Rank of partition and mock theta conjecture

order 3 Ramanujan mock theta function

• 3rd order mock theta functions
• \(f(q) = \sum_{n\ge 0} {q^{n^2}\over (-q;q)_n^2} =1+\sum_{n\ge 1} \frac{q^{n^2}}{(1+q)^2(1+q^2)^2\cdots{(1+q^{n})^2}}={2\over \prod_{n>0}(1-q^n)}\sum_{n\in Z}{(-1)^nq^{3n^2/2+n/2}\over 1+q^n}\)
• coefficients
  1, 1, -2, 3, -3, 3, -5, 7, -6, 6, -10, 12, -11, 13, -17, 20, -21, 21, -27, 34, -33, 36, -46, 51, -53, 58, -68, 78, -82, 89, -104, 118, -123, 131, -154, 171, -179, 197, -221, 245, -262, 279, -314, 349, -369, 398, -446, 486, -515, 557, -614, 671, -715, 767, -845, 920, -977, 1046, -1148, 1244
  http://www.research.att.com/~njas/sequences/A000025
  http://www.research.att.com/~njas/sequences/b000025.txt
  
• use mathematica 'integer partitions' or the following

1. Series[(1 + 4 Sum[(-1)^n q^(n (3 n + 1)/2)/(1 + q^n), {n, 1, 10}])/
   Sum[(-1)^n q^(n (3 n + 1)/2), {n, -8, 8}], {q, 0, 100}]

 

 

 

Andrews-Dragonette

• [Dragonette1952] and [Andrews1966]
• concerns the question of partitions with even rank and odd rank
• rank of partition =  largest part - number of parts
  9의 분할인 {7,1,1}의 경우, rank=7-3=4
  9의 분할인 {4,3,1,1}의 경우, rank=4-4=0
  
• \(N_e(n), N_o(n)\) number of partition with even rank and odd rank
• \(p(n)=N_e(n)+N_o(n)\)
• \(\alpha(n)=N_e(n)-N_o(n)\)
• this is in fact the coefficient of mock theta function
  \(f(q) = \sum_{n\ge 0} \alpha(n)q^n\)
  
• thus we need modularity of f(q) to get exact formula for \(\alpha(n)\) as \(p(n)\) was obtained by the circle method

 

 

harmonic Maass form of weight 1/2

• Zweger's completion

 

 

 

 

generalization

• crank

 

 

history

• http://www.google.com/search?hl=en&tbs=tl:1&q=

 

 

 

 

books

• 찾아볼 수학책
  
• http://gigapedia.info/1/mock+theta
• http://gigapedia.info/1/
• http://gigapedia.info/1/
• http://gigapedia.info/1/
• http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Dstripbooks&field-keywords=

 

encyclopedia

• http://ko.wikipedia.org/wiki/
• http://en.wikipedia.org/wiki/
• http://en.wikipedia.org/wiki/
• http://en.wikipedia.org/wiki/
• Princeton companion to mathematics(Companion_to_Mathematics.pdf)

 

 

question and answers(Math Overflow)

• http://mathoverflow.net/search?q=
• http://mathoverflow.net/search?q=
• http://mathoverflow.net/search?q=

 

 

blogs

• Puzzle Solved: Ramanujan's Mock Theta Conjectures
  구글 블로그 검색
  
  • http://blogsearch.google.com/blogsearch?q=
  • http://blogsearch.google.com/blogsearch?q=
  • http://blogsearch.google.com/blogsearch?q=

 

 

articles

• The f(q) mock theta function conjecture and partition ranks Kathrin Bringmann and Ken Ono, Inventiones Mathematicae Volume 165, Number 2, 2006
  
• Partitions : at the interface of q-series and modular forms
  
  • Andrews, George E., 2003
    

• [Dragonette1952]Some asymptotic formulae for the mock theta series of Ramanujan
  
  • Dragonette, Leila A. (1952), Transactions of the American Mathematical Society 72: 474–500
• [Andrews1966]On the theorems of Watson and Dragonette for Ramanujan's mock theta functions
  
  • Andrews, George E. (1966), American Journal of Mathematics 88: 454–490
• 논문정리
• http://www.ams.org/mathscinet
• http://www.zentralblatt-math.org/zmath/en/
• http://pythagoras0.springnote.com/
• http://math.berkeley.edu/~reb/papers/index.html
• http://front.math.ucdavis.edu/search?a=&t=&c=&n=40&s=Listings&q=
• http://www.ams.org/mathscinet/search/publications.html?pg4=AUCN&s4=&co4=AND&pg5=TI&s5=&co5=AND&pg6=PC&s6=&co6=AND&pg7=ALLF&co7=AND&Submit=Search&dr=all&yrop=eq&arg3=&yearRangeFirst=&yearRangeSecond=&pg8=ET&s8=All&s7=
• http://dx.doi.org/10.1007/s00222-005-0493-5

 

 

experts on the field

• http://arxiv.org/