Systems of linear diierential equations with constant coeecients, as well as Lotka{Volterra equations, with delays in the oo{diagonal terms are considered. Such systems are shown to be asymptotically stable for any choice of delays if and only if the matrix has a negative weakly dominant diagonal.

Most learning systems applied to problem solving have the goal of learning knowledge for solving problems more eeciently. However, very few systems have focused on the acquisition of planning operator descriptions. In this paper, we present a system that learns operator deenitions from the interaction with a completely unknown environment. In order to achieve better learning convergence, severa...

Rodents are one of the major biological production constraints of paddy. Field experiments were carried out to evaluate the efficacy of seven different integrated rodent management modules against rodent pests in irrigated rice ecosystem during kharif and rabi seasons of 2011-12. The modules efficacy was assessed by live burrow count and diagonal methods simultaneously before and after impositi...

Nonlinear blind signal separation is an important but rather difficult problem. Any general nonlinear independent component analysis algorithm for such a problem should specify which solution it tries to find. Several recent neural networks for separating the post nonlinear blind mixtures are limited to the diagonal nonlinearity, where there is no cross-channel nonlinearity. In this paper, a ne...

The purpose of the present paper is to give a general method for determining the structure of the cohomology of stable two-stage space (for definitions see Section 1) as a module over the Steenrod algebra A. For convenience we only consider cohomology with coefficients in the integers in Z 2 , the integers mod 2. The general part of our paper, however, works equally well with arbitrary coeffici...

We compute the space of Poisson traces on symmetric powers of affine symplectic varieties. In the case of symplectic vector spaces, we also consider the quotient by the diagonal translation action, which includes the quotient singularities T C/Sn associated to the type A Weyl group Sn and its reflection representation C . We also compute the full structure of the natural D-module, previously de...