Cohomological dimension and cubic surfaces

Cataloged from PDF version of article.In this thesis we give necessary and sufficient conditions for a curve C on a given cubic surface Q so that Q − C is affine. We use this to give a simpler proof of cd(P 3 − C) = 1 by using Budach’s method for these curves.We investigate the nature of curves on cubic surfaces such that the cubic surface minus these curves is an affine variety. We give combinatorial conditions for the existence of such curves.Türkmen, İnan UtkuM.S

Indecomposable cycles on a product of curves

Ankara : The Department of Mathematics, Bilkent University, 2012.Thesis (Ph. D.) -- Bilkent University, 2012.Includes bibliographical references leaves 48-51.Türkmen, İnan UtkuPh.D

What Makes Us Feel Good? A Data-driven Investigation of Positive Emotion Experience

Is feeling grateful a different kind of experience than feelings of other positive emotions like pride, awe, or love? Here, we use semantic space theory to test which positive emotional experiences are distinct from each other based on in-depth personal narratives of experiences involving 22 positive emotions (n = 165; 3,592 emotional events). A bottom-up computational analysis was applied to the transcribed text; unsupervised clustering was employed to maximise internal granular consistency (i.e., the clusters being as different as possible from each other while internally as homogenous as possible). The analysis yielded distinct positive emotion experiences, characterised by admiration, amusement, being moved, feeling respected, excitement, hope, interest, lust, positive surprise, pride, sensory pleasure, and tenderness. Applying bottom-up language analysis techniques to rich accounts of emotional experiences reveals that there are at least 12 unique dimensions of positive emotion experience in daily life