A simple argument concerning bremsstrahlung shows how the presence of many %ofV particles increases the radius of a system. This suggests there is a natural basis for a growth of a particle’s effective radius at high energy in terms of the angular momentum fluctuations of a system containing increasingly larger numbers of particles. A formula which results for the radius in terms of the multipl...

RADIUS specified by RFC2865 and RFC2866 is used widely for remote dial-in user authentication and authorization. Packet filter such as Linux Netfilter is a primary toolkit to develop firewall or intrusion detection system. Modeling RADIUS client and packet filter together, a security gateway for grid computing is developed as an embedded or a proxy system. To reinforce the flexibility of the ga...

In this paper, we study the persistence of spatial analyticity for solutions to Klein-Gordon-Schrödinger system, which describes a physical system nucleon field interacting with neutral meson field, analytic initial data. Unlike case single nonlinear dispersive equation, not much is known about systems as it harder show coupled equations simultaneously. The only results so far are rather recent...

Using ergodic theory, in this paper we present a Gel’fand-type spectral radius formula which states that the joint spectral radius is equal to the generalized spectral radius for a matrix multiplicative semigroup S restricted to a subset that need not carry the algebraic structure of S. This generalizes the Berger-Wang formula. Using it as a tool, we study the absolute exponential stability of ...

we give further results for perron-frobenius theory on the numericalrange of real matrices and some other results generalized from nonnegative matricesto real matrices. we indicate two techniques for establishing the main theorem ofperron and frobenius on the numerical range. in the rst method, we use acorresponding version of wielandt's lemma. the second technique involves graphtheory.

Suppose we allow a system to fall freely from infinity to a point near (but not beyond) the horizon of a black hole. We note that in a sense the information in the system is already lost to an observer at infinity. Once the system is too close to the horizon it does not have enough energy to send its information back because the information carrying quanta would get redshifted to a point where ...