iStar2.0 was delivered in 2016 with the intention of becoming a standard de facto for the i* community. It includes a lightweight definition of the language adorned with a metamodel (in the form of a UML class diagram) ...

For a class of non-hyperelliptic genus 3 curves C which are 2-fold coverings of elliptic curves E, we give an explicit algebraic description of all birationally non-equivalent genus 2 curves whose Jacobians are degree 2 ...

Es realitza un estudi de les extensions algebraiques de subgrups lliures, fent ús extensiu dels grafs de Stallings, en àmbits com la sobrejectivitat de morfismes entre grafs de Stallings, o el comportament d'aquestes com ...

Phylogenetics is a scientific field that focuses on understanding the evolutionary relationships between living organisms. Specifically, it seeks to reconstruct the evolutionary history of these organisms and the ...

In this thesis, we introduce the K groups of a scheme. One of the motivations for the definition of the K groups is to prove a generalized version of the Riemann-Roch Theorem. We introduce the K groups of a scheme and ...

To those outside the field, and even to some focused on empirical applications, phylogenetics may appear to have little to do with algebra. Probability and statistics are clearly important ingredients, as modeling and ...

We present an elaborate preconditioning scheme for Krylov subspace methods which has been developed to improve the performance and reduce the execution time of parallel node-based finite-element solvers for three-dimensional ...

In this paper, an algebraic-observer-based output-feedback controller is proposed for a Proton Exchange Membrane Fuel Cell (PEMFC) air-supply subsystem, based on both algebraic differentiation and sliding-mode control ...

Phylogenetic reconstruction methods attempt to infer the evolutionary relationships among a group of species. Apart from classical reconstruction methods, new methods have been developed based on algebraic relationships ...