Frontmatter -- Acknowledgments -- Foreword -- Contents -- 1 Geometric motivation -- 2 Graded algebras -- 3 Rational maps, I -- 4 Rational maps, II -- 5 The gradient ideal -- 6 Cremona transformations, I -- 7 Cremona transformations, II -- 8 Steps in elimination -- 9 The Gauss map -- 10 Tangent varieties -- 11 Embedded joins and secants -- 12 Aluffi algebras -- Bibliography -- Index

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The objective of this book is to look at certain commutative graded algebras that appear frequently in algebraic geometry. By studying classical constructions from geometry from the point of view of modern commutative algebra, this carefully-written book is a valuable source of information, offering a careful algebraic systematization and treatment of the problems at hand, and contributing to the study of the original geometric questions. In greater detail, the material covers aspects of rational maps (graph, degree, birationality, specialization, combinatorics), Cremona transformations, polar maps, Gauss maps, the geometry of Fitting ideals, tangent varieties, joins and secants, Aluffi algebras. The book includes sections of exercises to help put in practice the theoretic material instead of the mere complementary additions to the theory.

Issued also in print.

The accessibility of this resources in unknown or unassessed.

Mode of access: Internet via World Wide Web.

Aron Simis, Federal University of Pernambuco, Brazil; Zaqueu Alves Ramos, Cidade Universitária Prof. Aloísio Campo, Brazil.

In English.

Description based on online resource; title from PDF title page (publisher's Web site, viewed March 03 2026)