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This category marks all the ICTP posts containing the pdf file of the paper/book.

On the characterizations of partial metrics and quasimetrics

6 years ago

AbstractWe present the relationship between the notion of partial metric, which has applications in Computer Science, that of quasimetric (which…

Best approximation and unique extension of Lipschitz functions

6 years ago

AbstractAuthorsCostică Mustăța Costică Mustăţa KeywordsPaper coordinatesC. Mustata, Best approximation and unique extension of Lipschitz functions, J. Approx. Theory 19 (1977), 222-230,…

Norm preserving extension of convex Lipschitz functions

6 years ago

AbstractAuthorsStefan Cobzas Ştefan Cobzaş Institutul de Matematica Cluj-Napoca, Romania Costica Mustata Costică Mustăţa Institutul de Matematica, Cluj-Napoca, Romania (ICTP) KeywordsPaper…

On the approximation of the global extremum of a semi-Lipschitz function

6 years ago

AbstractIn this paper one obtains a sequential procedure for determining the global extremum of a semi-Lipschitz real-valued function defined on…

On the Extensions Preserving the Shape of a Semi-Hölder Function

6 years ago

AbstractWe present some results concerning the extension of a semi-Hölder real-valued function defined on a subset of a quasi-metric space,…

Unsteady boundary layer flow and heat transfer over a stretching sheet

6 years ago

AbstractUnsteady two-dimensional boundary layer flow and heat transfer over a stretching flat plate in a viscous and incompressible fluid of…

Mixed convection flow near an axisymmetric stagnation point on a vertical cylinder

6 years ago

AbstractThe mixed convection flow near an axisymmetric stagnation point on a vertical cylinder is considered. The equations for the fluid…

On the nonmonotone behavior of the Newton‐GMBACK method

6 years ago

AbstractGMBACK is a Krylov solver for large linear systems, which is based on backward error minimization properties. The minimum backward…

A mixed iteration for nonnegative matrix factorizations

6 years ago

Abstract We show that, under appropriate conditions, one can create a hybrid between two given iterations which can perform better…

Solving inverse problems via hemicontractive maps

6 years ago

AbstractWe prove a “collage” theorem for hemicontractive maps and we use it for inverse problems. A numerical example is given.…

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