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E-BookPDF1 - PDF WatermarkE-Book
312 Seiten
Englisch
Springer Nature Singaporeerschienen am26.06.20182nd ed. 2018
This book discusses the importance of flag varieties in geometric objects and elucidates its richness as interplay of geometry, combinatorics and representation theory. The book presents a discussion on the representation theory of complex semisimple Lie algebras, as well as the representation theory of semisimple algebraic groups. In addition, the book also discusses the representation theory of symmetric groups. In the area of algebraic geometry, the book gives a detailed account of the Grassmannian varieties, flag varieties, and their Schubert subvarieties. Many of the geometric results admit elegant combinatorial description because of the root system connections, a typical example being the description of the singular locus of a Schubert variety. This discussion is carried out as a consequence of standard monomial theory. Consequently, this book includes standard monomial theory and some important applications-singular loci of Schubert varieties, toric degenerations of Schubert varieties, and the relationship between Schubert varieties and classical invariant theory. The two recent results on Schubert varieties in the Grassmannian have also been included in this book. The first result gives a free resolution of certain Schubert singularities. The second result is about certain Levi subgroup actions on Schubert varieties in the Grassmannian and derives some interesting geometric and representation-theoretic consequences.





V. LAKSHMIBAI is professor at Northeastern University, Boston, U.S.A. and a fellow of the American Mathematical Society since January 2013. She earned her PhD from the Tata Institute of Fundamental Research, Mumbai, India. She, together with C.S. Seshadri and C. Musili, founded the standard monomial theory for generalized flag varieties (as well as their Schubert subvarieties), as a generalization of the classical Hodge-Young theory (for the Grassmannians as well as their Schubert subvarieties). Her areas of research are algebraic geometry, representation theory, and combinatorics, particularly in flag varieties, Grassmannian varieties as well as their Schubert subvarieties. She has authored five books including Singular Loci of Schubert Varieties with co-author Sara Billey (Birkhauser), Standard Monomial Theory with co-author K.N. Raghavan (Springer) and The Grassmannian Variety with co-author Justin Brown (Springer).

JUSTIN BROWN is associate professor of mathematics at Olivet Nazarene University in Bourbonnais, Illinois, U.S.A. He earned his PhD on the topic 'Some geometric properties of certain toric varieties and Schubert varieties' at Northeastern University, under the guidance of Prof. V. Lakshmibai. His areas of research include algebra, algebraic geometry, topology, and combinatorics. He has co-authored two books with Prof. V. Lakshmibai including The Grassmannian Variety (Springer).
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Produkt

KlappentextThis book discusses the importance of flag varieties in geometric objects and elucidates its richness as interplay of geometry, combinatorics and representation theory. The book presents a discussion on the representation theory of complex semisimple Lie algebras, as well as the representation theory of semisimple algebraic groups. In addition, the book also discusses the representation theory of symmetric groups. In the area of algebraic geometry, the book gives a detailed account of the Grassmannian varieties, flag varieties, and their Schubert subvarieties. Many of the geometric results admit elegant combinatorial description because of the root system connections, a typical example being the description of the singular locus of a Schubert variety. This discussion is carried out as a consequence of standard monomial theory. Consequently, this book includes standard monomial theory and some important applications-singular loci of Schubert varieties, toric degenerations of Schubert varieties, and the relationship between Schubert varieties and classical invariant theory. The two recent results on Schubert varieties in the Grassmannian have also been included in this book. The first result gives a free resolution of certain Schubert singularities. The second result is about certain Levi subgroup actions on Schubert varieties in the Grassmannian and derives some interesting geometric and representation-theoretic consequences.





V. LAKSHMIBAI is professor at Northeastern University, Boston, U.S.A. and a fellow of the American Mathematical Society since January 2013. She earned her PhD from the Tata Institute of Fundamental Research, Mumbai, India. She, together with C.S. Seshadri and C. Musili, founded the standard monomial theory for generalized flag varieties (as well as their Schubert subvarieties), as a generalization of the classical Hodge-Young theory (for the Grassmannians as well as their Schubert subvarieties). Her areas of research are algebraic geometry, representation theory, and combinatorics, particularly in flag varieties, Grassmannian varieties as well as their Schubert subvarieties. She has authored five books including Singular Loci of Schubert Varieties with co-author Sara Billey (Birkhauser), Standard Monomial Theory with co-author K.N. Raghavan (Springer) and The Grassmannian Variety with co-author Justin Brown (Springer).

JUSTIN BROWN is associate professor of mathematics at Olivet Nazarene University in Bourbonnais, Illinois, U.S.A. He earned his PhD on the topic 'Some geometric properties of certain toric varieties and Schubert varieties' at Northeastern University, under the guidance of Prof. V. Lakshmibai. His areas of research include algebra, algebraic geometry, topology, and combinatorics. He has co-authored two books with Prof. V. Lakshmibai including The Grassmannian Variety (Springer).
Details
Weitere ISBN/GTIN9789811313936
ProduktartE-Book
EinbandartE-Book
FormatPDF
Format Hinweis1 - PDF Watermark
FormatE107
Erscheinungsjahr2018
Erscheinungsdatum26.06.2018
Auflage2nd ed. 2018
Reihen-Nr.53
Seiten312 Seiten
SpracheEnglisch
IllustrationenXIV, 312 p. 32 illus.
Artikel-Nr.3459062
Rubriken
Genre9200

Inhalt/Kritik

Inhaltsverzeichnis
¿Chapter 1. Preliminaries.- Chapter 2. Structure Theory of Semisimple Rings.- Chapter 3. Representation Theory of Finite Groups.- Chapter 4. Representation Theory of the Symmetric Group.- Chapter 5. Symmetric Polynomials.- Chapter 6. Schur-Weyl Duality and the Relationship Between Representations of Sd and GLn (C).- Chapter 7. Structure Theory of Complex Semisimple Lie Algebras.- Chapter 8. Representation Theory of Complex Semisimple Lie Algebras.- Chapter 9. Generalities on Algebraic Groups.- Chapter 10. Structure Theory of Reductive Groups.- Chapter 11. Representation Theory of Semisimple Algebraic Groups.- Chapter 12. Geometry of the Grassmannian, Flag and their Schubert Varieties via Standard Monomial Theory.- Chapter 13. Singular Locus of a Schubert Variety in the Flag Variety SLn=B.- Chapter 14. Applications.-Chapter 15. Free Resolutions of Some Schubert Singularities.- Chapter 16. Levi Subgroup Actions on Schubert Varieties, and Some Geometric Consequences.mehr

Autor

V. LAKSHMIBAI is professor at Northeastern University, Boston, U.S.A. and a fellow of the American Mathematical Society since January 2013. She earned her PhD from the Tata Institute of Fundamental Research, Mumbai, India. She, together with C.S. Seshadri and C. Musili, founded the standard monomial theory for generalized flag varieties (as well as their Schubert subvarieties), as a generalization of the classical Hodge-Young theory (for the Grassmannians as well as their Schubert subvarieties). Her areas of research are algebraic geometry, representation theory, and combinatorics, particularly in flag varieties, Grassmannian varieties as well as their Schubert subvarieties. She has authored five books including Singular Loci of Schubert Varieties with co-author Sara Billey (Birkhauser), Standard Monomial Theory with co-author K.N. Raghavan (Springer) and The Grassmannian Variety with co-author Justin Brown (Springer).

JUSTIN BROWN is associate professor of mathematics at Olivet Nazarene University in Bourbonnais, Illinois, U.S.A. He earned his PhD on the topic "Some geometric properties of certain toric varieties and Schubert varieties" at Northeastern University, under the guidance of Prof. V. Lakshmibai. His areas of research include algebra, algebraic geometry, topology, and combinatorics. He has co-authored two books with Prof. V. Lakshmibai including The Grassmannian Variety (Springer).