Chitinase 1 (Chi1) is the major extracellular chitinase from the hyperparasitic fungus, Aphanocladium album. We determined the complete sequence of the chromosomal and cDNA copies of the structuralâ€¦ (More)

Fifty-two strains from eight species of Fusarium were analyzed by rapid rRNA sequencing. Two highly variable stretches (138 and 214 nucleotides) of the 5' end of the 28S-like rRNA molecule wereâ€¦ (More)

This paper defines several Riccati equations that allow checking the stability of difference equations with delay effect as x<sub>i+1</sub> = <sup>m</sup>Î£<sub>j=0</sub> A<sub>j</sub> x<sub>i-j</sub>â€¦ (More)

It is well known that (A-B) invariance and (A+BF) invariance properties are not equivalent when we are working on systems over a ring. This fact implies to impose restrictive conditions on a systemâ€¦ (More)

Observability concepts and observers are discussed for linear neutral delay-differential systems, according to an algebraic approach (ring theory). For delay systems of retarded type, various schemesâ€¦ (More)

The objective of this paper is to solve the coefficient assignment problem for linear multivariable systems with delays. The aim is to extend the results of [16] on coefficient assignment problem forâ€¦ (More)