Building blocks for topology change

Building blocks for topology change in 3 D

We investigate topology change in 3D. Using Morse theory and handle decomposition we find the set of elementary cobordisms for 3-manifolds. These are: (i) Ø ↔ S 2 ; (ii) Σ g ↔ Σ g+1 ; (iii) Σ g 1 ⊔ Σ g 2 ↔ Σ g 1 +g 2 , and they have appealing physical interpretations, e.g. Big Bang/Big Crunch, wormhole creation/annihilation and Einstein-Rosen bridge cre-ation/annihilation, respectively. This de...

Building Blocks for Nanotransporters

Evaluation of Updating Methods in Building Blocks Dataset

With the increasing use of spatial data in daily life, the production of this data from diverse information sources with different precision and scales has grown widely. Generating new data requires a great deal of time and money. Therefore, one solution is to reduce costs is to update the old data at different scales using new data (produced on a similar scale). One approach to updating data i...

Building Blocks for Agent Design

We present our Component-Based Agent Framework, which enables a software engineer to design a set of agents by using a visual compo nent-based toolkit (Sun’s BDK), and wiring together desired blocks of functionality. We instantiate this framework in the RoboCup domain by implementing the necessary components. The implementation also serves as a proof of the viability of our framework. Finally, ...

Building Blocks for IP Telephony

The global telephony infrastructure is rapidly evolving from circuit-switching to IP-based packet-switching. Voice over IP (VoIP) is becoming common and is the intended base technology for corporate giants such as AT&T and Qwest. The marketing research firm, IDC, states “IP telephony is poised to become the fastest-growing, network services market of the decade” [1]. Reference [2] reviews the m...