A Malliavin-Skorohod calculus in L0L^0 and L1L^1 for additive and Volterra-type processes

In this paper we develop a Malliavin-Skorohod type calculus for additive processes in the $L^0$ and $L^1$ settings, extending the probabilistic interpretation of the Malliavin-Skorohod operators to this context. We prove calculus rules and obtain a generalization of the Clark-Hausmann-Ocone formula for random variables in $L^1$. Our theory is then applied to extend the stochastic integration with respect to volatility modulated L\'evy-driven Volterra processes recently introduced in the literature. Our work yields to substantially weaker conditions that permit to cover integration with respect, e.g. to Volterra processes driven by $\alpha$-stable processes with $\alpha < 2$. The presentation focuses on jump type processes.Comment: 27 page

Acciones para el impulso de la formación digital a través de las bibliotecas en Cataluña

Presentation of the activities carried out by the General Sub-Directorate of Libraries of the Government of Catalonia (Generalitat de Catalunya) to enhance digital training library staff and users

Confidencialidad y derechos de autor en un proyecto de intranet

This study addresses two questions in the legal realm that affect the planning, development, and use of intranets. Protection of the author's rights and protection of the user's personal information are two basic considerations that must be taken into account by those responsible for an organization's intranet. Although intellectual property rights and confidentiality are totally different in nature, both are discussed in this article from the perspective of how they should be managed by information professionals. In recent years we have seen how technology can contribute to violation of copyright law and personal confidentiality. This conflict can occur in our intranets if proper measures are not taken to reconcile the interests of all users, of those whose personal information must be protected, and of copyright holders