Sökning: "Cup Product"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Cup Product.

  1. 1. Stacky Modifications and Operations in the Étale Cohomology of Number Fields

    Författare :Eric Ahlqvist; David Rydh; Alexander Schmidt; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stacks; ramified covers; étale cohomology; cup product; Massey product; Galois cohomology; building data; 2-cocycles; Matematik; Mathematics;

    Sammanfattning : This thesis consists of 4 papers. In Paper A we define stacky building data for stacky covers in the spirit of Pardini and give an equivalence of (2,1)- categories between the category of stacky covers and the category of stacky building data. LÄS MER

  3. 2. Building Data for Stacky Covers and the Étale Cohomology Ring of an Arithmetic Curve : Du som saknar dator/datorvana kan kontakta [email protected] för information

    Författare :Eric Ahlqvist; David Professor; Niels Borne; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Étale Cohomology; Number Field; Cup Product; Stacky Covers; Building Data; Ramified Covers; Mathematics; Matematik;

    Sammanfattning : This thesis consists of two papers with somewhat different flavours. In Paper I we compute the étale cohomology ring H^*(X,Z/nZ) for X the ring of integers of a number field K. As an application, we give a non-vanishing formula for an invariant defined by Minhyong Kim. LÄS MER

  4. 3. Modeling of evolving anisotropy at finite elasto-plastic strain

    Författare :Magnus Harrysson; Hållfasthetslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Simulation tools are used to a wide extent in the product development process today, both to obtain better products and to reduce the development time required. Anisotropic materials are utilized in many engineering applications. LÄS MER

  5. 4. Complicated vacuum extraction : focus on traction force

    Författare :Kristina Pettersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Introduction: Vacuum extraction is a common operative vaginal delivery in the final stage of labor, and generally considered a safe alternative to emergency cesarean section. However, there is insufficient evidence regarding the causes of the rare but severe perinatal complications that may occur, such as intracranial or subgaleal hemorrhage, and possibly also asphyxia related encephalopathy. LÄS MER

  7. 5. Utveckling av turistdestinationer genom samarbete

    Författare :Jörgen Elbe; Lena Larsson-Mossberg; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business studies; Tourist destinations; events; business development; cooperation; network perspective; Företagsekonomi; Turistdestinationer; evenemang; affärsutveckling; samarbete; nätverksperspektiv; Business studies; Företagsekonomi; Business Studies; företagsekonomi;

    Sammanfattning : In this thesis tourist destinations are considered as networks of business actors inside and outside the destination, such as producers of attractions or supporting services and different kinds of intermediaries. These actors are interdependent, since they provide the different components of a generic tourist product. LÄS MER