Search for dissertations about: "Second orders"

Showing result 1 - 5 of 144 swedish dissertations containing the words Second orders.

  2. 1. Computing abelian varieties over finite fields

    Author : Stefano Marseglia; Jonas Bergström; Christophe Ritzenthaler; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; abelian varieties; finite fields; period matrices; ideal classes; orders; number fields; integral matrices; Mathematics; matematik;

    Abstract : In this thesis we address the problem of developing effective algorithms to compute isomorphism classes of polarized abelian varieties over a finite field and of fractional ideals of an order in a finite product of number fields.There are well-known methods to efficiently compute the classes of invertible ideals of an order in a number field, but not much has previously been known about non-invertible ideals. READ MORE

  4. 2. Quaternion Orders and Ternary Quadratic Forms Orders of Class Number One and Representations of Algebraic Integers by Quadratic Forms

    Author : Elise Björkholdt; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quaternion order; ternary quadratic form; class number; even Clifford algebra; quaternion algebra; embedding number; 11E12; 16H05; 11E20; 11E25; 11E88; even Clifford algebra;

    Abstract : Let R be the ring of integers in a totally real quadratic field K. The purpose of the thesis is to study totally definite quaternion R-orders and representations of elements in R by totally positive definite integral ternary quadratic forms. The thesis consists of three papers. READ MORE

  5. 3. Laser diode systems for photodynamic therapy and medical diagnostics

    Author : Eva Samsöe Andersen; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quasi-phasematching; photodynamic therapy; laser-induced fluorescence; medical laser systems.; Histology; cytochemistry; histochemistry; tissue culture; Histologi; Laserteknik; Laser technology; cytokemi; histokemi; vävnadskultur; Diagnostik; Diagnostics; second harmonic generation; pulsed lasers; spatial filtering; Diode lasers; optical feedback; Fysicumarkivet A:2004:Samsöe Andersen;

    Abstract : This work concerns techniques for improvement of the coherence properties of diode lasers so that they may be used in two specific medical applications: (Interstitial) photodynamic therapy (PDT) and laser-induced fluorescence diagnostics. In the first application, spatial coherence is crucial, since the treatment light should be delivered through relatively thin optical fibers to optimize treatment and to facilitate minimally invasive treatment. READ MORE

  6. 4. Organizing Creativity and Creative Organizing at a high tech company

    Author : Anna Grzelec; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; organizational creativity; orders of worth; French pragmatic sociology; boundary work; engineering;

    Abstract : In today’s society, creativity, in close collaboration with innovation, is considered key to the success of many businesses. On the one hand, organizations need to organize people’s efforts and to control the outcomes of work, while on the other, creativity and innovation require the space for play and freedom. READ MORE

  7. 5. Streaming Aggregation using Reconfigurable Hardware

    Author : Prajith Ramakrishnan Geethakumari; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Streaming; Aggregation; Dataflow; FPGA;

    Abstract : High throughput and low latency streaming aggregation is essential for many applications that analyze massive volumes of data in real-time. In many cases, high speed stream aggregation can be achieved incrementally by computing partial results for multiple windows. READ MORE