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 20 of 201 for “"Bilinear"”.
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Bilinear and Degrading Bilinear Seismic Response of Multistory Frames
Made available in DSpace on 2014-12-10T22:21:49Z (GMT). No. of bitstreams: 1 7219853.pdf: 9140643 bytes, checksum: a9c2d8030c8e045121a274e4684c67c3 (MD5) Previous issue date: 1972
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Filtering for bilinear systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.
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Signal approximation using the bilinear transform
… discrete-time representation according to the bilinear transform. Since there is a one-to-one mapping between the continuous-time and discrete-time frequency axes, the bilinear representation avoids any frequency aliasing distortions. We devote the first portion of this thesis to some …
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Structural controllability of driftless bilinear control systems
… the structural controllability of driftless bilinear systems with sparse matrices. We begin with a rigorous introduction to the controllability of nonholonomic nonlinear systems. We present the notion of structural controllability and the fact that the controllability of linear systems is a …
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Representation Learning for Extrapolation via Bilinear Transduction
… as out-of-distribution (OOD). Using a proven bilinear transduction [1] method for accurately predicting on OOD examples, we propose a method to apply this framework to learned representations instead of hand designed state representations. This work is geared towards enabling the bilinear …
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Bilinear Immersed Finite Elements For Interface Problems
In this dissertation we discuss bilinear immersed finite elements (IFE) for solving interface problems. The related research works can be categorized into three aspects: (1) the construction of the bilinear immersed finite element spaces; (2) numerical methods based on these IFE spaces for solving …
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Leibniz-type rules associated to bilinear pseudodifferential operators
Leibniz-type rules associated to bilinear pseudodifferential operators have received considerable attention due to their applications in obtaining fractional Leibniz rules and the study of various partial differential equations. Generally speaking, fractional Leibniz rules provide a way of …
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Matrix algorithms for bilinear estimation problems in chemometrics
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1985
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Linear and bilinear restriction estimates for the Fourier transform
… for the Fourier transform. The first is a bilinear estimate for the light cone when the exponents are on a critical line. This extends results proven by Wolff, Tao and Lee-Vargas. The second result is a linear restriction estimate for surfaces with positive Gaussian curvature that improves …
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Interpolation Methods for the Model Reduction of Bilinear Systems
Bilinear systems are a class of nonlinear dynamical systems that arise in a variety of applications. In order to obtain a sufficiently accurate representation of the underlying physical phenomenon, these models frequently have state-spaces of very large dimension, resulting in the need for model …
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Bounds for Bilinear Analogues of the Spherical Averaging Operator
… quasi-Banach, and sparse bounds for several bilinear and multilinear operators that generalize the linear spherical average to the multilinear setting, and maximal variants of these operators, with an emphasis on the triangle averaging operator and the bilinear spherical averaging operator.
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Cryptographic Key Distribution In Wireless Sensor Networks Using Bilinear Pairings
It is envisaged that the use of cheap and tiny wireless sensors will soon bring a third wave of evolution in computing systems. Billions of wireless senor nodes will provide a bridge between information systems and the physical world. Wireless nodes deployed around the globe will monitor the …
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A unified framework for identifiability analysis in bilinear inverse problems
Bilinear inverse problems (BIPs), the resolution of two vectors given their image under a bilinear mapping, arise in many applications. Without further constraints, BIPs are usually ill-posed. In practice, properties of natural signals are exploited to solve BIPs. For example, subspace constraints …
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Advances in signatures, encryption, and E-Cash from bilinear groups
… on a special type of algebraic group called bilinear groups. 1. Re-Signatures: We present the first public key signature scheme where a semi-trusted proxy, given special information, can translate Alice's signature on a message into Bob's signature on the same message. The special …
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Strategies For Recycling Krylov Subspace Methods and Bilinear Form Estimation
… on three main components. At first, we target bilinear and quadratic form estimation. Bilinear form $c^TA^{-1}b$ is often associated with long sequences of linear systems, especially in optimization problems. Thus, we devise algorithms that adapt cheap bilinear and quadratic form estimates for …
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Investigating power and fault analysis with specific application to bilinear pairings
The security of bilinear pairings against implementation attacks such as side channel and fault attacks is largely an uncharted area of research. Apart from one publication on the topic, coverage of this area is non-existent. Armed with the fact that the number of applications based on bilinear …
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Approximate Modal Analysis of Bilinear Mdf Systems Subjected to Earthquake Motions
Made available in DSpace on 2014-12-13T19:31:49Z (GMT). No. of bitstreams: 1 7913633.pdf: 6590063 bytes, checksum: ccad4f776dfabf747294fb71c86b7b18 (MD5) Previous issue date: 1978
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On the implementation of composite-order bilinear groups in cryptographic protocols
… rational functions and divisors on such curves. Bilinear pairings on elliptic curves are explained. We then introduce bilinear groups of composite order and how they are used to create pairing-based cryptosystems. We present two cryptosystems using composite-order groups. We conclude with a …
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Bilinear inverse problems with sparsity: Optimal identifiability conditions and efficient recovery
Bilinear inverse problems (BIPs), the resolution of two vectors given their image under a bilinear mapping, arise in many applications. Without further constraints, BIPs are usually ill-posed. In practice, parsimonious structures of natural signals (e.g., subspace or sparsity) are exploited. …
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Bilinear Discretization of Integrable Quadratic Vector Fields: Algebraic Structure and Algebro-Geometric Solutions
In der Arbeit werden die Integrabilitätseigenschaften der Hirota- Kimura Diskretisierungen (HK-Diskretisierungen) von algebraisch integrablen Systemen gewöhnlicher Differentialgleichungen beschrieben. Dieser Diskretisierungs-ansatz, der zuerst von Kahan beschrieben wurde und später von Hirota und …
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