Much recent work has been devoted to utilizing changes in either the inherent or imparted
electrical conductivity of self-sensing materials as an indicator of damage, deformation or …

The formulation of limit analysis by means of the finite element method leads to an
optimization problem with a large number of variables and constraints. Here we present a …

In geomechanics, limit analysis provides a useful method for assessing the capacity of
structures such as footings and retaining walls, and the stability of slopes and excavations …

We consider variationally consistent discretization schemes for mechanical contact
problems. Most of the results can also be applied to other variational inequalities, such as …

We show that electrical impedance tomography (EIT) image reconstruction algorithms with
regularization based on the total variation (TV) functional are suitable for in vivo imaging of …

An efficient procedure to compute strict upper and lower bounds for the exact collapse
multiplier in limit analysis is presented, with a formulation that explicitly considers the exact …

In this paper, efficient algorithms for contact problems with Tresca and Coulomb friction in
three dimensions are presented and analyzed. The numerical approximation is based on …

Nonsmoothness pervades optimization, but the way it typically arises is highly structured.
Nonsmooth behavior of an objective function is usually associated, locally, with an active …

In this paper we present optimization algorithms for image restoration based on the total
variation (TV) minimization framework of Rudin, Osher, and Fatemi (ROF). Our approach …

Abstract In 1937, the 16-years-old Hungarian mathematician Endre Weiszfeld, in a seminal
paper, devised a method for solving the Fermat–Weber location problem—a problem whose …