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Convergence analysis of a full discretization of operator-valued differential Riccati equations Eskil Hansen Tony Stillfjord Teodor Åberg April 28, 2026 Abstract In recent previous work [E. Hansen, T. Stillfjord and T. Åberg, SIAM J. Numer. Anal., to appear], we analyzed the convergence of operator splitting methods applied to operator-valued differential Riccati equations (DRE). In this paper,

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/HansenStillfjordAaberg2026_2_arXiv.pdf - 2026-06-28

This Master’s thesis discusses the subject of documenting processes within the archival science, or more accurately the new injunction 2008:4 and the opinions and attitudes Swedish archivists have in regards to it. The national archives of Sweden (Riksarkivet) put out the injunction in 2008 and all the government-owned authorities has to apply it onto their work. They all have to document their

Nanocrystalline Cr2O3 thin films were deposited on silicon wafers with (100) orientation by arc ion plating (AIP) technique at various negative bias voltages. By virtue of X-ray diffraction analysis, scanning electron microscope, and high-resolution transmission electron microscope, the influence of substrate bias voltage on the film growth process, microstructure, and characteristics was investig

The aim of this study was to examine youth entry to the Swedish labor market. Young people´s own experiences of their entry into the labor market were in focus as well as their experiences regarding the importance of social actors through their path. The study was intended to highlight the impeding and enabling factors that a youth can face along their path to the labor market. This has been made

Under början av förra seklet skedde en formlig reception av tysk processrätt genom Ernst Kallenbergs verk Svensk Civilprocessrätt i två band. Således kom läran om processföremålet genom 1942 års processreform att läggas till grund för utformningen av den svenska rättegångsbalken (RB). Läran om processföremålet innebär att saken är den omtvistade rättigheten i det bakom-liggande rättsförhållande soAt the turn of the last century, a formal reception of German procedural law took place through Ernst Kallenberg’s work ’Svensk Civilprocessrätt’ in two volumes. Thereby, the German doctrine on the essence of the claim formed the basis for the Swedish Code of Procedure, rättegångsbalken (RB), through the procedural reform of 1942. The doctrine on the essence of the claim holds that the matter cont

The aim of the study was to investigate the relationships between job satisfaction and empathic concern, perspective-taking and performance-based self-esteem. The study did also aim to examine if empathic concern, perspective-taking and performance-based self-esteem could predict job satisfaction and investigate which one was the best predictor. The survey was answered by 232 working participants

Problem presentation: The ability to efficiently co-ordinate and direct design management is an extremely important aspect of the building design process. During the building design process you manufacture the intangible building structure that will form the foundation of the physical building structures. There are many challenging tasks and areas when attempting to achieve an efficient building d

The aim of this study was to examine how adults in their blogs relate to the concepts of victim and survivor, and how they describe their self-esteem to understand the complexity that exists in revealing and telling about a sexual abuse they were exposed to in their childhood and what meaning the blog have in this context. Sexual abuse against children is a taboo subject that evokes many emotional

Floriculture industry is very dynamic in its varieties and trade volumes demonstrating 6 to 9 % of annual growth. It gets also more and more diverse in terms of global actors. Now there are about 120 countries actively involved in the floriculture industry as global manufactures with the Netherlands as an epicentre of world flower production and distribution. In that respect, analysis of the flori

The aim of this study was to examine how the Swedish Court takes the will of the child in consideration, regarding legal decisions during custody disputes. Eight documented rulings have been reviewed from 2019 and 2020. A thematic content analysis has been made on eight of the rulings. The purpose of the analysis was to interpret the ruling decision process in the light of Convention on the rights

The aim of the user related assessment was to study perceived advantages, disadvantages, usefulness, trust, acceptance, willingness to have and pay for the driver assistance system: Continuous Support & Curve Speed Control developed by FFA within the framework of the SECONDS subproject. Due to restrictions in driving in real traffic, assessment activities were limited to driving on a test trac

Purpose: The aim of this study was to describe clients' experiences of a work rehabilitation process. Method: Ten clients who had participated in work-related rehabilitation at a rehabilitation centre in the northern parts of Sweden were interviewed using a narrative approach. The interviews were analysed using qualitative content analysis focusing on clients' descriptions of the goals, contents a

BACKGROUND: Current guidelines for accessing graphs non-visually are based on giving access to underlying tabular data and reading the values one by one. When data sets are large, it becomes impossible to get an overview.OBJECTIVE: This work presents a proof-of-concept of automated audio description of data sets up to 100 data points that can be used by persons with visual impairment or persons wh

BACKGROUND:There are limited data on the treatment outcomes of adolescents living with HIV. Our objective was to compare mortality and loss to follow up (LTFU) rates between adolescent and younger age groups at enrollment in care.METHODS:This was a retrospective cohort study carried out in eight health facilities in two regions of Ethiopia. Adolescents (age 10-14 and 15-19 year) and children (age BackgroundThere are limited data on the treatment outcomes of adolescents living with HIV. Our objective was to compare mortality and loss to follow up (LTFU) rates between adolescent and younger age groups at enrollment in care.MethodsThis was a retrospective cohort study carried out in eight health facilities in two regions of Ethiopia. Adolescents (age 10–14 and 15–19 year) and children (age 0–

The Intergovernmental Panel on Climate Change (IPCC) maintains a fine balance between scientific credibility and policy-relevance. The IPCC's review process plays an important role in ensuring that this takes place. This paper looks at the review process of the Summary for Policymakers of the Special Report on Global Warming of 1.5 Degrees (SR15) published in 2018. We apply a framework for the mak

Presented within the Urban Architecture Conference: In the Search of Urban Quality, Urban Form and Urban Life at Lund University (2018), this contribution forms part of a broader exploration into the relationship between architecture, urban design, and contemporary urban conditions.The presentation introduces a pedagogical and design-oriented framework for engaging with urban architecture, structu

An Age-Related Exponential Decline in the Risk of Multiple Islet Autoantibody Seroconversion During Childhood An Age-Related Exponential Decline in theRiskofMultiple Islet Autoantibody Seroconversion During Childhood https://doi.org/10.2337/dc20-2122 OBJECTIVE Islet autoimmunity develops before clinical type 1 diabetes and includes multiple and single autoantibody phenotypes. The objective was to

https://www.teddy.lu.se/sites/teddy.lu.se/files/2021-11/127_MP237_Bonifacio_Diab%20Care_2021.pdf - 2026-06-28

Äntligen har jag kommit igång med rapportarbetet SLUTRAPPORT FRÅN SUHF:s EXPERTGRUPP FÖR KVALITETSFRÅGOR 2012-2013 Oktober 2013 1 Förord Mandatperioden 2012-2013 för SUHF:s expertgrupp för kvalitetsfrågor går mot sitt slut. Som framgår av rapportens titel är detta gruppens slutrapport för denna period. Rapporten består av en huvudtext och ett antal bilagor. Expertgruppen svarar för huvudtexten, me

https://www.lu.se/sites/www.lu.se/files/slutrapport_suhfs_expertgrupp_for_kvalitetsfragor.pdf - 2026-06-28

List of scientific papers (peer-reviewed) scrutinized during the preparation of the synthesis Each article is assigned to at least one item in the three categories below. For some types of studies, e.g. reviews, observational or process studies, no item might be assigned in the third category, specifying the type of model applied. Subject of study: Atmospheric composition (ATC) – Bioenergy (BIE) –

https://www.cec.lu.se/sites/cec.lu.se/files/2020-11/e5_cec_synthesis_05.pdf - 2026-06-28