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.
Results
Showing 1 to 20 of 128 for “"geodesic"”.
-
Geodesic Problems for Mobile Robots
… Maximum Principle to analytically characterize geodesics for it. To obtain a notion of shortest, time is optimized. Finally, we present an algorithm for computing optimal coordination of two polygonal robots without differential constraints. Each robot has a reference point that must lie on a …
-
Geodesic Correspondences Between Riemannian Spaces
Made available in DSpace on 2014-12-05T21:50:02Z (GMT). No. of bitstreams: 1 0010558.pdf: 1706503 bytes, checksum: d50bc315b8adae48a1ea19a7fa22382f (MD5) Previous issue date: 1954
-
Totally geodesic surfaces with arbitrarily many compressions
A closed totally geodesic surface in the figure eight knot complement remains incompressible in all but finitely many Dehn fllings. In this thesis, we show that there is no universal upper bound on the number of such fillings, independent of the surface. This answers a question of Ying-Qing Wu.
-
Aspheric geodesic lenses for an integrated optical spectrum analyser
Abstract available p. xiii-xiv
-
Design and an automated parametric study of geodesic domes
An automated parametric investigation of geodesic domes is conducted in this study. A brief description of the stiffness method of matrix structural analysis is included in addition to a discussion of the fully-stressed design procedure via the stress-ratio method. Automated solution algorithms …
-
A geodesic finite-difference time-domain model of magnetized plasma
… by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm …
-
Fast and exact geodesic computation using Edge-based Windows Grouping.
Computing discrete geodesic distance over triangle meshes is one of the fundamental problems in computational geometry and computer graphics. As the “Big Data Era” arrives, a fast and accurate solution to the geodesic computation problem on large scale models with constantly increasing resolutions …
-
Functional inequalities and the curvature dimension inequality on totally geodesic foliations
… foliations with bundle-like metric and totally geodesic leaves, or shortly, totally geodesic foliations. Under a certain curvature condition, we obtain (1) Sobolev-isoperimetric inequalities, global Poincar\'e inqualities, and a lower bound for Cheeger's isoperimetric constant, (2) Poincar\'e …
-
Motion Planning along Manifolds with Geodesic Convexity and Analytic Inverse Kinematics
… configuration spaces. Our analysis utilizes geodesic convexity to achieve the same guarantees on Riemannian manifolds, and we leverage this to produce motion plans for mobile robots whose arms have unbounded revolute joints. In the second chapter, we specifically consider the problem of …
-
INVESTIGATION OF RESISTIVE GEODESIC ACOUSTIC MODE IN THE EDGE OF STOR-M TOKAMAK
A new resistive Geodesic Acoustic Mode (GAM) theory is developed by two-fluids analysis and resistive gyro-kinetic formulation in this thesis. An analytical expression is obtained for the resistive GAM frequency. This theory suggests a large collision frequency will prohibit the parallel current in …
-
The Geodesic Gauss Map and Ruh-Vilms theorem for a Hypersurface in S^{n}
We are interested to work on normal homogeneous space and in this space we calculated Live-Civita connection and we derived a useful equation 2.17. The Ruh-Vilms theorem is a statement about the Gauss map for a submanifold of R^{n+1} . Our aim is to prove, an isometrically immersed hypersurface f : …
-
Efficient facial animation integrating Euclidean and geodesic distance-based algorithms into radial basis function interpolation.
… covering a review of Euclidean and geodesic distance-based algorithms, and proposing a hybrid approach that tries to take the advantages of the two previous methods aided by pre-processed distance data to fasten the computations. Using motion capture performance based on the Facial …
-
The geodesic works of Richard Buckminster Fuller, 1948-68 : (the universe as a home of man)
The thesis investigates the geodesic structure and dome phase in the corpus of Richard Buckminster Fuller's artifactual production and writings. It offers a history of the meteoric rise of the geodesic structure, its production, deployment, reception and subsequent marginalization. The geodesic …
-
A techno-economic evaluation of the geodesic dome as a possible form of low-income house in Southern Africa
… in a successful marriage, brings the geodesic dome to light. The conclusion reached is that in economic, technical and cultural terms, the dome compares favourably with conventional low-income housing. The social acceptance of the structure is a topic of research beyond the scope of …
-
Slice sampling on Riemannian manifolds
… on general Riemannian manifolds we introduce a geodesic-based hybrid slice sampler, called geodesic slice sampler. Under mild regularity assumptions, we establish reversibility with respect to the target distribution for this sampler and positive semi-definiteness of the corresponding operator. …
-
GEODESICS IN LORENTZIAN MANIFOLDS
<p>We present an extension of Geodesics in Lorentzian Manifolds (Semi-Riemannian Manifolds or pseudo-Riemannian Manifolds ). A geodesic on a Riemannian manifold is, locally, a length minimizing curve. On the other hand, geodesics in Lorentzian manifolds can be viewed as a distance between …
-
Certain free group functions and untangling closed curves on surfaces
… addresses the problem of untangling closed geodesics in finite covers of hyperbolic surfaces. Our motivation comes from results of Scott and Patel. Scott's result tells us that one can always untangle a closed geodesic on a hyperbolic surface in a finite degree cover. Our goal is to quantify …
Page 1 of 7