
Explore the abstract algebra module, partitioned into different modules including linear algebra and calculus topics, with reinforcement via UDMA courses; knowledge of a previous module is assumed.
Define a group as a set with an associative binary operation, identity, and inverses. Identify subgroups, normal subgroups, and quotient groups, with examples like integers under addition and S3.
Examine Zn as an additive cyclic group of congruence classes modulo n, and apply gcd, Euclidean algorithm, and modular arithmetic to solve linear and diophantine equations.
Examine cyclic groups, generators via gcd with the order, and abelian classifications through direct sums of Z_p^k factors; contrast Z6 with Z2 ⊕ Z3 and explore nonabelian examples.
Explore rings, modules, and fields, including identities, zero divisors, and units; understand homomorphisms, kernels, images, and isomorphisms, and how ideals form substructures.
Complete the final quiz by answering a few questions within two and a half minutes each, pace yourself, and note that answers appear in the next lecture.
Review of abstract algebra quiz questions on group homomorphisms, orders in Z_n, and generators in Z5. Apply isomorphism concepts, gcd reasoning, and modular arithmetic to determine correct answers.
Complete module 6 of the GRE subject math exam prep and practice with full exams. Access resources on the course website, including study plans, handouts, coupons, and a Facebook community.
This course is a prep course for the GRE Subject exam in Mathematics. If you wish to apply for a grad program in math, statistics and such, this exam is required.
This is the sixth module and includes all the abstract algebra material needed in order to excel in the exam. More importantly, the course teaches techniques for solving problems FAST (since in the exam you will have 2.5 min per question - very little time).
We will go over the following topics:
The course is designed to review all that is necessary to get you up to speed and get you solving real exam problems. Content covered in the previous modules is assumed.
See the free intro lecture to get more details.
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