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Topic Area: Math

Displaying records 211 to 220 of 237 records.
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211. A First Stop Towards Photorealistic Rendering of Coated Surfaces and Computer Based Standards of Appearance
Topic: Math
Published: 11/1/1999
Authors: Fern Y Hunt, Egon Marx, G W Meyer, Theodore Vincent Vorburger, P A Walker, H B Westlund
Abstract: We seek to explore the feasibility of producing computer graphic images to visualize the color and gloss of surfaces using optical and surface topographical data.

212. The DLMF Project: A New Initiative in Classical Special Functions
Topic: Math
Published: 6/1/1999
Author: Daniel W Lozier
Abstract: NIST (formerly, National Bureau of Standards) has started an ambitious project that aims to produce a successor to Abramowitz and Stegun's {\em Handbook of Mathematical Functions}, published by the National Bureau of Standards in 1964 and reprinted b ...

213. Stable Quasicrystalline Sphere Packing
Topic: Math
Published: 3/1/1999
Authors: Eric J Cockayne, M Mihalkovic
Abstract: Wills (1990, J. Phys., Paris 51, 1061), found a method relating certain decagonal disk packings to decagonal sphere packings with high packing fractions. Applying this technique to the decagonal rectangle-triangle tiling generated by inflation, we ...

214. Logarithmic Convexity and the 'Slow Evolution' Constraint in Ill-Posed Initial Value Problems
Topic: Math
Published: 1/15/1999
Author: Alfred S Carasso
Abstract: This paper examines a wide class of ill-posed initial value problems for partial differential equations, and surveys logarithmic convexity results leading to Hoelder-continuous dependence on data for solutions satisfying prescribed bounds. The discus ...

215. On The Reversion of an Asymptotic Expansion and the Zeros of the Airy Functions
Topic: Math
Published: 1/15/1999
Authors: Bruce R Fabijonas, Frank William John Olver
Abstract: The general theories of the derivation of inverses of functions from their power series and asymptotic expansions are discussed and compared. The asymptotic theory is applied to obtain asymptotic expansions of the zeros of the Airy functions and the ...

216. On the Distribution of the Limit of Products of I.I.D 2 x 2 Random Stochastic Matrices
Topic: Math
Published: 1/15/1999
Authors: A Mukherjea, Anastase Nakassis, J S Ratti
Abstract: This article extends the results of [3] by establishing sufficient conditions for the limit distribution of products of i.i.d. 2 x 2 random stochastic matrices to be continuous singular, when the support of the distribution of the individual random m ...

217. Surface Energy Formula for a Hsieh-Clough-Tocher Element
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6246
Topic: Math
Published: 1/1/1999
Authors: Marjorie A McClain, Christoph Johann Witzgall

218. Active Multimedia Documents for Mobile Services
Topic: Math
Published: 12/7/1998
Author: O E. Kia
Abstract: Multimedia content is designed for many purposes and the services that are associated with them rely heavily on technologies that address representation, processing, and transmission of that content. This paper presents a new model that refines the m ...

219. Finite Precision Representation of the Conley Decomposition
Report Number: 6182
Topic: Math
Published: 12/1/1998
Author: Fern Y Hunt
Abstract: We present the theoretical basis for a novel way of studying and representing the long time behavior of finite dimensional maps. It is based on the sample paths of a Markov chain. Applications of the method to the approximation of attractors of map ...

220. The OOF Manual: Version 1.0
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6256
Topic: Math
Published: 11/1/1998
Authors: W C Carter, Stephen A Langer, Lin-Sien H Lum

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