During last decade, the decline of elm trees was observed in Fars province (Iran) due to a wood decaying agent in heartwood of the trees. Unknown basidiomycete isolates were frequently isolated from such trees. The objective of the present study was to identify the basidiomycete isolates by molecular phylogenetic analysis of the internal transcribed spacers of ribosomal DNA. For this purpose, i...

the theory of c-frames and c-bessel mappings are the generalizationsof the theory of frames and bessel sequences. in this paper, weobtain several equivalent conditions for dual of c-bessel mappings.we show that for a c-bessel mapping $f$, a retrievalformula with respect to a c-bessel mapping $g$ is satisfied if andonly if $g$ is sum of the canonical dual of $f$ with a c-besselmapping which  wea...

In this paper,  we determine necessary and sufficient Tauberian conditions under which convergence in Pringsheim's sense of a double sequence of fuzzy numbers follows from its $(C,1,1)$ summability. These conditions are satisfied if the double sequence of fuzzy numbers is slowly oscillating in different senses. We also construct some interesting double sequences of fuzzy numbers.

in which each {Fi(n)} is a sequence that satisfies a linear recurrence of degree D(i) < ∞, with constant coefficients. We assume further that the ai’s and the ai + bi’s are all nonnegative integers. We prove that such a sum always has a closed form, in the sense that it evaluates to a linear combination of a finite set of monomials in the values of the sequences {Fi(n)} with coefficients that a...

We isolated and sequenced a human genomic-DNA segment that is homologous to a portion of v-rel, the transforming gene of reticuloendotheliosis virus (strain T). We also localized the human rel sequences to human chromosome 2 by screening a panel of rodent X human somatic-cell hybrids with the newly described human rel segment.