Sökning: "category O"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden category O.

1. 1. Challenges with Driverless and Unattended Train Operations

   Författare :Emil Jansson; Oskar Fröidh; Nils O.E. Olsson; Ingrid Johansson; Carl-William Palmqvist; Olov Lindfeldt; Ronghui Liu; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway; Automatic train operation; Driverless trains; Train driver; Roles; Automation challenges; Human senses; Trackside sensors; Transportsystem; Transport Systems; Transportvetenskap; Transport Science;

   Sammanfattning : Demand for transportation continues to increase, for both freight and passenger services. One of the most energy-efficient modes of transportation is rail. One solution to increase the attractiveness of rail transport is to introduce automatic train operation (ATO) with a high grade of automation (GoA). LÄS MER

3. 2. Aided Derbforgaill "The violent death of Derbforgaill" : A critical edition with introduction, translation and textual notes

   Författare :Kicki Ingridsdotter; Gregory Toner; Tomás Ó Cathasaigh; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Early Irish; Old Irish; Middle Irish; medieval Irish; aideda; death-tales; Derbforgaill; critical edition; manuscript; Tochmarc Emire; Serglige Con Culainn; medieval Irish literature; Celtic languages; Keltiska språk; Celtic Languages; keltiska språk;

   Sammanfattning : This dissertation contains a critical edition of the early Irish tale Aided Derbforgaill “the violent death of Derbforgaill”. It includes an introduction discussing the main thematic components of the tale as well as intertextuality, transmission and manuscript relationship. LÄS MER

4. 3. Algorithmically Guided Information Visualization : Explorative Approaches for High Dimensional, Mixed and Categorical Data

   Författare :Sara Johansson Fernstad; Mikael Jern; Jimmy Johansson; Jane Shaw; Matthew O. Ward; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Information visualization; data mining; high dimensional data; categorical data; mixed data;

   Sammanfattning : Facilitated by the technological advances of the last decades, increasing amounts of complex data are being collected within fields such as biology, chemistry and social sciences. The major challenge today is not to gather data, but to extract useful information and gain insights from it. LÄS MER

5. 4. Tensor Products on Category O and Kostant's Problem

   Författare :Johan Kåhrström; Volodymyr Mazorchuk; Henning Haahr Andersen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semi-simple Lie algebras; Tensor products; Kostant s problem; Primitive quotients; MATHEMATICS; MATEMATIK;

   Sammanfattning : This thesis consists of a summary and three papers, concerning some aspects of representation theory for complex finite dimensional semi-simple Lie algebras with focus on the BGG-category O.Paper I is motivated by the many useful properties of functors on category O given by tensoring with finite dimensional modules, such as projective functors and translation functors. LÄS MER

7. 5. Structure and representations of certain classes of infinite-dimensional algebras

   Författare :Brendan Frisk Dubsky; Volodymyr Mazorchuk; Martin Herschend; Rolf Farnsteiner; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; infinite-dimensional algebras; representation theory; category O; koszul; koszulity; injections; dihedral; preprojective; young lattice; Mathematics; Matematik;

   Sammanfattning : We study several infinite-dimensional algebras and their representation theory. In Paper I, we study the category O for the (centrally extended) Schrödinger Lie algebra, which is an analogue of the classical BGG category O. We decompose the category into a direct sum of "blocks", and describe Gabriel quivers of these blocks. LÄS MER