In this note I shall continue the study of the geometry of the moduli-space of pairs of points in 3 dimensions. I show that this space, H̃, is the base space of a canonical family of associative k -algebras in dimension 4. The study of the corresponding family of derivations leads to a natural way of introducing an action of the gauge Lie algebras of the Standard Model, in H̃. The results fit wel...

We search the COSMOS survey for pairs of galaxies consistent with the gravitational lensing signature of a cosmic string. The COSMOS survey imaged 1.64 square degrees using the Advanced Camera for Surveys (ACS) aboard the Hubble Space Telescope (HST). Our technique includes estimates of the efficiency for finding the lensed galaxy pair. We find no evidence for cosmic strings with a mass per uni...

COSMOS, Computer Science for Complex System Modeling, is a research team that has the mission of bridging the gap between formal methods and real problems. The goal is twofold: (1) a better management of the growing complexity of current systems; (2) a high quality of the implementation reducing the time to market. The COSMOS vision is to prove this approach in non-trivial industrial problems l...

Communities offer a context for people to meet, communicate and collaborate. Tools to support communities usually provide a communication and coordination medium and functionalities to find communication partners. Thereby, they strengthen existing communities or enable completely new (virtual) communities. In this paper we briefly present some ideas towards the extension of community support to...

In this paper, we discuss the implementation of a simple pedestrian simulation that uses a multi agent based design pattern developed by the CoSMoS research group. Given the nature of Multi Agent Systems (MAS), parallel processing techniques are inevitably used in their implementation. Most of these approaches rely on conventional parallel programming techniques, such as threads, Message Passin...

In his quest to comprehend his existence, Man has long been exploring his outer world (macro-cosmos), as well as his inner world (micro-cosmos). In modern times, monmental advances in the fields of physics, chemistry, and other natural sciences have reflected on how we understand the anatomy and physiology of the human body and circulation. Yet, humanity took a long and winding road to reach wh...

The article describes the TSAR tool for system availability and availability analysis. Failure and repair model is based on Markov chain defined by states and transitions. Each state can be interpreted as working or broken. Transitions are defined by transition probabilities and transition time probability density functions. Availability and reliability analysis is based on discrete event Monte...

Today, the Internet gains more and more attraction even for small companies to contact business partners and to automate cooperation between each other. However, the smaller the company the higher the relative setup costs that are required if the complete process of a commercial transaction is to be supported. We propose COSMOS as an Internet-based electronic contracting service that facilitate...

Context. Recently, new strong lens candidates have been discovered within the COSMOS field. Here we present VLT/FORS1 spectroscopic follow-up observations and HST/WFPC2 imaging of the system COSMOS 5921+0638, which shows quadruply lensed images and a perfect Einstein ring. Aims. With the available observations of COSMOS 5921+0638 we study the nature of the system as well as its photometric, spe...

We outline a strategy to select faint (iAB < 24:5) type 1 active galactic nucleus (AGN) candidates down to the Seyfert/QSO boundary for spectroscopic targeting in the COSMOS field. Our selection process picks candidates by their nonstellar colors in uBVRizK broadband photometry from the Subaru and CFH Telescopes and morphological properties extracted from Hubble Space Telescope (HST ) ACS i-ban...