Managing the information Technology help desk: An international dimension

Information Technology continues to change at a fast and furious rate that shows no signs of slowing. Support requirements are increasing, while businesses are becoming global and demanding more support for technology. This paper focuses on the issues and challenges faced by organizations in setting and running a help desk for end users in an international environment

Fractional boundary Hardy inequality for the critical cases

We establish fractional boundary Hardy-type inequality for the critical cases by introducing a logarithmically singular weight term for various domains in $\mathbb{R}^{d}$, $d \geq 1$. We show that this particular weight function is optimal, as the inequality becomes false when using weight functions more singular than this one. Additionally, we extend our results to include a weighted fractional boundary Hardy-type inequality for the critical case, employing the same type of weight function.Comment: 29 page

Properties of Multihomogeneous Spaces and relation with T-varieties

We study multihomogeneous spaces corresponding to ${\mathbb Z}^n$-graded algebras over an algebraically closed field of characteristic 0 and their relation with the description of $T$-varieties.Comment: 10 page