Sometimes the quilts were white for weddings, designMade up of stitches and shadows cast by stitches.And funerals? How do you sew night?   Michael Longley (1995), “The De...

s of the United States (pp. 1–62). Washington, DC: U.S. Department of Commerce. United States Census Bureau. (2005–2007). American Community Survey. Retrieved from http://www.census.gov/acs/www/Products/users_guide/

As people penetrate the Amazon interior, they build roads and clear large expanses of land. Over time, this process of deforestation creates forest fragments, islands of trees surrounded by a sea of pastures, farmland, and other degraded habitats. Laurance and his colleagues at the Smithsonian Tropical Research Institute are studying what happens to the forests when trees lose ground to agricul...

We show that several families of polynomials defined via fillings of diagrams satisfy linear recurrences under a natural operation on the shape of the diagram. We focus on key polynomials, (also known as Demazure characters), and Demazure atoms. The same technique can be applied to Hall–Littlewood polynomials and dual Grothendieck polynomials. The motivation behind this is that such recurrences...

We show here how to construct bases of the Z-module Int(P,Z) of polynomials that are integer-valued on the prime numbers together with their finite divided difference, that is, Int(P,Z) = { f ∈ Q[x] | ∀p, q ∈ P f(p) ∈ Z and f(p)− f(q) p− q ∈ Z } .

Excess heat was observed in the Pd|D2O electrolytic system using a Calvet type microcalorimeter. It was found that the average excess power was 0.025 W over 79 hours period. This result corresponds to a volume excess power of 8.75 W /cm Pd or a surface excess power of 0.044 W /cm Pd, and a specific excess heat of 2.48 MJ/cm Pd or 228 eV/atom Pd. The current density and D/Pd ratio for excess pow...

The main objective of this study was to establish an algorithm capable to recognize the shape and position of basic functional geometries obtained by mechanical manufacturing. Differential geometry was used to determine Gaussian and mean local curvatures of surfaces described by ordered cloud point representation. The partial derivatives were taken the entire sets of data points and the Gaussia...

According to a celebrated result by Löwner, a real-valued function f is operator monotone if and only if its Löwner matrix, which is the matrix of divided differences Lf = ( f(xi)−f(xj) xi−xj )N i,j=1 , is positive semidefinite for every integer N > 0 and any choice of x1, x2, . . . , xN . In this paper we answer a question of R. Bhatia, who asked for a characterisation of real-valued functions...

In this paper, we will present a new method for evaluating high order divided differences for certain classes of analytic, possibly, operator values functions. This is a classical problem in numerical mathematics but also arises in new applications such as, e.g., the use of generalized convolution quadrature to solve retarded potential integral equations. The functions which we will consider ar...