All the Groups of Signal Analysis from the (1+1)-affine Galilei Group

We study the relationship between the (1+1)-affine Galilei group and four groups of interest in signal analysis and image processing, viz., the wavelet or the affine group of the line, the Weyl-Heisenberg, the shearlet and the Stockwell groups. We show how all these groups can be obtained either directly as subgroups, or as subgroups of central extensions of the affine Galilei group. We also study this at the level of unitary representations of the groups on Hilbert spaces.Comment: 28 pages, 1 figur

Cultural universality versus particularity within e-CRM systems: a special case of information systems

Cultural factors are often identified as a crucial influence on the success or failure of Information Systems in general and Electronic Customer Relationship Management Systems (eCRM) in particular. Several researchers have suggested ways in which management can accommodate these factors or solve the problem they pose. This paper attempts to go one step beyond management measures and ask whether there is a theoretical foundation on which one can base the mutual influence of culture on eCRM. There is a lack of pervious literature on the impact of culture differences on eCRM systems. A normative literature review on the impact of culture on different types of Information Systems has been done to explore different cultural factors that might influence eCRM systems as an application of Information Systems. The authors highlight the cultures factors in macro and micro level that have been investigated in the literature of Information systems. At the macro level, it is necessary to consider the differences at a national level. The differentiating characteristics will include: organizational structures, function and process oriented views, supervisory control mechanisms etc. Micro level considerations will be at the individual level and will include human responses to organizational change, cultural acceptability of different organizational structures etc. The authors propose a framework of cultural concerns for management of eCRM systems within multinational environment organizations. This framework will be tested in future research and will be modified according to the results

A cultural approach to study customer relationship management (CRM) systems

As this paper takes new approach to defining and studying CRM, it defines CRM as a business strategy that seamlessly integrates every aspect of business that touches customer. Going through CRM literature, the authors notice that, there are different objectives for CRM systems i.e. retains customers for long, increase sales to existing customers and candidate customers, and others. Over the last decade there has been a dramatic growth in the acquisition of Customer Relationship Management (CRM) Systems. However more recently, there has been an increase in reported CRM failures, suggesting that the implementation issues are not just technical, but encompass wider behavior and cultural factors. Multinational organization is faced by that problem, how they build a relationship with different customer in different culture contexts. The literature on culture provides a set of general concepts and ideas as a way of looking at the world. However, the typologies of culture have inherent weaknesses e.g. they do not reflect the variety of values and attitude that may exist in a country, nor do they explain how cultures have developed over time. These limitations will need to be borne in mind, as we consider potential culture impact on the use of information systems, particularly customer relationship management systems. The authors try to highlight the interaction between cultures in macro and micro level in the context of CRM systems. The authors conclude that social and cultural issues of the main area related to studying of CR