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Pavel Etingof Slava Gerovitch Tanya Khovanova ti:=:gt m --t-:ff :ff %-PB, -J,J::f,ltff]ii\iJ\ft K -1'-f-W. L: = k(k-1)/2 J: = k(k- l)(k-2)/6 00 1 PRIMES #'.t Christ ina Chen JE{E)lffi f" L 3 1 2 . A ff]-JA.7'Ji:f<Jilf (PRIMES 2011) A :tlP* L J CL 3 1 2 , c C;::: f ). Larry Guth*° Nets Katz tE 2007 c = 10. ! C > 4/3 mitfix;f. Joseph Zurier ;(:E 2014 [Z]. ftff]fi Chen, tE 1.16, ([CH], JJiOO 1). tPJ"!2Aff ! Christina, Tanya Khovanova, *°Dan Klain 3 [CKK]. ! Christina*° Joseph, tE PRIMES (Program for Research In Mathematics, Engineering, and §; web.mit. edu/ M J=J !2A*, PRIMES w §: Notices of the AMS, Vol. 62 (2015) , No . 8, p. 910- 918, Mathematical Research in High School: The PRIMES Experience, Pavel Etingof, Slava Gerovitch, and Tanya Khovanova, figure number 6. Copyright ©201.5 the American Mathematical Society. Reprinted with permission. All rights reserved. Pavel Etingof PRIMES §Jt1i:lfJ;':J®iJ'iiJ. etingof @math.mi t. edu. Slava Gerovitch PRIMES :i:ffi§:E{f, [email protected]. Tanya Khovanova PRIMES tanya@math. mi t. edu . . 348 .

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Page 1: fweb.mit.edu/slava/homepage/articles/PRIMES-EGK-Chinese.pdfJ ' jf T. ~ 3). *· *· (~ * {( ~

Pavel Etingof Slava Gerovitch Tanya Khovanova

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