Search results for "SDI"
showing 10 items of 595 documents
Partial Data Problems and Unique Continuation in Scalar and Vector Field Tomography
2022
AbstractWe prove that if P(D) is some constant coefficient partial differential operator and f is a scalar field such that P(D)f vanishes in a given open set, then the integrals of f over all lines intersecting that open set determine the scalar field uniquely everywhere. This is done by proving a unique continuation property of fractional Laplacians which implies uniqueness for the partial data problem. We also apply our results to partial data problems of vector fields.
A graph-based multigrid with applications
2010
A posteriori error estimates for variational problems in the theory of viscous fluids
2016
The papers included in the thesis are focused on functional type a posteriori error estimates for the Stokes problem, the Stokes problem with friction type boundary conditions, the Oseen problem, and the anti-plane Bingham problem. In the summary of the thesis we consider only the Oseen problem. The papers present and justify special forms of these estimates which are suitable for the approximations generated by the Uzawa algorithm. The estimates are of two main types. Estimates of the first type use exact solutions obtained on the steps of the Uzawa algorithm. They show how errors encompassed in Uzawa approximations behave and have mainly theoretical meaning. Estimates of the second type o…
Asymptotic Mean-Value Formulas for Solutions of General Second-Order Elliptic Equations
2022
Abstract We obtain asymptotic mean-value formulas for solutions of second-order elliptic equations. Our approach is very flexible and allows us to consider several families of operators obtained as an infimum, a supremum, or a combination of both infimum and supremum, of linear operators. The families of equations that we consider include well-known operators such as Pucci, Issacs, and k-Hessian operators.
Regularity properties of tug-of-war games and normalized equations
2017
Lämpöyhtälön ja Laplacen yhtälön ratkaisun ominaisuuksia
2015
Tämän tutkielman tarkoituksena on tutustua kahteen tärkeään osittaisdifferentiaaliyhtälöön; Laplacen yhtälöön ja lämpöyhtälöön. Näitä molempia hyödynnetään fysiikan lisäksi useiden muidenkin tieteenalojen sovelluksissa. Lämpöyhtälö, joka tunnetaan myös diffuusioyhtälönä, kuvaa jonkin suureen esimerkiksi lämmön johtumista aineissa ajan kuluessa. Pitkän ajan kuluttua tilanne tasapainottuu, jolloin lämmön määrä pysyy ajan suhteen vakiona tarkasteltavan alueen joka pisteessä. Tällaista täysin stabiloitunutta tilannetta voidaan mallintaa Laplacen yhtälöllä. Laplacen yhtälön toteuttavia funktioita kutsutaan harmonisiksi funktioiksi. Tutkielmassa johdetaan perusratkaisu ja keskiarvoperiaate molemm…
Meksikas revolūcija un pilsoņu karš padomju un mūsdienu krievu historiogrāfijā
2019
Maģistra darbs Meksikas revolūcija un pilsoņu karš padomju un mūsdienu krievu historiogrāfijā pēta atšķirības tajās. Tas parāda, ka padomju historiogrāfijā personai nebija būtiskas lomas procesu attīstībā. Visu noteica šķiru cīņa, tās loģika saskaņā ar dialektiskā materiālisma principiem. Pilnīgi pretēji mūsdienu krievu historiogrāfijā tiek noliegta šķiru cīņas loma, tiek izcelta personības nozīme revolūcijas un pilsoņu kara notikumos un tiem sekojošā valsts stabilizācijā. Īpaša uzmanība maģistra darbā tiek pievērsta valsts un Baznīcas attiecībām, armijas reformai un agrāro problēmu risināšanai Meksikas revolūcijas un pilsoņu kara notikumos.
Party autonomy regarding jurisdiction under the property regimes regulations
2021
The main accomplishment of the Property Regimes Regulations lies in their bringing more coherence into the cross-border family law adjudication. In the field of international jurisdiction, they strive to align the competence in couples? patrimony disputes to that in succession and in separation proceedings, or else to align the competence of the courts to the applicable law. These tendencies are clearly visible in the Regulations? provisions on choice of court agreements. Namely, the Regulations allow for such agreements, but severely limit parties? choice and the possible effects of these clauses. When succession or separation proceedings are pending, it is often only possible to institute…
Kritiskā domāšana laikmeta kontekstā
2018
Kritiskās domāšanas pamats ir domāšana, par kuru prāta (mind) filosofijā un epistemoloģijā ir daudz un dažādu viedokļu. Lai sekmētu kritisko domāšanu, ir jāseko labā/ļaunā, skaistā/neglītā, patiesā/melīgā, zināšanu/neziņas un citu ētisku un estētisku norišu situācijai sabiedrībā, jāanalizē un jāveicina pozitīvi ievirzītas prakses, nenoliedzot to, ka pozitīvās tendences ir iespējams atšķirt no negatīvajām (cinisms, nihilisms, relatīvisms, skepticisms, šovinisms u.c.), kas pavada ideoloģiski un negatīvi emocionāli ievirzītu kriticismu.
En kjede er aldri sterkere enn det svakeste leddet… : en tverrsnittstudie av farmasøyters erfaring med informasjonskvaliteten på den elektroniske res…
2013
Masteroppgave i helse- og sosialinformatikk HSI500 - Universitetet i Agder 2013 The introduction of e-prescription is an important measure in order to reduce errors and unintended incidents related to pharmaceutical treatment. One of the risk factors related to e-prescription is the availability of quality assured and updated pharmaceutical information. The purpose of the study was to assess pharmacists’ experience of the information quality of the prescription, in terms of discrepancies and interventions, in an introductory phase of e-prescription in Norway. The background of the study was surveyed success factors when introducing e-prescription for physicians.The research question to be a…