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Showing 1 to 20 of 359 for “"Mappings"”.
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Cellular mappings on manifolds
<p>Cellular mappings of a manifold onto itself possess many properties of homeomorphisms. In particular; for n <strong>≠</strong> M, a continuous function defined from a manifold onto itself is cellular if and only if it can be uniformly approximated by homeomorphisms. This thesis is a study of …
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Group-invariant CR mappings
We consider group-invariant CR mappings from spheres to hyperquadrics. Given a finite subgroup $\Gamma \subset U(n)$, a construction of D'Angelo and Lichtblau yields a target hyperquadric $Q(\Gamma)$ and a canonical non-constant CR map $h_{\Gamma} : S^{2n-1}/\Gamma \to Q(\Gamma)$. For every $\Gamma …
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Some New Classes of Mappings Between the Closed and the Pseudo-Open Mappings
Made available in DSpace on 2014-12-11T18:23:51Z (GMT). No. of bitstreams: 1 7219939.pdf: 2665812 bytes, checksum: 0d7065480e0d61b61e783136c5b23351 (MD5) Previous issue date: 1972
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Alternative approaches to optophonic mappings
This thesis presents a number of modifications to a blind aid, known as the video optophone, which enables a blind user to more readily interpret their local environment for enhanced mobility and navigation. Versions of this form of blind aid are generally both difficult to use and interpret, and …
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Quasiconformal mappings on planar surfaces
… different projects concerning quasiconformal mappings on planar surfaces. In the first two projects we show that a priori weaker conditions still suffice to prove quasiconformality. The geometric definition states that an orientation-preserving homeomorphism f:U → f(U) is quasiconformal if …
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Quasiconformal mappings and fractal geometry
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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A class of bivariate copula mappings /
In this thesis we analyze one particular mapping in the set of bivariate copulas, which allows flexible construction of new copulas and families of copulas. In particular, we suggest mapping which depends on a univariate function. We provide necessary and sufficient conditions on this univariate …
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SPARSE RECOVERY BY NONCONVEX LIPSHITZIAN MAPPINGS
… which combines nonconvex Lipschitzian-type mappings with canonical orthogonal projectors. The first are aimed at uniformly enhancing the sparseness level by shrinking effects, the latter to project back into the feasible space of solutions. In the second part of this thesis we study two …
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Navigating Molecular Evolution Using Substitution Mappings
… first proposed in 2002, Bayesian substitution mappings have found less use than might have been expected in the field of molecular evolution. Here, I first create a sequence simulator capable of generating true substitution mappings for simulated data under any time-reversible model in order to …
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Fixed Point Theorems for Nonexpansive Mappings
Made available in DSpace on 2014-12-09T22:17:56Z (GMT). No. of bitstreams: 1 7013546.pdf: 2174071 bytes, checksum: f1cafc313cc47fbfa02e94c0aa6756f1 (MD5) Previous issue date: 1969
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Low complexity extensions of non-linear mappings
… In this thesis we present analog non-linear mappings with very simple and flexible design methods, low encoding and decoding complexity, and great robustness against noise. All these characteristics make them very versatile codes ready to be applied in many different scenarios. For example, …
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Topographic mappings and feed-forward neural networks
… is a study of the generation of topographic mappings - dimension reducing transformations of data that preserve some element of geometric structure - with feed-forward neural networks. As an alternative to established methods, a transformational variant of Sammon's method is proposed, where …
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Deleuzian Mappings With Rafael Chirbe's "little Machines"
<p>Spanish (Valencian) novelist Rafael Chirbes, and how this narrative production coincides with several of the philosophical concepts of Gilles Deleuze and Félix Guattari included in works that they co-authored or in those written individually by Deleuze. The novels considered in this study are La …
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Order Continuous Mappings on General Koethe Spaces
Made available in DSpace on 2014-12-09T22:17:32Z (GMT). No. of bitstreams: 1 6612393.pdf: 1853667 bytes, checksum: 23df5d50eea515ba4e80a0351e1abe19 (MD5) Previous issue date: 1966
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Proper holomorphic mappings in several complex variables
A holomorphic mapping f from a bounded domain D in $\doubc\sp{n}$ to a bounded domain $\Omega$ in $\doubc\sp{N}$ is proper if the sequence $\{f(zj)\}$ tends to the boundary of $\Omega$ for every sequence $\{zj\}$ which tends to the boundary of D. Let f be a proper holomorphic mapping from the unit …
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Defining, classifying and optimising fermion–qubit mappings
… classifying, and optimising fermion–qubit mappings, a crucial step in simulating fundamental physics on quantum computers. This work surveys the existing catalogue of fermion–qubit mappings, exposing gaps and devising new optimisation routines to aid fermionic simulation through a …
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