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Mathematics - Number Theory and Discrete Mathematics | Pell and Pell–Lucas Numbers with Applications

Pell and Pell–Lucas Numbers with Applications

Koshy, Thomas

2015, XXIII, 431 p. 139 illus., 1 illus. in color.

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  • ​​Invaluable resource with extensive and in-depth coverage of topic
  • Broad audience of students and math teachers/instructors at various levels, depending on college or university, computer scientists and the mathematically curious
  • Presentation is rigorous yet user-friendly, interweaving an engaging historical context
  • Valuable applications to number theory, combinatorics, graph theory, geometry, and interesting math puzzles​ ​

Pell and Pell–Lucas Numbers has been carefully crafted as an undergraduate/graduate textbook; the level of which depends on the college/university and the instructor’s preference. The exposition moves from the basics to more advanced topics in a systematic rigorous fashion, motivating  the reader with numerous examples, figures, and exercises. Only a strong foundation in precalculus, plus a good background in matrices, determinants, congruences, and combinatorics is required. The text may be used in a variety of number theory courses, as well as in seminars, workshops, and other capstone experiences for teachers in-training and instructors at all levels.


A number of  key features  on the Pell family surrounds the historical flavor that is interwoven into an extensive, in-depth coverage of this unique text on the subject. Pell and Pell-Lucas numbers, like the well-known Fibonacci and Catalan numbers, continue to intrigue the mathematical community with their beauty and applicability. Beyond  the classroom setting, the professional mathematician, computer scientist, and other university faculty will greatly benefit from exposure to a range of mathematical skills involving pattern recognition, conjecturing, and problem-solving techniques; these insights and tools are presented in an array of applications to combinatorics, graph theory, geometry, and various other areas of discrete mathematics.


Pell and Pell-Lucas Numbers provides a powerful tool for extracting numerous interesting properties of a vast array of number sequences. It is a fascinating book, offering boundless opportunities for experimentation and exploration for the mathematically curious, from   student, to  the professional, amateur number theory enthusiast, and  talented high schooler.


About the author: Thomas Koshy is Professor Emeritus of Mathematics at Framingham State University in Framingham, Massachusetts. In 2007, he received the Faculty of the Year Award and his publication Fibonacci and Lucas numbers with Applications won the Association of American Publishers' new book award in 2001. Professor Koshy has also authored numerous articles on a wide spectrum of topics and more than  seven books, among them,  Elementary Number Theory with Applications, second edition; Catalan Numbers with Applications;  Triangular Arrays with Applications; and  Discrete Mathematics with Applications.

Content Level » Upper undergraduate

Keywords » Chebyshev Polynomials - Pell Fibonacci - Pell Triangle - Pell numbers - Pell–Lucas numbers - Pell’s Equation - Pythagorean Triples - Triangular Numbers

Related subjects » History of Mathematical Sciences - Mathematics - Number Theory and Discrete Mathematics

Table of contents 

Preface.- List of Symbols.- Abbreviations.- 1. Fundamentals.- 2. Pell’s Equation.- 3. Continued Fractions.- 4. Pythagorean Triples.- 5. Triangular Numbers.- 6. Square-Triangular Numbers.- 7. Pell and Pell-Lucas Numbers.- 8. Additional Pell Identities.- 9. Pascal’s Triangle and the Pell Family.- 10. Pell Sums and Products.- 11. Generating Functions for the Pell Family.- 12. Pell Walks.- 13. Pell Triangles. - 14. Pell and Pell-Lucas Polynomials.- 15. Pellonometry.- 16. Pell Tilings.- 17. Pell-Fibonacci Bridges.- 18. An Extended Pell Family.- 19. Chebyshev Polynomials.- 20. Chebyshev Tilings.- Appendix.- References.- Index.

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