JSC
2006
13 years 4 months ago
2006
We show the following two universality statements on the entry-ranges and Markov bases of spaces of 3-way contingency tables with fixed 2-margins: (1) For any finite set D of nonn...
JSC
2006
13 years 4 months ago
2006
We describe our online database of finite extensions of Qp, and how it can be used to facilitate local analysis of number fields.
JSC
2006
13 years 4 months ago
2006
A Viterbi path of length n of a discrete Markov chain is a sequence of n + 1 states that has the greatest probability of ocurring in the Markov chain. We divide the space of all M...
JSC
2006
13 years 4 months ago
2006
JSC
2006
13 years 4 months ago
2006
We provide a polyhedral description of the conditions for the existence of the maximum likelihood estimate (MLE) for a hierarchical log-linear model. The MLE exists if and only if...
JSC
2006
13 years 4 months ago
2006
To calibrate Fourier analysis of S5 ranking data by Markov chain Monte Carlo techniques, a set of moves (Markov basis) is needed. We calculate this basis, and use it to provide a ...
JSC
2006
13 years 4 months ago
2006
We present two algorithms that can be used to check whether a given holomorphic foliation of the projective plane has an algebraic solution, and discuss the performance of their im...
JSC
2006
13 years 4 months ago
2006
We propose an algorithm for computing an exact absolute factorization of a bivariate polynomial from an approximate one. This algorithm is based on some properties of the algebrai...
JSC
2006
13 years 4 months ago
2006
In statistics, mixture models consisting of several component subpopulations are used widely to model data drawn from heterogeneous sources. In this paper, we consider maximum lik...
JSC
2006
13 years 4 months ago
2006
We describe explicit methods of exhibiting elements of the Brauer groups of diagonal quartic surfaces. Using these methods, we compute the algebraic Brauer