Search for dissertations about: "morphism"
Showing result 1 - 5 of 20 swedish dissertations containing the word morphism.
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1. Symbolic sequences, crucial words and iterations of a morphism
Abstract : .... READ MORE
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2. Cyclic Trigonal Riemann Surfaces of Genus 4
Abstract : A closed Riemann surface which can be realized as a 3-sheeted covering of the Riemann sphere is called trigonal, and such a covering is called a trigonal morphism. Accola showed that the trigonal morphism is unique for Riemann surfaces of genus g ≥ 5. This thesis will characterize the Riemann surfaces of genus 4 wiht non-unique trigonal morphism. READ MORE
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3. On the Moduli Space of Cyclic Trigonal Riemann Surfaces of Genus 4
Abstract : A closed Riemann surface which can be realized as a 3-sheeted covering of the Riemann sphere is called trigonal, and such a covering is called a trigonal morphism. Accola showed that the trigonal morphism is unique for Riemann surfaces of genus g ≥ 5. READ MORE
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4. Harmonic morphisms, Hermitian structures and symmetric spaces
Abstract : A harmonic morphism is a map between two Riemannian manifolds with the property that its composition with a local harmonic function on the codomain is a local harmonic function on the domain. Such a map is automatically a harmonic map, satisfying an additional partial conformality condition called horizontal (weak) conformality. READ MORE
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5. Compactified Configuration Space of Points on a Line and Homotopies of A_ infty Morphisms
Abstract : In this thesis we construct a configuration space model for a particular 2-colored dg operad encoding the structure of two A_infty algebras with two A_infty morphism and a homotopy between the morphisms. We determine the cohomology of this operad to be the well-known 2-colored operad encoding the structure of a two associative algebras and an associative algebra morphism between them. READ MORE