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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 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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