Professor Jóhann Axelsson

ICT-ethics: Sweden and Japan

Whereas the benefit and harm of a widespread deployment of CCTV cameras is controversial among scholars, ordinary people seem to have accepted CCTV systems as an electronic moral gaze. However, a massive amount of personal information has already been collected and stored in private and public databases, and dataveillance systems using ubiquitous devices automatically collect, store, process, u...

Systems-of-systems for border-crossing innovation in the digitized society

A new approach to solvability of some elliptic pde’s with square integrable boundary data

I shall survey some recent results of Auscher, Axelsson and myself, concerning second order elliptic divergence form equations with complex measurable coefficients A that are independent of the transversal coordinate. In particular, we prove that the set of A ∈ L∞(Rn;Cn+1) for which boundary value problems with L2 Dirichlet or Neumann data are well posed, is an open set. This work is based on r...

Characteristics of software ecosystems for Federated Embedded Systems: A case study

http://dx.doi.org/10.1016/j.infsof.2014.03.011 0950-5849/ 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). ⇑ Corresponding author at: Swedish Institute of Computer Science (SICS), SE-164 29 Kista, Sweden. Tel.: +46 72 734 29 52. E-mail address: [email protected] (J. Axelsson). Jakob Axelsson a...

An Algebraic Multilevel Iteration Method for Finite Element Matrices∗

To solve a sparse linear system of equations resulting from the finite element approximation of elliptic self-adjoint second order boundary value problems an algebraic multilevel iteration method is presented. The new method can be considered as an extension of methods, which have been defined by Axelsson and Eijkhout [4] for nine-point matrices and later generalized by Axelsson and Neytcheva [...