularity of the separation with respect to a face of the cone and we give theo...
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Separation of Sets, Lagrange Multipliers, and Totally Regular Extremum Problems
We introduce the concept of total regularity for the separation of sets, and we give a characterization of it. Also, we prove the equivalence between total regularity and boundedness of the generalized multipl...
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Image of a parametric optimization problem and continuity of the perturbation function
In this note, we consider the notion of the image of a parametric optimization problem and show that the lower semicontinuity and upper semicontinuity properties of its marginal function can be equivalently ex...
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Regularity conditions for constrained extremum problems via image space
Exploiting the image-space approach, we give an overview of regularity conditions. A notion of regularity for the image of a constrained extremum problem is given. The relationship between image regularity and...
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Error bounds for generalized Lagrange multipliers in locally Lipschitz programming
Recent studies are concerned with two types of questions in nonconvex optimization: (a) conditions for having bounded Lagrange multipliers, Refs. 1–2; (b) a priori bounds for such Lagrange multipliers, Ref. 3....
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Tangent cones and Dini derivatives
We prove a property of the Bouligand tangent cone to the epigraph (or to the graph) of a locally Lipschitz function. It is also shown how this result can be used in determining Dini sequences. Finally, some re...
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Image space approach to penalty methods
In this paper, we introduce a unified framework for the study of penalty concepts by means of the separation functions in the image space (see Ref. 1). Moreover, we establish new results concerning a correspon...
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69 HORMONAL, AUXOLOGICAL AND ANTHROPOMETRIC ASPECTS IN YOUNG FOOTBALL PLAYERS
Hormonal parameters (SmC, GH, Testosterone (T) and DHAS), lenght and width measures, body composition and biological maturation (bone age, pubic hair, testicular volume) indicators were used to evaluate during...
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On the reciprocal vector optimization problems
A necessary and sufficient condition is established for an optimal solution of a primal vector optimization problem to be an optimal solution of its reciprocal. Such a condition is developed and analyzed in th...
