Ramanujan's Theta Functions
Ramanujan's Theta Functions

Author: Shaun Cooper

Publisher: Springer

Published: 2017-06-12

Total Pages: 696

ISBN-13: 3319561723

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Theta functions were studied extensively by Ramanujan. This book provides a systematic development of Ramanujan’s results and extends them to a general theory. The author’s treatment of the subject is comprehensive, providing a detailed study of theta functions and modular forms for levels up to 12. Aimed at advanced undergraduates, graduate students, and researchers, the organization, user-friendly presentation, and rich source of examples, lends this book to serve as a useful reference, a pedagogical tool, and a stimulus for further research. Topics, especially those discussed in the second half of the book, have been the subject of much recent research; many of which are appearing in book form for the first time. Further results are summarized in the numerous exercises at the end of each chapter.

Ramanujan's Theta Functions
Ramanujan's Theta Functions

Author: Shaun Cooper

Publisher: Springer

Published: 2018-08-02

Total Pages: 687

ISBN-13: 9783319858432

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Theta functions were studied extensively by Ramanujan. This book provides a systematic development of Ramanujan’s results and extends them to a general theory. The author’s treatment of the subject is comprehensive, providing a detailed study of theta functions and modular forms for levels up to 12. Aimed at advanced undergraduates, graduate students, and researchers, the organization, user-friendly presentation, and rich source of examples, lends this book to serve as a useful reference, a pedagogical tool, and a stimulus for further research. Topics, especially those discussed in the second half of the book, have been the subject of much recent research; many of which are appearing in book form for the first time. Further results are summarized in the numerous exercises at the end of each chapter.

Number Theory in the Spirit of Ramanujan
Number Theory in the Spirit of Ramanujan

Author: Bruce C. Berndt

Publisher: American Mathematical Soc.

Published: 2006

Total Pages: 210

ISBN-13: 0821841785

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Ramanujan is recognized as one of the great number theorists of the twentieth century. Here now is the first book to provide an introduction to his work in number theory. Most of Ramanujan's work in number theory arose out of $q$-series and theta functions. This book provides an introduction to these two important subjects and to some of the topics in number theory that are inextricably intertwined with them, including the theory of partitions, sums of squares and triangular numbers, and the Ramanujan tau function. The majority of the results discussed here are originally due to Ramanujan or were rediscovered by him. Ramanujan did not leave us proofs of the thousands of theorems he recorded in his notebooks, and so it cannot be claimed that many of the proofs given in this book are those found by Ramanujan. However, they are all in the spirit of his mathematics. The subjects examined in this book have a rich history dating back to Euler and Jacobi, and they continue to be focal points of contemporary mathematical research. Therefore, at the end of each of the seven chapters, Berndt discusses the results established in the chapter and places them in both historical and contemporary contexts. The book is suitable for advanced undergraduates and beginning graduate students interested in number theory.

Ramanujan's Lost Notebook
Ramanujan's Lost Notebook

Author: George E. Andrews

Publisher: Springer Science & Business Media

Published: 2005-05-06

Total Pages: 460

ISBN-13: 9780387255293

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In the library at Trinity College, Cambridge in 1976, George Andrews of Pennsylvania State University discovered a sheaf of pages in the handwriting of Srinivasa Ramanujan. Soon designated as "Ramanujan’s Lost Notebook," it contains considerable material on mock theta functions and undoubtedly dates from the last year of Ramanujan’s life. In this book, the notebook is presented with additional material and expert commentary.

Basic Hypergeometric Series and Applications
Basic Hypergeometric Series and Applications

Author: Nathan Jacob Fine

Publisher: American Mathematical Soc.

Published: 1988

Total Pages: 142

ISBN-13: 0821815245

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The theory of partitions, founded by Euler, has led in a natural way to the idea of basic hypergeometric series, also known as Eulerian series. These series were first studied systematically by Heine, but many early results are attributed to Euler, Gauss, and Jacobi. This book provides a simple approach to basic hypergeometric series.

Partitions, q-Series, and Modular Forms
Partitions, q-Series, and Modular Forms

Author: Krishnaswami Alladi

Publisher: Springer Science & Business Media

Published: 2011-11-01

Total Pages: 233

ISBN-13: 1461400287

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Partitions, q-Series, and Modular Forms contains a collection of research and survey papers that grew out of a Conference on Partitions, q-Series and Modular Forms at the University of Florida, Gainesville in March 2008. It will be of interest to researchers and graduate students that would like to learn of recent developments in the theory of q-series and modular and how it relates to number theory, combinatorics and special functions.

The Theory of Jacobi Forms
The Theory of Jacobi Forms

Author: Martin Eichler

Publisher: Springer Science & Business Media

Published: 2013-12-14

Total Pages: 156

ISBN-13: 1468491628

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The functions studied in this monogra9h are a cross between elliptic functions and modular forms in one variable. Specifically, we define a Jacobi form on SL (~) to be a holomorphic function 2 (JC = upper half-plane) satisfying the t\-10 transformation eouations 2Tiimcz· k CT +d a-r +b z) (1) ((cT+d) e cp(T, z) cp CT +d ' CT +d (2) rjl(T, z+h+]l) and having a Four·ier expansion of the form 00 e2Tii(nT +rz) (3) cp(T, z) 2: c(n, r) 2:: rE~ n=O 2 r ~ 4nm Here k and m are natural numbers, called the weight and index of rp, respectively. Note that th e function cp (T, 0) is an ordinary modular formofweight k, whileforfixed T thefunction z-+rjl( -r, z) isa function of the type normally used to embed the elliptic curve ~/~T + ~ into a projective space. If m= 0, then cp is independent of z and the definition reduces to the usual notion of modular forms in one variable. We give three other examples of situations where functions satisfying (1)-(3) arise classically: 1. Theta series. Let Q: ~-+ ~ be a positive definite integer valued quadratic form and B the associated bilinear form.

Chapter 16 of Ramanujan's Second Notebook: Theta-Functions and $q$-Series
Chapter 16 of Ramanujan's Second Notebook: Theta-Functions and $q$-Series

Author: Chandrashekar Adiga

Publisher: American Mathematical Soc.

Published: 1985

Total Pages: 99

ISBN-13: 0821823167

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The first part of Chapter 16 in Ramanujan's second notebook is devoted to q-series. Several of the results obtained by Ramanujan are classical, but many are new. In particular, certain elegant q-continued fraction expansions have not appeared heretofore in print. In the remainder of this chapter, Ramanujan develops the theory of the classical theta-functions in a manner different from his nineteenth century predecessors such as Jacobi. Although many of Ramanujan's discoveries about theta-functions are well-known, several new results are also to be found.

Theta Functions, Elliptic Functions and [pi]
Theta Functions, Elliptic Functions and [pi]

Author: Heng Huat Chan

Publisher: de Gruyter

Published: 2020

Total Pages: 0

ISBN-13: 9783110540710

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This book presents several results on elliptic functions and Pi, using Jacobi's triple product identity as a tool to show suprising connections between different topics within number theory such as theta functions, Eisenstein series, the Dedekind delta function, and Ramanujan's work on Pi. The included exercises make it ideal for both classroom use and self-study.

Theta Function In The Light Of Ramanujan
Theta Function In The Light Of Ramanujan

Author: Mohamed Nishad Maniparambath

Publisher: LAP Lambert Academic Publishing

Published: 2014

Total Pages: 0

ISBN-13: 9783659513480

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This book is an introductory text on Theta function. It describes Classical Theta function, Ramanujan's Theta function and Cubic Theta function and Their developments and interconnection. This is designed for graduates and researchers as a start up material. The topics dealt with it includes Theta function as a solution of Heat conduction equation, elementary properties of Ramanujan's Theta function, One variable, Two variable, Three variable cubic theta functions and identities involving them.