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 7 of 7 for “"nullspace"”.
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Entanglement Breaking Channels in Quantum Information
… for such channels. We further consider the nullspace structure of entanglement breaking channels, in particular proving that every operator space of trace zero matrices is the nullspace of such a channel. We connect the nullspace of entanglement breaking channels with private subspaces and …
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A compositional approach to robotic impedance control
… robotic shoe-shining) were implemented. Finally, nullspace projection methods for redundant manipulators are discussed, and an impedance based implementation of the nullspace projection method is presented.
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Aspects of index theory
… theory of linear maps with finite dimensional nullspaces and cokernels. In particular, the index of such a map is the dimension of its nullspace minus that of its cokernel. We survey some aspects of this theory in this thesis. In particular, the first chapter talks about general index theory, …
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Index theorems and magnetic monopoles on asymptotically conic manifolds
… to the case where [Iota] has constant rank nullspace bundle at infinity, using a b-to-scattering transition calculus of pseudodifferential operators. Finally I discuss magnetic monopoles, which are solutions to the Bogomolny equation ... principal bundle over a complete 3-manifold, and I …
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Software-Defined Radio Implementation of Two Physical Layer Security Techniques
… inject Artificial Noise (AN) into the receiver's nullspace. The AN is consequently not seen by the intended receiver, however, it will interfere with eavesdroppers experiencing independent channel fading. The second design involves a single-carrier Alamouti coding system with pseudo-random phase …
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A provably stable and high-order accurate finite difference approximation for the incompressible boundary layer equations
… remove the singularities associated with the nullspace of the nonlinear dis-crete spatial operator. Numerical experiments that verify the high-order accuracy of the scheme and coincide with the theoretical results are presented. The numerical results are compared with the well-known Blasius …
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Accelerating magnetic resonance imaging by unifying sparse models and multiple receivers
… of the image. This technique operates in the nullspace of the data observation matrix, preserving the acquired data without resorting to techniques for constrained optimization. While this framework is presented generally, the effectiveness of the implementation depends on the choice of …