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Semi-algebraic Function Rings and Reflectors of Partially Ordered Rings (Paperback, 1999 ed.): Niels Schwartz, James J. Madden Semi-algebraic Function Rings and Reflectors of Partially Ordered Rings (Paperback, 1999 ed.)
Niels Schwartz, James J. Madden
R1,985 Discovery Miles 19 850 Ships in 10 - 15 working days

The book lays algebraic foundations for real geometry through a systematic investigation of partially ordered rings of semi-algebraic functions. Real spectra serve as primary geometric objects, the maps between them are determined by rings of functions associated with the spectra. The many different possible choices for these rings of functions are studied via reflections of partially ordered rings. Readers should feel comfortable using basic algebraic and categorical concepts. As motivational background some familiarity with real geometry will be helpful. The book aims at researchers and graduate students with an interest in real algebra and geometry, ordered algebraic structures, topology and rings of continuous functions.

Spectral Spaces (Hardcover): Max Dickmann, Niels Schwartz, Marcus Tressl Spectral Spaces (Hardcover)
Max Dickmann, Niels Schwartz, Marcus Tressl
R4,788 Discovery Miles 47 880 Ships in 12 - 19 working days

Spectral spaces are a class of topological spaces. They are a tool linking algebraic structures, in a very wide sense, with geometry. They were invented to give a functional representation of Boolean algebras and distributive lattices and subsequently gained great prominence as a consequence of Grothendieck's invention of schemes. There are more than 1,000 research articles about spectral spaces, but this is the first monograph. It provides an introduction to the subject and is a unified treatment of results scattered across the literature, filling in gaps and showing the connections between different results. The book includes new research going beyond the existing literature, answering questions that naturally arise from this comprehensive approach. The authors serve graduates by starting gently with the basics. For experts, they lead them to the frontiers of current research, making this book a valuable reference source.

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