This package enables Mathematica to carry out calculations with differential forms. It defines the two basic operations - Exterior Product (Wedge) and Exterior Derivative (d) ...

Using the diagrammatic technique for Hubbard operators we construct a linked-cluster perturbation expansion around the atomic limit of the Hubbard model. We first perform a ...

Tomography - the reconstruction of a two-dimensional image from a series of its one-dimensional projections - is now a very broad topic with a wealth of algorithms for the ...

For zero energy, $E=0$, we derive exact, classical solutions for {\em all} power-law potentials, $V(r)=-\gamme/r^\nu$, with $\gamme>0$ and $-\infty2$, the orbits are bound ...

It would seem that limiting computer computations to numbers with a fixed number of decimal digits would inhibit flexibility. Software programs such as Mathematica permit ...

Symmetry plays an important role in human reasoning about physical systems. Symmetry has been used as a constraint when deriving models for specific systems (as in ...

Computing the values of the capacitances for an equivalent circuit model of a PCB is a very CPU-intensive task. The time taken for this is dominated by the time taken to ...

The daily closing values of the S&P 500 Index from January 1, 1926 through June 11, 1993, a total of 17,610 values were entered into Mathematica, and the day-to-day percent ...

This paper is devoted to Bayesian analysis for semi-parametric proportional hazard models (also called Cox models). Independent observations are made, whose distributions are ...

It is well-known that the Timoshenko quotient always gives better results than the corresponding Rayleigh quotient, but its implementation is not straightforward, at least ...