Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Rotation groups"”.
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Analysis of crystallographic texture information by the hyperspherical harmonic expansion
… with the advantage that this expansion allows rotations to be described by angles that directly relate to the axis and angle of a rotation. Apart from the straightforward and intuitive presentation of orientation statistics that this allows, the utility of the hyperspherical harmonic expansion …
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Crossing educational borders : the effects of state financial aid on undocumented students' pursuit of higher education
… Current Population Survey (CPS) Merged Outgoing Rotation Groups (MORG) data from 1998-2017, I exploit the time variation in the passage of the laws to evaluate the effects of state financial aid has on undocumented students' decision to attend college. In my preferred specification, I find that …
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Geometric Dimensionality Reduction
… (Livschitz-Gu-Eyunni) that utilizes Multicomplex rotation groups and polyspherical coordinates to define a single tuneable logarithmic map from ℝ 2푛 to ℝ 푛+1 with deterministic time complexity, geometric tunability, and semi-reversibility. Significant breakthroughs in the dissertation include …
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On Projective Characters of Rotation Sub- Group
… with Weyl group W( £), and let W+{<f) denote its rotation subgroup. In [173 » the projective representations of the rotation subgroup W ( 9) have been determined from those of W( $) for each root system $. This is done by constructing non-trivial central extensions of W ( $) via the double …
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On Projective Characters of Rotation Sub- Group
… with Weyl group W( £), and let W+{<f) denote its rotation subgroup. In [173 » the projective representations of the rotation subgroup W ( 9) have been determined from those of W( $) for each root system $. This is done by constructing non-trivial central extensions of W ( $) via the double …
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Machine Learning with Geometric Algebra: Multivectors for Modelling, Understanding and Computing
… domains: Chapter 2 tackles regression tasks on rotation groups and molecular geometry optimization; Chapter 3 explores protein modelling and structure prediction; Chapter 4 addresses 3D camera pose estimation and 3D line alignment; Chapter 5 focuses on the solution of partial differential …
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Three-Dimensional spatial memory graining using virtual reality : effects of reference frame and point-of-view
… first to investigate the effects of using a Self-rotation vs. an Array-rotation assumption when transforming mental models of an environment, and to see whether subjects can change rotation modes easily. Also, does performance depend on the point-of-view (Inside vs. Outside)? Subjects (n=29) had …
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An analysis of the methyl rotation dynamics in the So (x' A) and T (a A) states of thioacetaldehyde from Pyrolysis jet spectra /
… (a=0°,e=0"') with a barrier height to internal rotation of 541.5 cm"^ which is to be compared to 549.8 cm"^ obtained from the microwave experiment. The conformation of the upper T^ electronic state was found to be staggered (a=24 . 68° ,e=-45. 66° ) . The saddle point in the path traced out by …