Locating a public good on a sphere

Locating a Circle on a Sphere

We consider the problem of locating a spherical circle with respect to existing facilities on a sphere, such that the sum of distances between the circle and the facilities is minimized, or such that the maximum distance is minimized. The problem properties are analyzed, and we give solution procedures. When the circle to be located is restricted to be a great circle, some simplifications are p...

Social Campaigns on Online Platforms as a New Form of Public Sphere in Digital Era: A Critical Review

Nowadays with the ever-increasing growth in social media platforms and the creation of different forms of online activism, the word known as “Campaign” has become a familiar and useful term in people’s everyday lives. Campaigns with all kinds of social aims especially using Hashtags are run on social media platforms by individuals, charities, NGOs, governments, municipalities and brand companie...

Designing a conceptual model of public libraries as community centers, based on the public sphere theory of Jürgen Habermas

Objective: The aim of this study is to achieve a conceptual model for the transformation of Iranian public libraries into social centers, based on the theory of the public sphere of Jürgen Habermas. Methodology: Research in terms of purpose, applied; In terms of how data is collected, survey; And in terms of the nature of the data, it is a mixed exploratory type of research conducted with a s...

Gazeau- Klouder Coherent states on a sphere

In this paper, we construct the Gazeau-Klauder coherent states of a two- dimensional harmonic oscillator on a sphere based on two equivalent approaches. First, we consider the oscillator on the sphere as a deformed (non-degenerate) one-dimensional oscillator. Second, the oscillator on the sphere is considered as the usual (degenerate) two--dimensional oscillator. Then, by investigating the quan...

Public sphere and intellectual discourses in Iran