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The Cohomology of Commutative Semigroups
This book provides an organized exposition of the current state of the theory of commutative semigroup cohomology, a theory which was originated by the author and has matured in the past few years. The work contains a fundamental scientific study of questions in the theory. The various approaches to commutative semigroup cohomology are compared. The problems arising from definitions in higher dimensions are addressed. Computational methods are reviewed. The main application is the computation of extensions of commutative semigroups and their classification. Previously the components of the theory were scattered among a number of research articles. This work combines all parts conveniently in one volume. It will be a valuable resource for future students of and researchers in commutative semigroup cohomology and related areas.
The Biography of Muhammad
This book considers the Arabic biographies of Prophet Muhammad, the earliest of which dates from two centuries after his life. These biographies, prized by Muslims, have been approached in the Western study of Islam from a range of positions. Some scholars reject them entirely, seeing in them products of the Muslim community’s idealisation of its history, while others accept them at face value, reasoning that, if not exact versions of events, the events could not have differed too much from their descriptions. The author revisits the debate and reconsiders several key incidents in the life of the Prophet. By compiling an extensive corpus of materials and comparing them closely, this book a...
Commutative Semigroups
This is the first book about commutative semigroups in general. Emphasis is on structure but the other parts of the theory are at least surveyed and a full set of about 850 references is included. The book is intended for mathematicians who do research on semigroups or who encounter commutative semigroups in their research.
Encyclopedia of the Canonical Ḥadīth
An encyclopedic work on Islam with English translations. This book presents a sourcebook of the development of Islam in its various facets during the first three centuries since its foundation. It concludes with an index and glossary of names and concepts, which functions at the same time as a concordance.
The different aspects of islamic culture
This publication examines art, the human sciences, science, philosophy, mysticism, language and literature. For this task, UNESCO has chosen scholars and experts from all over the world who belong to widely divergent cultural and religious backgrounds.--Publisher's description.
