## Overview

Instructor | Dr. Armin Straub
ILB 313 straub@southalabama.edu (251) 460-7262 (please use e-mail whenever possible) |

Office hours | TR, 9:20-12:20pm, 1:50-2:30pm, or by appointment
however, no office hour Thursdays, 9:55-11:10am |

Lecture | TR, 4:30-5:45pm, in ILB 345 (Section 502). |

Midterm exams | The dates for our three midterm exams are:
Tuesday, September 20 Thursday, October 20 Thursday, November 17 |

Final exam | Tuesday, December 6 — 3:30pm-5:30pm |

Text |
Elementary Number Theory,
by David M. Burton (McGraw Hill, 7th Ed., 2011) |

Syllabus | syllabus.pdf |

## Lecture sketches

Date | Sketch | In the book | Comments |
---|---|---|---|

08/16 | lecture01.pdf | mix from 3.1 and 3.2 | think about the variations mentioned after the proofs |

08/18 | lecture02.pdf | 1.1 | Homework: Examples 8, 9 |

08/23 | lecture03.pdf | 1.1 | Homework: homework01.pdf
due in class on Thursday, Sep 1 |

08/25 | lecture04.pdf | 1.2 | carefully go through the proof of Theorem 20
(It is good practice of both induction and working with the sigma notation for sums.) |

08/30 | lecture05.pdf | 2.1/2.2 | Homework: homework02.pdf
due in class on Thursday, Sep 8 |

09/01 | lecture06.pdf | 2.2/2.3/2.4 | |

09/06 | lecture07.pdf | 2.4/2.5 | Homework: homework03.pdf
due in class on Thursday, Sep 15 |

09/08 | lecture08.pdf | 2.5 | start preparing for our first midterm: midterm01-practice.pdf
midterm01-practice-solution.pdf |

09/13 | lecture09.pdf | 2.5/3.1 | do the practice problems (solutions also posted)
the midterm is next Tuesday, Sep 20 |

09/15 | review | get ready for the exam! | |

09/22 | lecture10.pdf | 3.2/3.3/4.2 | |

09/27 | lecture11.pdf | 4.2/5.2 | Homework: homework04.pdf
due in class on Tuesday, Oct 11 |

09/29 | lecture12.pdf | 5.2/8.2/4.3 | |

10/04 | lecture13.pdf | 4.3 | Enjoy Fall Break! |

10/11 | lecture14.pdf | 4.4 | Start reviewing for the midterm next week! |

10/13 | lecture15.pdf | 4.4 | Practice problems: midterm02-practice.pdf
midterm02-practice-solution.pdf |

10/18 | review | get ready for the exam! | |

10/25 | lecture16.pdf | 4.4/7.2 | |

10/27 | lecture17.pdf | 7.2/7.3 | Homework: Example 110 in lecture sketch
will be part of the next homework set |

11/01 | lecture18.pdf | 7.3/5.2 | Homework: Example 117 in lecture sketch
will be part of the next homework set |

11/03 | lecture19.pdf | 5.3 | |

11/08 | lecture20.pdf | 5.3/15.2 | Homework: homework05.pdf
due in class on Tuesday, Oct 15 |

11/10 | lecture21.pdf | 15.2/15.3 | start preparing for our third midterm: midterm03-practice.pdf
midterm03-practice-solution.pdf |

11/15 | review | get ready for the exam! | |

11/29 | lecture22.pdf | 15.3 | start preparing for the final exam! |

## Homework and solutions

- homework01.pdf, homework01-solution.pdf
- homework02.pdf, homework02-solution.pdf
- homework03.pdf, homework03-solution.pdf
- homework04.pdf, homework04-solution.pdf
- homework05.pdf, homework05-solution.pdf

## Exams and practice material

There will be three in-class midterm exams and a comprehensive final exam. Notes, books, calculators or computers are not allowed during any of the exams.

Our exam schedule is:

- Midterm Exam 1: Tuesday, September 20
- Midterm Exam 2: Thursday, October 20
- Midterm Exam 3: Thursday, November 17
- Final Exam: Tuesday, December 6 — 3:30pm-5:30pm

The following material will help you prepare for the exams.

- Midterm Exam 1: midterm01-practice.pdf

Solutions: midterm01-practice-solution.pdf - Midterm Exam 2: midterm02-practice.pdf

Solutions: midterm02-practice-solution.pdf - Midterm Exam 3: midterm03-practice.pdf

Solutions: midterm03-practice-solution.pdf