(last revision 4/05/17)

MATH 4321    INFORMATION SHEET FOR TEST 3    SPRING 2017

• The test will be in class on Thurs April 13; it will last 70 minutes and is worth 30% of your course grade.

• The relevant sections for the test are those covered on the homework through Section 48 inclusive. The homework for that material is posted online.

• See my website for my office hours and the GTA's office hours.

• You should learn definitions such as ring, subring, division ring, field, unit, zero divisor, integral domain, homomorphism, isomorphism, factor ring, field of quotients, (left/right) ideal, maximal ideal, prime ideal, irreducible polynomial, extension field, vector space, algebraic/transcendental element, finite extension. You should be ready to present examples like those occurring in the homework, and be able to show that a subset of a ring is a subring or a (left/right) ideal. Moreover, any question in the homework or from the Quiz or from Tests 1 & 2 is game for the test. Work through all previous tests from this class; see the homework website for the links.

• No calculators are allowed; no notes are allowed; no phones, no tablets, no electronic devices. You will need to put your belongings (including cell phones and tablets) by the side walls and possibly move seats in order to spread out in the room (if there are enough chairs & tables) - noncompliance will result in a score of 0 on the test.

• Bring some form of photo ID.

• Try to keep your eyes on your own work during the test.

• If you have a question on the test during the test, ask me during the test.

• If you wish to leave the room during the test, you should ask permission first & turn in your test to me. Only in exceptional circumstances will I let you continue the test should you return. (So it is better to be 3 minutes late to the test, rather than ask to go to the bathroom during the test.) If you finish early but prefer to stay in the room, then you should NOT get out any work, book nor item, no matter what the subject matter is, without first checking with me. Should you wish to leave the test early, then you may.

• I plan to return the graded test to you on Tues April 18 and discuss the solutions at that time. There will be a lecture as usual that day.