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Dr. John R. Durbin is a professor of Mathematics at The University of Texas Austin. A native Kansan, he received B.A. and M.A. degrees from the University of Wichita (now Wichita State University), and a Ph.D. from the University of Kansas. He came to UT immediately thereafter.
Professor Durbin has been active in faculty governance at the University for many years. He served as chair of the Faculty Senate, 1982-84 and 1991-92, and as Secretary of the General Faculty, 1975-76 and 1998-2003.
In September of 2003 he received the University & Civitatis Award,in recognition of dedicated and meritorious service to the University above and beyond the regular expectations of teaching, research, and writing.
He has received a Teaching Excellence Award from the College of Natural Sciences and an Outstanding Teaching Award from the Department of Mathematics.
Introduction | p. 1 |
Mappings and Operations | p. 9 |
Mappings | p. 9 |
Composition. Invertible Mappings | p. 15 |
Operations | p. 19 |
Composition as an Operation | p. 25 |
Introduction to Groups | p. 30 |
Definition and Examples | p. 30 |
Permutations | p. 34 |
Subgroups | p. 41 |
Groups and Symmetry | p. 47 |
Equivalence. Congruence. Divisibility | p. 52 |
Equivalence Relations | p. 52 |
Congruence. The Division Algorithm | p. 57 |
Integers Modulo n | p. 61 |
Greatest Common Divisors. The Euclidean Algorithm | p. 65 |
Factorization. Euler's Phi-Function | p. 70 |
Groups | p. 75 |
Elementary Properties | p. 75 |
Generators. Direct Products | p. 81 |
Cosets | p. 85 |
Lagrange's Theorem. Cyclic Groups | p. 88 |
Isomorphism | p. 93 |
More on Isomorphism | p. 98 |
Cayley's Theorem | p. 102 |
RSA Algorithm | p. 105 |
Group Homomorphisms | p. 106 |
Homomorphisms of Groups. Kernels | p. 106 |
Quotient Groups | p. 110 |
The Fundamental Homomorphism Theorem | p. 114 |
Introduction to Rings | p. 120 |
Definition and Examples | p. 120 |
Integral Domains. Subrings | p. 125 |
Fields | p. 128 |
Isomorphism. Characteristic | p. 131 |
The Familiar Number Systems | p. 137 |
Ordered Integral Domains | p. 137 |
The Integers | p. 140 |
Field of Quotients. The Field of Rational Numbers | p. 142 |
Ordered Fields. The Field of Real Numbers | p. 146 |
The Field of Complex Numbers | p. 149 |
Complex Roots of Unity | p. 154 |
Polynomials | p. 160 |
Definition and Elementary Properties | p. 160 |
Appendix to Section 34 | p. 162 |
The Division Algorithm | p. 165 |
Factorization of Polynomials | p. 169 |
Unique Factorization Domains | p. 173 |
Quotient Rings | p. 178 |
Homomorphisms of Rings. Ideals | p. 178 |
Quotient Rings | p. 182 |
Quotient Rings of F[X] | p. 184 |
Factorization and Ideals | p. 187 |
Galois Theory: Overview | p. 193 |
Simple Extensions. Degree | p. 194 |
Roots of Polynomials | p. 198 |
Fundamental Theorem: Introduction | p. 203 |
Galois Theory | p. 207 |
Algebraic Extensions | p. 207 |
Splitting Fields. Galois Groups | p. 210 |
Separability and Normality | p. 214 |
Fundamental Theorem of Galois Theory | p. 218 |
Solvability by Radicals | p. 219 |
Finite Fields | p. 223 |
Geometric Constructions | p. 229 |
Three Famous Problems | p. 229 |
Constructible Numbers | p. 233 |
Impossible Constructions | p. 234 |
Solvable and Alternating Groups | p. 237 |
Isomorphism Theorems and Solvable Groups | p. 237 |
Alternating Groups | p. 240 |
Applications of Permutation Groups | p. 243 |
Groups Acting on Sets | p. 243 |
Burnside's Counting Theorem | p. 247 |
Sylow's Theorem | p. 252 |
Symmetry | p. 256 |
Finite Symmetry Groups | p. 256 |
Infinite Two-Dimensional Symmetry Groups | p. 263 |
On Crystallographic Groups | p. 267 |
The Euclidean Group | p. 274 |
Lattices and Boolean Algebras | p. 279 |
Partially Ordered Sets | p. 279 |
Lattices | p. 283 |
Boolean Algebras | p. 287 |
Finite Boolean Algebras | p. 291 |
Sets | p. 296 |
Proofs | p. 299 |
Mathematical Induction | p. 304 |
Linear Algebra | p. 307 |
Solutions to Selected Problems | p. 312 |
Photo Credit List | p. 326 |
Index of Notation | p. 327 |
Index | p. 330 |
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The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.