The mock theta functions were invented by the Indian mathematician Srinivasa Ramanujan, who lived from 1887 until 1920. He discovered them shortly before his death. In this dissertation, I consider several of the examples that Ramanujan gave of mock theta functions, and relate them to real-analytic modular forms read more of weight 1/2 functions (Ramanujan used the word \theta functions where we would say \modu-lar forms today, so that \mock theta functions meant something like \fake modular forms), but that there is no single theta function whose asymptotic expansion agrees at all rational points with that of the mock theta function. Obviously, this is a basi It is surprising that the key to the k 2 case lies in one of Ramanujan's mock theta functions (6, 7): q: 1 n 1 qn2 j 1 n 1 qj q2j. Theorem 4. For q 1, G 2 q q 3; q3 q; q. From here we are led directly to the full asymptotics of P s(A 2). Namely: Theorem 5. P s(A 2) 2 2 s 1/2e 18s as s 2 0. Note that this is a much stronger result than the k 2 instance of theorem 2 of ref. 5
Mock Theta Functions Mock Thetafuncties (met een samenvatting in het Nederlands) Proefschrift Ter verkrijging van de graad van doctor aan de Universiteit Utrecht op gezag van de Rector Magnificus, Prof. dr. W.H. Gispen, ingevolge het besluit van het College voor Promoties in het openbaar te verdedigen op woensdag 30 oktober 2002 des ochtends te. RAMANUJAN'S MOCK THETA FUNCTIONS MICHAEL GRIFFIN, KEN ONO, AND LARRY ROLEN Abstract. In his famous deathbed letter, Ramanujan introduced the notion of a mock theta function, and he o ered some alleged examples. Recent work by Zwegers has elucidated the theory encompassing these examples. They are holomorphic parts of special harmonic weak.
In mathematics, particularly q-analog theory, the Ramanujan theta function generalizes the form of the Jacobi theta functions, while capturing their general properties. In particular, the Jacobi triple product takes on a particularly elegant form when written in terms of the Ramanujan theta. The function is named after Srinivasa Ramanujan 'mock theta functions'. For the mock theta function f.q/, Ramanujan claims that as q approaches an even-order 2k root of unity, we have f.q/ 5.1/k.1 q/.1 q3/.1 q / .1 2qC2q4 /DO.1/: We prove Ramanujan's claim as a special case of a more general result. The implied constants in Ramanujan's claim are not mysterious The mock theta functions stood out in that they too seemed to be related to combinatorial functions. We now know that the mock theta function f—q-, for example, is related to F. Dyson's rank-generating function, where the rank of a partition is equal to its largest part minus the number of its parts. By the time of the Ramanujan Centenary. In this Ph.D. thesis, written under the direction of D.B. Zagier and R.W. Bruggeman, we study the mock theta functions, that were introduced by Ramanujan. We show how they can be interpreted in the theory of (real-analytic) modular forms. In Chapter 1 we give results for Lerch sums (also called Appell functions, or generalized Lambert series). In Chapter 2 we consider indefinite theta. More mock theta functions were discovered afterward, including some of the 10th order [2, 3]. A variety of applications appear in the fields of hypergeometric functions, number theory, Mordell integrals, probability theory, and mathematical physics, where they are used to determine critical dimensions in some string theories
In 1920, the well-known mock theta functions were first introduced by Ramanujan in his last letter to Hardy [2, 3].Ramanujan listed seventeen functions which he called mock theta functions [4, 5].In 2002, Zwegers [6, 7] established the relationship between mock theta functions and real analytic vector-valued modular forms.Zwegers' breakthrough has developed the overarching theory of harmonic. A framework for Ramanujan's mock theta functions Building on earlier work expanding Ramanujan's examples and shedding light on their transfor-mationproperties,combinatorialimplications,andvariousrepresentations(suchasthoseinaform compatiblewithZwegers'three-foldpathdescribedbelow). Ramanujan discovered functions he called mock theta functions which over eighty years later were recognized as pieces of harmonic Maass forms. This book contains the essential features of the theory of harmonic Maass forms and mock modular forms, together with a wide variety of applications to algebraic number theory,. mock theta functions were rather mysterious and no satisfactory general definition of them was known. This problem was finally solved a few years ago by Zwegers in his PhD thesis. His definition of mock theta functions revolutionized the subject, simplifing many old proofs and leading to many new results
Very recently, Griffin et al. established for the first time that Ramanujan's mock theta functions actually satisfy his own definition In his famous deathbed letter, Ramanujan defined the notion of a mock theta function and offered some examples of functions he believed satisfied his definition These results were after Zwegers' papers. As a result, we know that each of Ramanujan's mock theta functions is the holomorphic part of a weight \(1/2\) harmonic weak Maass form. This realization of a mock theta function has led to many applications in other associated subjects such as number theory
Keywords : Mock theta function, q-Multibasic expansion, q-Integral. 278 Bharkar Srivastava 1. Introduction Early in 1920, January 12, 1920 to be exact, three months before his death, S. Ramanujan wrote his last letter to G.H. Hardy [7, pp.354-355]. H mock theta functions and quantum modular forms - volume 1 - amanda folsom, ken ono, robert c. rhoades Skip to main content Accesibility Help We use cookies to distinguish you from other users and to provide you with a better experience on our websites and others for mock theta functions of seventh order were given by Hickerson [21], [22]. See [1] for a wide-ranging survey and references on such problems (i.e., of the first type) about mock theta functions. Ramanujan emphasized that a mock theta function should not have the same singularities at roots of unity as a genuine theta function The fact that G 2 (q) is an infinite product (in fact, a modular form) times the mock theta function, χ(q), suggests that the analytic nature of G k (q) for k > 2 may be very interesting. Indeed, additional discoveries may well lead to the extension of Theorem 4 to results such as those stated in Conjecture
mock theta functions of type (p,1) as line integrals in hyperbolic p-space. Keywords: indefinite theta series and integrals, Mock modular forms, Weil representation 1. Introduction Theta series are a very important tool for the construction of automorphic forms with many and significant applications ranging from number theory to physics modular theta functions. He then asks whether other Eulerian series with similar asymptotics are necessarily the sum of a modular theta function and a function which is O.1/at all roots of unity. He writes: 'The answer is it is not necessarily so. When it is not so I call the function Mock #-function , ' New congruences for partitions related to mock theta functions ', J. Number Theory 175 (2017), 51 - 65. Recommend this journal Email your librarian or administrator to recommend adding this journal to your organisation's collection The mock theta-functions give us tantalizing hints of a gr and synthesis still to be discover ed. Somehow it should be p ossible to build them into a coher ent group-the or etical structur e.
Mock Theta Functions Mock Theta Functions. 2021 MAY 23. Date Sunday, May 23, 2021 (All day) Location. Vanderbilt University. Upcoming Events. 2021 Mar 12. Number Theory in Honor of R. Balasubramanian's 70th Birthday. Friday, Mar 12, 2021 (All day) to Tuesday, Mar 16, 2021 (All day) 2021 Mar 26 Recently, Mortenson (Proc. Edinb. Math. Soc. 4:1-13, 2015) explored the bilateral series in terms of Appell-Lerch sums for the universal mock theta function g 2 (x, q).The purpose of this paper is to consider the bilateral series for the universal mock theta function g 3 (x, q).As a result, we present the bilateral series associated with the odd order mock theta functions in terms of Appell. In quantization. Theta functions are naturally thought of as being the states in the geometric quantization of the given complex space, the given holomorphic line bundle being the prequantum line bundle and the condition of holomorphicity of the section being the polarization condition. See for instance ().In this context they play a proming role specifically in the quantization of higher.
Ramanujan's last letter to Hardy concerns the asymptotic properties of modular forms and his 'mock theta functions'. For the mock theta function \$f(q)\$, Ramanujan claims that as \$q. Abstract: Recently, Andrews, Dixit and Yee introduced partition functions associated with Ramanujan/Watson third order mock theta functions $\omega(q)$ and $\nu(q)$. In this paper, we find several new exact generating functions for those partition functions as well as the associated smallest parts functions and deduce several new congruences modulo powers of 5
Mock Modular Result Theorem (Folsom, Garthwaite, Kang, S-, Treneer) The functions V mn are mock modular forms of weight 1=2 with respect to the congruence subgroups A mn. Moreover, the shadow of V mn is given by a constant multiple of the odd eta-theta function E m 2˝ c2 m . In particular, the functions V mn may be completed to form harmonic. James Mc Laughlin, Mock Theta Function Identities Deriving from Bilateral Basic Hypergeometric Series, Analytic Number Theory, Modular Forms and q-Hypergeometric Series, 10.1007/978-3-319-68376-8_29, (503-531), (2017) In Chapter 2 we consider indefinite theta functions of type (r-1,1). Chapter 3 deals with Fourier coefficients of meromorphic Jacobi forms. In Chapter 4 we use the results from Chapter 2 to give explicit results for 8 of the 10 fifth order mock theta functions and all 3 seventh order functions, that were originally defined by Ramanujan We now explain how one can recover Zwegers' mock theta functions in this setting. So let V be of signature and let be non-collinear as in example 2.4, that is, and . Then c 1 and c 2 define two different points in the same component of D, say , which by abuse of notation we also denote by c 1 and c 2. Let be the geodesic arc segment in.
In 1987, Freeman Dyson noted, The mock theta functions give us tantalizing hints of a grand synthesis still to be discovered . . . . This remains a challenge for the future. Now, Ken Ono and Kathrin Bringmann have constructed an explanatory framework that, for the first time, shows what mock theta functions are and how to derive them In this Ph.D. thesis, written under the direction of D.B. Zagier and R.W. Bruggeman, we study the mock theta functions, that were introduced by Ramanujan. We show how they can be interpreted in the theory of (real-analytic) modular forms. In Chapter 1 we give results for Lerch sums (also called Appell functions, or generalized Lambert series)
Partitions related to mock theta functions were widely studied in the literature. Recently, Andrews et al. introduced two new kinds of partitions counted by p ω (n) and p ν (n), whose generating functions are q ω (q) and ν (− q), where ω (q) and ν (q) are two third mock theta functions Mock theta functions are mysterious functions and not much is known about them. Ramanujan in his last letter to Hardy gave a list of 17 functions F(q) and called them mock theta functions. He called them mock theta functions as they were not theta functions. He stated that as q radially approaches any point [e.sup.2[pi]ir] (r rational) there is. Irrationality of Mock Theta Functions of Order 3 The theory of what are commonly called Cantor series began in 1869 with Georg Cantor's second publication [2], a seminal paper that presented a necessary and ON THE IRRATIONALITY OF MOCK THETA FUNCTIONS 3 sufficient condition for series of the form ∞ X bn S= , (14) a a n=1 1 2 · · · an where the ai , bi are integers to have. The f(q) mock theta function conjecture and partition ranks The f(q) mock theta function conjecture and partition ranks Bringmann, Kathrin; Ono, Ken 2006-01-31 00:00:00 In 1944, Freeman Dyson initiated the study of ranks of integer partitions. Here we solve the classical problem of obtaining formulas for N e (n) (resp. N o (n)), the number of partitions of n with even (resp. odd) rank
Mock Theta Functions The bilateral series corresponding to many of the third-, fifth-, sixth- and eighth order mock theta functions may be derived as special cases of $_2\psi_2$ series \[ \sum_{n=-\infty}^{\infty}\frac{(a,c;q)_n}{(b,d;q)_n}z^n. \] Three transformation formulae for this series due to Bailey are used to derive various transformation and summation formulae for both these mock theta functions and the. In this book in addition to introduce Mock theta functions of order three, five and seven, The convergence of mock theta functions of order three, five and seven to an irrational number at an infinite points is discussed.more over the Irrationality behavior of four of the Ramanujan's infinite series, and three of the G.N Watson Mock theta functions of order three at infinite points is also.
Mock theta functions and quantum modular forms Larry Rolen University of Cologne This research was supported by the University of Cologne and the DFG. June 2, 2015 Larry Rolen Mock theta functions and quantum modular forms. Ramanujan's \Deathbed letter I In 1920, Ramanujan gave a 17 \Eulerian series, such a The legacy of Ramanujan's mock theta functions: Harmonic Maass forms in number theory History G. N. Watson's 1936 Presidential Address \Ramanujan's discovery of the mock theta functions makes it obvious that his skill and ingenuity did not desert him at the oncoming of his untimely end universal mock theta function of Gordon{McIntosh that specializes to the mock theta functions Ramanujan wrote down [22]|arise from the Jacobi triple product, a fundamental object in number theory and combinatorics [8], and are generally \entangled with rank generating functions for unimodal sequences, under the action of the q-bracket operato universal mock theta function of Gordon{McIntosh that specializes to the mock theta functions Ramanujan wrote down [21]|arise from the Jacobi triple product, a fundamental object in number theory and combinatorics [7], and are generally \entangled with rank generating functions for unimodal sequences, under the action of the q-bracket operato
The mock theta functions were there and my simple summation identity in (9) was a tool, to give generating functions for the partial mock theta functions. In partial mock theta functions we sum the defining series from 0 to N instead of from 0 to infinity, that is, for the mock theta function [[bar.[PSI]].sub.0](q) PARTIAL AND MOCK THETA FUNCTIONS 3 Remark. According to our de nition, q (q24) is a partial theta function. Similar theorems exist for partial theta functions with nontrivial character . This theorem explains that partial theta functions may be constructed as lower half plane analogous of the mock theta functions. Remark k-RUN OVERPARTITIONS AND MOCK THETA FUNCTIONS KATHRIN BRINGMANN, ALEXANDER E. HOLROYD, KARL MAHLBURG, AND MASHA VLASENKO Abstract. In this paper we introduce k-run overpartitions as natural analogs to partitions without k-sequences, which were rst de ned and studied by Holroyd, Liggett, and Romik.Following their work as well as that of Andrews, we prove a number of results for k-run. Ramanujan's mock theta functions and their applications (after Zwegers and Ono-Bringmann). In Bourbaki seminar. Volume 2007/2008. Exposes 982--996 (pp. 143-164, Exp. No. 986). Paris: Société Mathématique de France (SMF) Recently, Andrews, Dixit, and Yee defined two partition functions p ω (n) and p ν (n) that are related with Ramanujan's mock theta functions ω(q) and ν(q) , respectively. In this paper, we present two variable generalizations of their results
Tag Archives: Mock Theta Functions. The True Heirs To Ramanujan. Posted on September 19, 2017 by Persiflage. If you are in need of some light relief, you could do worse than peruse the opinions of Doron Zeilberger, who, if viewed strictly through the lens of these ramblings,. Abstract. Standard applications of the Bailey chain preserve mixed mock modularity but not mock modularity. After illustrating this with some examples, we show how to use a change of base in Bailey pairs due to Bressoud, Ismail and Stanton to explicitly construct families of q-hypergeometric multisums which are mock theta functions Zwegers maakte een uitgebreide studie van de voorbeelden van mock thetafuncties waarover Ramanujan in zijn brief aan Hardy schreef, waarop hij in 2002 promoveerde. Zwegers' werk was een grote stap voorwaarts richting het doorgronden van mock theta functies. Toch bleven er nog raadsels over voor wiskundigen Home » Optimal Jacobi Forms and Mock Theta Functions; Optimal Jacobi Forms and Mock Theta Functions. Playing this video requires the latest flash player from Adobe function ω(q)isestablished In view of q-hypergeometric relations between universal mock theta functions and Appell-Lerchsums,consideringthesubstitutionn.
1. Introduction. In his last letter to G. H. Hardy [], S. Ramanujan described a mock theta function which is a function f(q) defined by a q-series which converges for |q| < 1 and which satisfies the following two conditions.For every root of unity ζ, there is a theta function θ ζ (q) such that the difference is bounded as q → ζ radially.. There is no single theta function which works for. These functions are q-series with exponential singularities such that the arguments terminate for some power t^N. In particular, if f(q) is not a Jacobi theta function, then it is a mock theta function if, for each root of unity rho, there is an approximation of the for of Ramanujan's 'Lost' Notebook more mock theta functions were identifled and studied by Andrews and Hickerson [6] and Choi [9] who have designated them as mock theta functions of order six and ten respectively. Recently, Gordon and McIntosh [10] have deflned the following eighth mock theta functions of order eight S0(q) = X1 n=0 qn2(¡q. HARMONIC MAASS FORMS, MOCK MODULAR FORMS, AND QUANTUM MODULAR FORMS KEN ONO In his enigmatic death bed letter to Hardy, written in January 1920, Ramanujan intro-duced the notion of a mock theta function. Despite many works, very little was known about the role that these functions play within the theory of automorphic and modu-lar forms until 2002
Algebraic formulas for Ramanujan's mock theta functions. We give nite algebraic formulas for the coe cients of Ramanujan's order 3 mock theta functions f(q) and !(q) in terms of traces of CM-values of a weakly holomorphic modular function (see Theorem 3.1). Date: November 25, 2016. 2000 Mathematics Subject Classi cation. 11F37, 11F27, 11G16 Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases We found 2 dictionaries with English definitions that include the word mock theta function: Click on the first link on a line below to go directly to a page where mock theta function is defined Mock Theta Function ˆ 3(q) by George E. Andrews Dedicated to an outstanding mathematician and my good friend, Peter Paule. Keyword: Partitions, q-series, mock theta function Abstract The object of this paper is to build on a previous study related to Schur's 1926 partition theorem done by Andrews, Bringmann and Mahlburg what is mock theta function Share with your friends. Share 0. . I am okk..u ?? bye i have to go.. mom gussa aa mere naal..jaana painaa. 0 ; View Full Answer Kya yahi he. 0 . . I d k. 0 ; Nahi dii nahi dekhee apne kyaa?? 0 ; Naymila. 0 ; Koee na Pavit dii. Kaise ho. 0 ; Wait I post.
Also remember that this mock theta functions are not the same as Ramanujan's theta functions; Just to not confuse these subtle mathematical terms!). These are not quite the Riemann Zeta functions, which are well known, but more similar to the Jacobi theta functions Downloadable! We consider the second-order mock theta function ð 'Ÿ 5 ( ð 'ž ), which Hikami came across in his work on mathematical physics and quantum invariant of three manifold. We give their bilateral form, and show that it is the same as bilateral third-order mock theta function of Ramanujan. We also show that the mock theta function ð 'Ÿ 5 ( ð 'ž ) outside the unit. Click here to get an answer to your question ️ What are Mock Theta Functions? DrNykterstein DrNykterstein 11.05.2020 Math Secondary School What are Mock Theta Functions? 2 See answers pathanyasmeen12 pathanyasmeen1
In the special case of 1-run overpartitions we further relate the generating function to one of Ramanujan's mock theta functions. Finally, we describe the relationship between k -run overpartitions and certain sequences of random events, and use probabilistic estimates in order to determine the asymptotic growth behavior of the number of k -run overpartitions of size n Created Date: 11/14/2008 1:51:58 P arXiv:1208.1330v1 [math.NT] 7 Aug 2012 ON THREE THIRD ORDER MOCK THETA FUNCTIONS AND HECKE-TYPE DOUBLE SUMS ERIC MORTENSON Abstract. We obtain four Hecke-type double sums for thr Articles with article keyword: Mock theta functions Dyson's ranks and Maass forms. Pages 419-449 by Kathrin Bringmann, Ken Ono | From volume 171-
We consider the second-order mock theta function 5 (), which Hikami came across in his work on mathematical physics and quantum invariant of three manifold. We give their bilateral form, and show that it is the same as bilateral third-order mock theta function of Ramanujan Partitions with short sequences and mock theta functions. Proceedings of the National Academy of Sciences of the United States of America , 102 (13), 4666-4671 N = 2 supersymmetric gauge theory and Mock theta functions Setup (X,g): four-dim., compact, smooth, simply connected manifold w/ Riemannian metric g, Hodge star ∗ : Λp(X) → Λ4−p(X) with ∗2 = (−1)p; Simplest example of a manifold which is not of simple type: X = CP2 w/ the Fubini-Study metric g, g is K¨ahler, has positive scalar. Define Theta function. Theta function synonyms, Theta function pronunciation, Theta function translation, English dictionary definition of Theta function. one of a group of functions used in developing the properties of elliptic functions. See also: Theta Webster's Revised Unabridged Dictionary, published 1913..