Difference between revisions of "Number theory"

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(Student Guides to Number Theory)
 
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'''Number theory''' is the field of [[mathematics]] associated with studying the [[integers]].
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'''Number theory''' is the field of [[mathematics]] associated with studying the properties and identities of [[ integer]]s.  
  
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==Overview==
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Number theory is a broad topic, and may cover many diverse subtopics, such as:
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*[[Modular arithmetic]]
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*[[Prime number]]s
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Some branches of number theory may only deal with a certain subset of the real numbers, such as [[integer]]s, [[positive]] numbers, [[natural number]]s, [[rational number]]s, etc. Some [[algebra]]ic topics such as [[Diophantine]] equations as well as some theorems concerning integer manipulation (like the [[Chicken McNugget Theorem ]]) are sometimes considered number theory.
  
== Introductory Topics ==
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== Student Guides to Number Theory ==
The following topics make a good introduction to number theory.
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* '''[[Number theory/Introduction | Introductory topics in number theory]]'''
* [[Prime number | Primes]]
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** Covers different kinds of integers such as [[prime number]]s, [[composite number]]s,  [[perfect square]]s and their relationships ([[multiple|multiples]], [[divisor|divisors]], and more).  Also includes [[base number]]s and [[modular arithmetic]].
** [[Sieve of Eratosthenes]]
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* '''[[Number theory/Intermediate | Intermediate topics in number theory]]'''
** [[Prime factorization]]
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* '''[[Number theory/Olympiad | Olympiad topics in number theory]]'''
* [[Composite number | Composite numbers]]
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* '''[[Number theory/Advanced topics | Advanced topics in number theory]]'''
* [[Divisibility]]
 
** [[Divisor | Divisors]]
 
*** [[Common divisor | Common divisors]]
 
**** [[Greatest common divisor | Greatest common divisors]]
 
*** [[Counting divisors]]
 
** [[Multiples]]
 
*** [[Common multiple | Common multiples]]
 
**** [[Least common multiple | Least common multiples]]
 
* [[Base numbers]]
 
* [[Diophantine equations]]
 
* [[Modular arithmetic]]
 
** [[Linear congruence]]
 
  
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== Resources ==
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=== Books ===
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* Introductory
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** ''the Art of Problem Solving Introduction to Number Theory'' by [[Mathew Crawford]] [https://artofproblemsolving.com/store/book/intro-number-theory (details)]
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** ''Elementary Number Theory: A Problem Oriented Approach '' by [[Joe Roberts]] [http://www.amazon.com/exec/obidos/ASIN/0262680289 (details)] Out of print but if you can find it in a library or used, you might love it and learn a lot. Writen caligraphically by the author.
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* General Interest
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** ''Fermat's Enigma'' by Simon Singh [http://www.amazon.com/exec/obidos/ASIN/0385493622/artofproblems-20 (details)]
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** ''Music of the Primes'' by Marcus du Sautoy [http://www.amazon.com/exec/obidos/ASIN/0066210704/artofproblems-20 (details)]
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** ''104 Number Theory Problems'' by Titu Andreescu, Dorin Andrica, Zuming Feng
  
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=== E-Book ===
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* [https://www.math.muni.cz/~bulik/vyuka/pen-20070711.pdf ''Problems in Elementary Number Theory'' by Hojoo Lee]
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* [https://numbertheoryguy.com/publications/olympiad-number-theory-book/ ''Intermediate Number Theory'' by Justin Stevens]
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* [http://artofproblemsolving.com/articles/files/SatoNT.pdf ''Number Theory'' by Naoki Sato]
  
== Intermediate Topics ==
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=== Online Courses===
An intermediate level of study involves many of the topics of introductory number theory, but involves an infusion of [[mathematical problem solving]] as well as [[algebra]].
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*Introductory Number Theory
* [[Diophantine equations]]
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** [https://thepuzzlr.com/courses/introduction-to-number-theory-course/ Introduction to Number Theory]
* [[Euclidean algorithm]]
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* Intermediate
* [[Modular arithmetic]]
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** [https://artofproblemsolving.com/school/course/catalog/intermediate-numbertheory Intermediate Number Theory]
** [[Linear congruence]]
 
*** [[Chinese Remainder Theorem]]
 
** [[Euler's Totient Theorem]]
 
** [[Fermat's Little Theorem]]
 
** [[Wilson's Theorem]]
 
  
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== Other Topics of Interest ==
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These are other topics that aren't particularly important for competitions and problem solving, but are good to know.
  
== Olympiad Topics ==
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* [[Fermat's Last Theorem]]
An Olympiad level of study involves familiarity with intermediate topics to a high level, a few new topics, and a highly developed [[proof writing]] ability.
 
* [[Diophantine equations]]
 
* [[Euler's Totient Theorem]]
 
* [[Fermat's Little Theorem]]
 
* [[Modular arithmetic]]
 
* [[Wilson's Theorem]]
 
  
=== Resources ===
 
  
* [http://www.artofproblemsolving.com/Resources/Papers/SatoNT.pdf Number Theory by Naoki Sato]
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=== Famous Unsolved Number Theory Problems ===
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* [[Birch and Swinnerton-Dyer conjecture]]
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* [[Collatz Problem]]
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* [[Goldbach Conjecture]]
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* [[Riemann Hypothesis]]
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* [[Twin Prime Conjecture]]
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[[Category:Number theory]]
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[[Category:Definition]]
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[[Category:Mathematics]]

Latest revision as of 23:08, 8 January 2024

Number theory is the field of mathematics associated with studying the properties and identities of integers.

Overview

Number theory is a broad topic, and may cover many diverse subtopics, such as:

Some branches of number theory may only deal with a certain subset of the real numbers, such as integers, positive numbers, natural numbers, rational numbers, etc. Some algebraic topics such as Diophantine equations as well as some theorems concerning integer manipulation (like the Chicken McNugget Theorem ) are sometimes considered number theory.

Student Guides to Number Theory

Resources

Books

  • Introductory
    • the Art of Problem Solving Introduction to Number Theory by Mathew Crawford (details)
    • Elementary Number Theory: A Problem Oriented Approach by Joe Roberts (details) Out of print but if you can find it in a library or used, you might love it and learn a lot. Writen caligraphically by the author.
  • General Interest
    • Fermat's Enigma by Simon Singh (details)
    • Music of the Primes by Marcus du Sautoy (details)
    • 104 Number Theory Problems by Titu Andreescu, Dorin Andrica, Zuming Feng

E-Book

Online Courses

Other Topics of Interest

These are other topics that aren't particularly important for competitions and problem solving, but are good to know.


Famous Unsolved Number Theory Problems