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Convergence analysis of Lie and Strang splitting for operator-valued differential Riccati equations CONVERGENCE ANALYSIS OF LIE AND STRANG SPLITTING FOR OPERATOR-VALUED DIFFERENTIAL RICCATI EQUATIONS∗ ESKIL HANSEN† , TONY STILLFJORD† , AND TEODOR ÅBERG† Abstract. Differential Riccati equations (DREs) are semilinear matrix- or operator-valued differential equations with quadratic non-linearities.

https://www.maths.lu.se/fileadmin/maths/personal_staff/Eskil_Hansen/Riccati_expsplitt.pdf - 2026-06-07

Sida 1 av 16 Saco-Trafikförvaltningen Region Stockholm Samverkan mellan fackliga organisationerna i Frankrike och arbetsgivaren inom kollektivtrafiken - Stipendieresa till Paris i Frankrike 22-25 april 2019 Sida 2 av 16 Saco-Trafikförvaltningen Region Stockholm Innehåll Förord ..........................................................................................................................

https://www.saco.se/globalassets/bilder-video-och-dokument/om-saco/sacos-fackliga-stipendiefond/2019_-saco-trafikforvaltn-frankrike-paris.pdf - 2026-06-06

Background: An increased concern of environmental issues have made companies, including Haldex, look for new engineering and design practices to keep up with legislations and stakeholder pressure, often by analyzing products’ total environmental impact over their life cycles, in so called life cycle assessment studies. The Haldex Project Management Model is a company specific project model where H

Studiens fokus ligger på att utvärdera hur moderna intranät används för att stödja informat- ionshantering inom en organisation, och om ett sådant informations-system kan generera verksamhetsnytta. Syftet är att vi vill bidra till en djupare förståelse om hur informations- och kommunikationsteknologin används för att stödja informationshantering och verksamhets- nytta. Som undersökningsobjekt har

This paper has the purpose to determine whether the attractive rates offered by a local Investment Bank in Mexico under structured products, more specifically under structured notes without principal protection denominated “Dual Structured Notes”, are plausible to get, showing whether the strikes of the implicit options were chosen within critical price values for the foreign exchange rate MXN/USD

Formativ bedömning (FB) är ett arbetssätt som bidrar till både främjandet av elevers lärande och utveckling av undervisningen. Tidigare forskning har rapporterat om bland annat missuppfattningar kring FB och såväl förtjänster som utmaningar med implementering av FB. I denna studie undersöker vi matematiklärares uppfattningar om och upplevelser av FB och utgår från Black och Wiliams modell för impl

With the growing integration of renewable energy sources into the power grid, new challenges for system stability have emerged. To address this, the European Union has introduced a regulation called Requirements for Generators (RfG). This regulation sets specific performance standards, one of which is a minimum critical clearing time related to faults. Some production facilities with low inertial

The Ararat Valley, being the cereal basket of Armenia and Turkey, is in danger with over-abstracted groundwater, which already induces colossal water loss and land subsidence. In the current work, advanced remote sensing techniques and machine learning models are applied to predict subsidence and give datadriven recommendations to effect sustainable water management. The tracking of terrain change

Hållbarhet och cirkulärt byggande blir alltmer centrala i Sveriges miljömål, men implementeringen av Design för Demontering (DfD) är fortfarande begränsad. Denna studie undersöker de ekonomiska, regulatoriska och tekniska hinder som försvårar en storskalig tillämpning av DfD i den svenska byggsektorn samt identifierar strategier för att påskynda dess genomförande. Studien bygger på kvalitativ

Sustainable development requires collaboration between governments, businesses, and citizens. However, economic models, sustainability practices, and global policies are currently not fit-for-purpose to maintain global temperatures to 1.5 degrees centigrade within the timescales required to maintain a safe space for humanity to thrive. This study maps the alignment of business values and practices

The VUCA world we face today, proposes challenges for individuals with a high Need for Closure (NFC) as they may experience decreased well-being when faced with uncertainty and ambiguity. This in turn creates a problem for organizations as their employees with a high NFC may struggle to come up with innovative solutions to the complexity they are facing, making it difficult for the organization to

Massive Open Online Courses (MOOC) represent a recent stage in open education. In more and more institutions they are moving from an early entrepreneurial stage into the reality. The rapidly rising participation levels, high visibility and a growing community worldwide prompt a number of important questions. The MOOC Quality Project, an initiative of the European Foundation for Quality in E-Learn

Construction with timber is becoming increasingly popular, partially due to its environmental benefits in comparison to steel and concrete. This is especially true for cross-laminated timber (CLT) panels an engineered wood product consisting of stacked timber lamellae oriented perpendicu-larly to each other. CLT panels have high stiffness in comparison to its mass, which leads to a sensitivity to

Vi är forskargruppen Rättigheter, regleringar och samhälle vid Avdelningen för fas-tighetsvetenskap, Institutionen för teknik och samhälle, LTH, Lunds universitet. Vi har bedrivit och bedriver forskning om regleringen av skogsbruk, mestadels ur ett rättsekonomiskt perspektiv. Vi har bl.a. studerat tillämpningen av Artskyddsförord-ningen och Århuskonventionen. I vår forskning har vi kunnat konstate

This chapter examines elite polarisation as a challenge to governance in parliamentary democracies. We emphasise the distinction between ideological polarisation based on substantive policy disagreements from affective polarisation, characterised by identity-based animosity that creates barriers to cooperation even when policy compromise might otherwise be possible. While parliamentary regimes hav

Implicit sequence learning (ISL) has been studied using a variety of tasks two of which have been particularly influential: the serial reaction time task (SRTT) and the artificial grammar learning (AGL) task, stemming from the motor learning domain and psycholinguistics, respectively. SRTTs measure the difference in response times between a repeatedly presented and random sequences of keyboard pre

This study investigated how the outdoor environments at nursing homes for older persons were experienced and used to gain knowledge with implications for design. Focus group methodology was used to explore staff's view of how the residents experienced and used the outdoors. Two main themes and ten sub-themes were the result when the focus group interviews were analyzed. Theme one, being comfortabl

Professor Contact details Email: lena [dot] neij [at] iiiee [dot] lu [dot] se Phone: +46 46 222 02 22 Mobile: +46 73 436 88 52Organisation The International Institute for Industrial Environmental Economics Service point: 53 WebpageLena Neijs profile in Lund University research portalOther affiliations Affiliated professor CIRCLE Profile area member LTH Profile Area: Circular Building SectorLena Ne

https://www.iiiee.lu.se/lena-neij - 2026-06-06

The presence of paralytic shellfish poisoning toxins (PSTs) in drinking water resources has urged the development of simple and fast screening tools for drinking water surveillance. This article aims to validatea quick test kit for freshwater PSTs detection. Preliminary estimates of the limit of detection (LODs)were done for 5 PSPs variants, namely C1 toxin (a “C” toxin); GTX5(a Gonyautoxin); and