The appearance of weakly wandering (ww) sets and sequences for ergodic transformations over half a century ago was an unexpected and surprising event. In time it was shown that ww and related sequences reflected significant and deep properties of ergodic transformations that preserve an infinite measure. This monograph studies in a systematic way the role of ww and related sequences in the classification of ergodic transformations preserving an infinite measure. Connections of these sequences to additive number theory and tilings of the integers are also discussed. The material presented is self-contained and accessible to graduate students. A basic knowledge of measure theory is adequate for the reader.
Social Justice is a concept familiar to most Indians but one whose meaning is not always understood as it signifies a variety of government strategies designed to enhance opportunities for underprivileged groups. By tracing the trajectory of social justice from the colonial period to the present, this book examines how it informs ideas, practices and debates on discrimination and disadvantage today. After outlining the historical context for reservations for scheduled castes and scheduled tribes that began under British colonial rule, the book examines the legal and moral strands of demands raised by newer groups since 1990. In addition the book shows how the development of quota policies has been significantly influenced by the nature and operation of democracy in India. It describes the recent proliferation of quota demands for reservations in higher education, private sector and for women and religious minorities in legislative assemblies. The book goes on to argue that while proliferation of demands address unequal incidence of poverty, deprivation and inequalities across social groups and communities, care has to be taken to ensure that existing justifications for quotas for discriminated groups due to caste hierarchies are not undermined. Providing a rich historical background to the subject, the book is a useful contribution to the study on the evolution of multiple conceptions of social justice in contemporary India.
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