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Displaying records 61 to 70 of 227 records.
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61. Reconstructing the Past From Imprecise Knowledge of the Present: Some Examples of Non Uniqueness in Solving Parabolic Equations Backward in Time
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7783
Topic: Math
Published: 4/13/2011
Author: Alfred S Carasso
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908362

62. A Survey of Binary Covering Arrays
Topic: Math
Published: 4/7/2011
Authors: James F Lawrence, Raghu N Kacker, Yu Lei, David R Kuhn, Michael Forbes
Abstract: Two-valued covering arrays of strength t are 0--1 matrices having the property that for each t columns and each of the possible 2t sequences of t 0's and 1's, there exists a row having that sequence in that set of t columns. Covering arrays are an im ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51256

63. Arithmetic Progressions on Edwards Curves
Topic: Math
Published: 2/8/2011
Author: Dustin Moody
Abstract: We look at arithmetic progressions on elliptic curves known as Edwards curves. By an arithmetic progression on an elliptic curve, we mean that the x-coordinates of a sequence of rational points on the curve form an arithmetic progression. Previous ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907596

64. Applied and Computational Mathematics Division Summary of Activities for Fiscal Year 2010
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7762
Topic: Math
Published: 2/2/2011
Author: Ronald F Boisvert
Abstract: This report summarizes the technical work of the Applied and Computational Sciences Division (ACMD) of NIST s Information Technology Laboratory. Part I (Overview) provides a high-level overview of the Division s activities, including highlights of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907777

65. Approximating the Number of Bases for Almost All Matroids
Topic: Math
Published: 2/1/2011
Author: Brian Dale Cloteaux
Abstract: We define a class of matroids A for which a fully polynomial randomized approximation scheme (fpras) exists for counting the number of bases of the matroids. We then show that as the number of elements in a matroid increases, the probability that a m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900881

66. Changes
Topic: Math
Published: 1/3/2011
Author: Isabel M Beichl
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907604

67. Recommendation for Password-Based Key Derivation Part I: Storage Applications
Series: Special Publication (NIST SP)
Report Number: 800-132
Topic: Math
Published: 12/22/2010
Authors: Meltem Sonmez Turan, Elaine B Barker, William Edward Burr, Lidong Chen
Abstract: This Recommendation specifies techniques for the derivation of master keys from passwords or passphrases to protect stored electronic data or data protection keys.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907381

68. Assessing differences between results determined according to the Guide to the Expression of Uncertainty in Measurement
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 12/1/2010
Authors: Raghu N Kacker, Ruediger Kessel, Klaus-Dieter Sommer
Abstract: When the data consist of multiple results of measurement for a common measurand, often one needs to determine whether the results agree with each other. A result of measurement based on the Guide to the Expression of Uncertainty in Measurement (GUM) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906548

69. Derivation of Isosceles Trapezoidal Distribution
Topic: Math
Published: 12/1/2010
Authors: Raghu N Kacker, James F Lawrence
Abstract: It is known that, if the mid-point of a rectangular distribution is specified, the half-width is inexactly known, and the state of knowledge about the half-width may be represented by a narrower rectangular distribution then the resulting distributio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904335

70. Bochner Subordination, Logarithmic Diffusion Equations, and Blind Deconvolution of Hubble Space Telescope Imagery and Other Scientific Data
Topic: Math
Published: 11/30/2010
Author: Alfred S Carasso
Abstract: Generalized Linnik processes and associated logarithmic diffusion equations can be constructed by appropriate Bochner randomization of the time variable in Brownian motion and the related heat conduction equation. Remarkably, generalized Linnik char ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903667



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