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 2130 for “"exponential"”.
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Complex exponential smoothing
Exponential smoothing is one of the most popular forecasting methods in practice. It has been used and researched for more than half a century. It started as an ad-hoc forecasting method and developed to a family of state-space models. Still all exponential smoothing methods are based on time …
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Independence in exponential fields
Zilber constructed a class of exponential�fields CFSK,CCP whose models have exponential-algebraic properties similar to the classical complex field with exponentiation Cexp. In this thesis we study this class and the more general classes ECFSK, also defined by Zilber, and ECF, studied by Zilber and …
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An exponential interpolation series
The convergence properties of the permanent exponential interpolation series f(Z) = 1<sup>Z</sup>f(0) + (2<sup>Z</sup> - 1<sup>Z</sup>)Δf(0) + (3<sup>Z</sup> - 2.2<sup>Z</sup> + 1<sup>Z</sup>/2!)Δ(Δ - 1)f(0) + … have been investigated. Using the following notation U<sub>n</sub>(Z) = …
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Cosmological dynamics of exponential gravity
The objective of this thesis is to explore several hotly debated current issues in modern cosmology, with a focus on f(R) gravity. In chapter 1 we present a review of modern theoretical cosmology. We begin by introducing some fundamental cosmological concepts, followed by a discussion of the field …
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The Theory of Exponential Differential Equations
This thesis is a model-theoretic study of exponential differential equations in the context of differential algebra. I define the theory of a set of differential equations and give an axiomatization for the theory of the exponential differential equations of split semiabelian varieties. In …
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A non-exponential communication network statistical study
… models are proposed. Model 1 assumes messages of exponentially distributed length arrive in group as a Poisson process to the channel. The group size is geometrically distributed. Model 2 represents each communication node in the network by a selective multiservers queue, to which messages of …
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Exponential integrators: tensor structured problems and applications
… integrate such systems involves using exponential integrators. In general, these kinds of schemes do not require the solution of (non)linear systems but rather the action of the matrix exponential and of some specific exponential-like functions (known in the literature as φ-functions). …
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Estimation in Truncated Exponential Family of Distributions
… estimator does not exist in a truncated negative exponential distribution on 0,T , T > 0 known, whenever the sample mean x (GREATERTHEQ) T/2.</p> <p>(ii) Broeder 1955 shows that the maximum likelihood estimator of the scale parameter of a truncated gamma distribution, with the shape parameter …
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Exponential Decay for the Saint-Venant Principle
We consider a semi-infinite beam B = {(z,t)(VBAR)z(ELEM)(OMEGA), t (GREATERTHEQ) 0} where (OMEGA) is a bounded domain in (//R)('2) with the cone property and a C('3)-smooth boundary. By applying semigroup theory and spectral theory, we show that in our formulation Saint-Venant's principle is true …
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Exponential bounds on error probability with Feedback
Feedback is useful in memoryless channels for decreasing complexity and increasing reliability; the capacity of the memoryless channels, however, can not be increased by feedback. For fixed length block codes even the decay rate of error probability with block length does not increase with feedback …
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Exponential representations of the canonical commutation relations,
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1969.
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Characterization of the MIT Graphite Exponential Pile
… engineering. MIT still retains a graphite exponential pile, recently recommissioned back into service, and utilized by students for hands-on demonstration of classroom topics like buckling, subcritical multiplication, and 1 group diffusion. For most effective use, the characteristics of the …
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Viscoelastic free surface instabilities during exponential stretching
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2002.
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Minimum bias designs for an exponential response
For the exponential response η<sub>u</sub> = α + βe<sup>γZ<sub>u</sub></sup> (u = 1,2,…,N) where α and β lie on the real line (-∞,∞), and γ is a positive integer; the designs are given which minimize the bias due to the inherent inability of the approximation function ŷ<sub>u</sub> = …
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Uniform exponential growth of non-positively curved groups
… which finitely generated groups have uniform exponential growth. We give an overview of various developments of non-positive curvature in group theory and past results related to building free semigroups in the setting of non-positive curvature. We highlight joint work with Radhika Gupta and …
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Additive stucture, rich lines, and exponential set-expansion
… bivariate polynomial set functions which induce exponential expansion on all finite sets of real numbers.
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Queue with Random Arrivals and Exponential Service Times
Queues for service of one kind or another arise in many different fields of activity. In recent years a considerable amount of research has been conducted into the properties of simplified mathemtical models of such queuing systems. Initially, it was my aim to present a short but balanced survey of …
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