Worldlines and social networks

Lorentzian Worldlines and Schwarzian Derivative

The aim of this note is to relate the classical Schwarzian derivative and the geometry of Lorentz surfaces of constant curvature. 1. The starting point of our investigations lies in the following remark (joint work with L. Guieu). Consider a curve y = f(x) in the Lorentz plane with metric g = dxdy. If f (x) > 0, then its Lorentz curvature can be computed : ̺(x) = f (x) (f (x)) and enjoys the qui...

The Virtual Social Networks and Couples’ Commitment

Technologies and various media have affected social institutions such as family and causeshape changes in relationships within the family. One of the means of communication that are easilyand widely used in the household is Internet. With the entrance of media, especially the Internet tothe family, changes in personal, social, public and private relationships are occurred. The use ofsocial netw...

Social networks and value system of students

Purpose: Technologies in general and media in particular influence their audience through their form and content. There are many studies about the role and effect of classic media on values change; however, few studies have explored new emergent media such as social networks. The aim of this descriptive-survey research is to investigate how time spent on social network and social network addict...

Closed 3-Forms and Random Worldlines

Worldlines and body points associated with an extensive property

Material structure of bodies that is usually assumed a-priory in continuum mechanics is constructed on the basis of a balance of a given extensive property on spacetime. Body points are identified with worldlines—the integral lines of the flux of the property. The geometric setting assumes that spacetime has only the structure of a differentiable manifold and no particular frame is assumed to b...