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2010

University of Nebraska - Lincoln

Department of Mathematics: Class Notes and Learning Materials

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Class Notes For Math 953: Algebraic Geometry, Instructor Roger Wiegand, Laura Lynch Jan 2010

Class Notes For Math 953: Algebraic Geometry, Instructor Roger Wiegand, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Affine schemes and sheaves, morphisms, dimension theory, projective varieties, graded rings, Artin rings


Class Notes For Math 901/902: Abstract Algebra, Instructor Tom Marley, Laura Lynch Jan 2010

Class Notes For Math 901/902: Abstract Algebra, Instructor Tom Marley, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Free groups and presentations; Automorphism groups; Semidirect products; Classification of groups of small order; Normal series: composition, derived, and solvable series; Algebraic field extensions, splitting fields, algebraic closures; Separable algebraic extensions, the Primitive Element Theorem; Inseparability, purely inseparable extensions; Finite fields; Cyclotomic field extensions; Galois theory; Norm and trace maps of an algebraic field extension; Solvability by radicals, Galois' theorem; Transcendence degree; Rings and modules: Examples and basic properties; Exact sequences, split short exact sequences; Free modules, projective modules; Localization of (commutative) rings and modules; The prime spectrum of a ring; Nakayama's lemma; Basic category theory; The Hom …


Class Notes For Math 918: Homological Conjectures, Instructor Tom Marley, Laura Lynch Jan 2010

Class Notes For Math 918: Homological Conjectures, Instructor Tom Marley, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

This course was an overview of what are known as the “Homological Conjectures,” in particular, the Zero Divisor Conjecture, the Rigidity Conjecture, the Intersection Conjectures, Bass’ Conjecture, the Superheight Conjecture, the Direct Summand Conjecture, the Monomial Conjecture, the Syzygy Conjecture, and the big and small Cohen Macaulay Conjectures. Many of these are shown to imply others.

This document contains notes for a course taught by Tom Marley during the 2009 spring semester at the University of Nebraska-Lincoln. The notes loosely follow the treatment given in Chapters 8 and 9 of Cohen-Macaulay Rings, by W. Bruns and J. Herzog, although many …


Class Notes For Math 915: Homological Algebra, Instructor Tom Marley, Laura Lynch Jan 2010

Class Notes For Math 915: Homological Algebra, Instructor Tom Marley, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics covered are: Complexes, homology, direct and inverse limits, Tor, Ext, and homological dimensions. Also, Koszul homology and cohomology.


Class Notes For Math 918: Cohen Macaulay Modules, Instructor Roger Wiegand, Laura Lynch Jan 2010

Class Notes For Math 918: Cohen Macaulay Modules, Instructor Roger Wiegand, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics covered are: Cohen Macaulay modules, zero-dimensional rings, one-dimensional rings, hypersurfaces of finite Cohen-Macaulay type, complete and henselian rings, Krull-Remak-Schmidt, Canonical modules and duality, AR sequences and quivers, two-dimensional rings, ascent and descent of finite Cohen Macaulay type, bounded Cohen Macaulay type.


Class Notes For Math 921/922: Real Analysis, Instructor Mikil Foss, Laura Lynch Jan 2010

Class Notes For Math 921/922: Real Analysis, Instructor Mikil Foss, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Semicontinuity, equicontinuity, absolute continuity, metric spaces, compact spaces, Ascoli’s theorem, Stone Weierstrass theorem, Borel and Lebesque measures, measurable functions, Lebesque integration, convergence theorems, Lp spaces, general measure and integration theory, Radon- Nikodyn theorem, Fubini theorem, Lebesque-Stieltjes integration, Semicontinuity, equicontinuity, absolute continuity, metric spaces, compact spaces, Ascoli’s theorem, Stone Weierstrass theorem, Borel and Lebesque measures, measurable functions, Lebesque integration, convergence theorems, Lp spaces, general measure and integration theory, Radon-Nikodyn theorem, Fubini theorem, Lebesque-Stieltjes integration.


Class Notes For Math 918: Local Cohomology, Instructor Tom Marley, Laura Lynch Jan 2010

Class Notes For Math 918: Local Cohomology, Instructor Tom Marley, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Injective Module, Basic Properties of Local Cohomology Modules, Local Cohomology as a Cech Complex, Long exact sequences on Local Cohomology, Arithmetic Rank, Change of Rings Principle, Local Cohomology as a direct limit of Ext modules, Local Duality, Chevelley’s Theorem, Hartshorne- Lichtenbaum Vanishing Theorem, Falting’s Theorem.


Class Notes For Math 871: General Topology, Instructor Jamie Radcliffe, Laura Lynch Jan 2010

Class Notes For Math 871: General Topology, Instructor Jamie Radcliffe, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Topological space and continuous functions (bases, the product topology, the box topology, the subspace topology, the quotient topology, the metric topology), connectedness (path connected, locally connected), compactness, completeness, countability, filters, and the fundamental group.


Class Notes For Math 905: Commutative Algebra, Instructor Sylvia Wiegand, Laura Lynch Jan 2010

Class Notes For Math 905: Commutative Algebra, Instructor Sylvia Wiegand, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Rings, ideals, algebraic sets and affine varieties, modules, localizations, tensor products, intersection multiplicities, primary decomposition, the Nullstellensatz