Oxygen deficiency can occur even in well-aerated substrates as the result of various factors. In crops grown in perlite bags, where perlite is wrapped in a polyethylene film with little surface open… (More)

In this paper, the interest is focused on monitoring profiles with Weibull distributed-response and common shape parameter in phase II processes. The monitoring of such profiles is completely… (More)

We construct dynamical systems with Pn as state space, using (n+1)×(n+1) matrices of linear forms in n+1 variables, such that the fixed point sets are rational normal curves minus one point. Our… (More)

Let G be a connected linear semisimple Lie group having a Holomorphic Discrete Series representation π. Let H be a connected reductive subgroupof G so that the global symmetric space attached to H is… (More)

There are practical situations in which the quality of a process or product can be better characterized by a functional relationship between a response variable and one or more explanatory variables,… (More)

The Gulf of Nicoya is a tectonic estuary on the Pacific coast of Costa Rica (10°N–85°W), extending about 100 km from the Tempisque river to the 500 m isobath. A dry season (December–April) and a… (More)