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Article
Publication date: 29 December 2021

M'Hamed El-Louh, Mohammed El Allali and Fatima Ezzaki

In this work, the authors are interested in the notion of vector valued and set valued Pettis integrable pramarts. The notion of pramart is more general than that of martingale…

Abstract

Purpose

In this work, the authors are interested in the notion of vector valued and set valued Pettis integrable pramarts. The notion of pramart is more general than that of martingale. Every martingale is a pramart, but the converse is not generally true.

Design/methodology/approach

In this work, the authors present several properties and convergence theorems for Pettis integrable pramarts with convex weakly compact values in a separable Banach space.

Findings

The existence of the conditional expectation of Pettis integrable mutifunctions indexed by bounded stopping times is provided. The authors prove the almost sure convergence in Mosco and linear topologies of Pettis integrable pramarts with values in (cwk(E)) the family of convex weakly compact subsets of a separable Banach space.

Originality/value

The purpose of the present paper is to present new properties and various new convergence results for convex weakly compact valued Pettis integrable pramarts in Banach space.

Details

Arab Journal of Mathematical Sciences, vol. 29 no. 2
Type: Research Article
ISSN: 1319-5166

Keywords

Article
Publication date: 20 March 2007

Vincent Mosco

The paper aims to expand the public service principle to cover labour and worker organizations in the communication industry. It also aims to demonstrate the value of labour

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Abstract

Purpose

The paper aims to expand the public service principle to cover labour and worker organizations in the communication industry. It also aims to demonstrate the value of labour convergence as an instrument to advance the interests of knowledge workers and the public interest in communication.

Design/methodology/approach

The paper draws from conceptual debates around the nature of knowledge labour and of convergence. It draws from interviews and documentary evidence to determine the value of trade union convergence and new forms of worker organization in the communication industries.

Findings

The paper finds that communication workers are engaging in their own form of convergence and are using it to advance the public service principle in knowledge labour. In doing so, they are expanding the public interest in communication.

Originality/value

The paper is one of the only studies that connects the public service principle and convergence to knowledge and communication workers. It demonstrates that, despite significant challenges, these workers are a significant force in the communication arena.

Details

info, vol. 9 no. 2/3
Type: Research Article
ISSN: 1463-6697

Keywords

Article
Publication date: 1 February 2000

Yuezhi Zhao

Analyses the evolution of China’s telephone and cable systems, in terms of the public interest, discussing current bureaucratic conflicts and policy debates over convergence, and…

Abstract

Analyses the evolution of China’s telephone and cable systems, in terms of the public interest, discussing current bureaucratic conflicts and policy debates over convergence, and construction of an independent broadband cable network. Looks in depth at China’s problems and the different problems for its citizens with regard to poverty levels and access to the Web.

Details

info, vol. 2 no. 1
Type: Research Article
ISSN: 1463-6697

Keywords

Abstract

Details

Journalism and Austerity
Type: Book
ISBN: 978-1-83909-417-0

Abstract

Details

Becoming Digital
Type: Book
ISBN: 978-1-78743-295-6

Article
Publication date: 1 February 2000

Christopher T. Marsden

How do European policymakers and media companies react to the AOL‐TimeWarner merger? In this short provocation, Marsden asks whether the successful coupling of the world’s largest…

Abstract

How do European policymakers and media companies react to the AOL‐TimeWarner merger? In this short provocation, Marsden asks whether the successful coupling of the world’s largest ISP and media content creator signal le defi americain in communications, for Europe and the rest of the world? In particular, he questions whether market actors should be permitted a similar role in Europe. In competition policy terms, the question is whether creation of economies of scale and scope, particularly through vertical integration between carriers and content providers, now causes increasing redundancy of media‐specific ownership laws at a national level in favour of European industrial policy? The outflanking policy trend is demonstrated specifically in the merger of Vodafone‐Mannesmann, and the content alliances formed with Vivendi, and between Vodafone, Vivendi and variously BSkyB and Manchester United. Even if symbolic debate continues to give primacy to democratic principle, European public policy may switch poles, from denying concentration of media on democratic principle of pluralism of ownership, to encouraging European champions to compete with the Americans. This convergence debate will centrally occupy policymakers, with new national legislation and Commission Directives in all probability preceded by critical merger decisions by the Competition Directorate.

Details

info, vol. 2 no. 1
Type: Research Article
ISSN: 1463-6697

Keywords

Book part
Publication date: 16 October 2017

Vincent Mosco

Abstract

Details

Becoming Digital
Type: Book
ISBN: 978-1-78743-295-6

Abstract

Details

Digital Detox: The Politics of Disconnecting
Type: Book
ISBN: 978-1-78769-342-5

Abstract

Details

The Smart City in a Digital World
Type: Book
ISBN: 978-1-78769-138-4

Content available
Book part
Publication date: 31 August 2018

Elisa Serafinelli

Abstract

Details

Digital Life on Instagram
Type: Book
ISBN: 978-1-78756-495-4

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