01861nam a22003137a 4500 29447 BD-DhAAL 20150802130228.0 150802s2008 txu b 001 0 eng d 2008924026 9780979926907 0979926904 (OCoLC)ocn248774755 JRY JRY AAM DLC BD-DhAAL lccopycat QA43 .A534 2008 510 22 Andreescu, Titu, 1956- 13440 Problems from the book / Titu Andreescu, Gabriel Dospinescu. Allen, TX : XYZ Press, c2008. xvi, 571 p. ; 22 cm. Includes bibliographies (p. 563-569) and index. Some useful substitutions -- Always Cauchy-Schwarz... --- Look at the exponent -- Primes and squares -- T2's lemma -- Some classical problems in extremal graphy theory -- Complex combinatorics -- Formal series revisited -- A brief introduction to algebraic number theory -- Arithmetic properties of polynomials -- Lagrange interpolation formula -- Higher algebra in combinatorics -- Geometry and numbers -- The smaller, the better -- Density and regular distribution -- The digit sum of a positive integer -- At the border of analysis and number theory -- Quadratic reciprocity -- Solving elementary inequalities using integrals --Pigeonhole principle revisited -- Some useful irreducibility criteria -- Cycles, paths, and other ways -- Some special applications of polynomials. 29447 Mathematics Problems, exercises, etc. 13441 Dospinescu, Gabriel. 13442 ddc BK 35129 35129 0 0 ddc 0 510_000000000000000_AND 0 55078 BRACUL BRACUL GEN 2015-08-02 Development Book Agency 11000.00 1 11 510 AND 3010029447 2023-01-15 2020-01-11 1 22000.00 2015-08-02 BK