dc.contributor.advisor | Ortega, Eduardo | |
dc.contributor.author | Hetland, Einar Våge | |
dc.date.accessioned | 2022-10-27T17:19:47Z | |
dc.date.available | 2022-10-27T17:19:47Z | |
dc.date.issued | 2022 | |
dc.identifier | no.ntnu:inspera:104646180:21485009 | |
dc.identifier.uri | https://hdl.handle.net/11250/3028718 | |
dc.description.abstract | I denne avhandlingen ser vi hovedsakelig på isomorfiproblemet for den reduserte vridde gruppe- og gruppoide-Lᵖ-operatoralgebraen. For en lokalkompakt gruppe G og en kontinuerlig 2-kosykel σ definerer vi den reduserte σ-vridde gruppe-Lᵖ-operatoralgebraen Fᵖ_λ(G,σ). Vi viser at hvis p≠ 2, så er to slike algebraer isometriske isomorfe hvis og bare hvis gruppene er topologiske isomorfe og 2−kosykelene er kohomologe. For en vridning ℰ over en étale gruppoide 𝒢 definerer vi den reduserte vridde grupppoide-Lᵖ-operatoralgebraen Fᵖ_λ (𝒢;ℰ). I avhandlingens hovedresultat viser vi at hvis gruppoidene er effektive og p≠ 2, så er to slike algebraer isometriske isomorfe hvis og bare hvis gruppoidene er isomorfe, og vridningene er ekte isomorfe. | |
dc.description.abstract | In this thesis we will mainly study the isomorphism problem for the reduced twisted group and groupoid Lᵖ−operator algebra. For a locally compact group G and a continuous 2-cocycle σ we will define the reduced σ-twisted Lᵖ-operator algebra Fᵖ_λ(G,σ). We will show that if p≠2, then two such algebras are isometrically isomorphic if and only if the groups are topologically isomorphic and the continuous 2-cocyles are cohomologous. For a twist ℰ over an étale groupoid 𝒢, we define the reduced twisted groupoid Lᵖ-operator algebra Fᵖ_λ(𝒢;ℰ). In the thesis main result, we show that if the groupoids are effective and p≠2, then two such algebras are isometrically isomorphic if and only if the groupoids are isomorphic and the twist are properly isomorphic | |
dc.language | eng | |
dc.publisher | NTNU | |
dc.title | Isomorphisms of Lᵖ-operator algebras arising from projective group and groupoid representations | |
dc.type | Master thesis | |