# Riemann Roch Theorem Application To Modular Forms

Modular form Wikipedia. RIEMANN SURFACES 10. Weeks 11{12: Riemann-Roch theorem and applications 10.1. Divisors. The notion of a divisor looks very simple. Let Xbe a compact Riemann surface. A divisor is an expression X x2X a xx where the coe cients a x are integers, and only a nite number of them are nonzero. The set of all divisors on Xforms an abelian group denoted, Here the trace of the identity operator is the dimension of the vector space, i.e. the dimension of the space of modular forms of a given type: a quantity traditionally calculated by means of the RiemannвЂ“Roch theorem. Applications. The trace formula has applications to arithmetic geometry [citation needed] and number theory..

### AN EXPOSITION OF THE RIEMANN ROCH THEOREM FOR

20 Riemann Roch Theorem - UH. arithmetic analogue of the Riemann-Roch theorem. This theorem is what we will call the Riemann-Roch theorem for number elds, as in the title. In the second half of the paper, we also see analysis enter the picture in an interesting way. This will lead to a new proof of the Riemann-Roch theorem вЂ¦, THE RIEMANN-ROCH THEOREM JAMES STANKEWICZ 1. Introduction The Riemann-Roch theorem is a classical result relating the zeros and poles of a function on a curve. In particular, given constraints limiting where poles and zeros can be and of what order, the Riemann-Roch theorem provides the dimension of the space of functions satisfying that condition. For instance, it tells us that on the Riemann вЂ¦.

### Riemann-Roch theorem in Holmstrom Modular Forms VU. We then state (without proof) the Riemann Roch theorem for curves, and give applications to the classi cation of nonsingular algebraic curves. Contents 1. Introduction 1 2. Divisors 2 3. Maps associated to a divisor 6 4. Di erential forms 9 5. Riemann-Roch Theorem 11 6. Applications 12 Acknowledgments 14 References 14 1. Introduction The, THE RIEMANN-ROCH THEOREM JAMES STANKEWICZ 1. Introduction The Riemann-Roch theorem is a classical result relating the zeros and poles of a function on a curve. In particular, given constraints limiting where poles and zeros can be and of what order, the Riemann-Roch theorem provides the dimension of the space of functions satisfying that condition. For instance, it tells us that on the Riemann вЂ¦.

RiemannвЂ“Roch theorem Wikipedia. The Riemann Roch theorem for compact Riemann surfaces was proved by Riemann and Roch in the 1850s. It connects the complex analysis of a compact Riemann surface with its purely topological property, viz genus in a purely algebraic setting. It has numerous applications in, the courses of modular forms, abelian varieties and complex multiplication). Chapter 1 gives a brief overview on the algebraic geometry results and tools we will need along the whole thesis. Chapter 2 introduces and develops the theory of elliptic curves, firstly as an algebraic curve over a generic field, and then focusing on the fields of complex and rational numbers, in particular for the.

### Number Theory with Applications Series on University ELLIPTIC CURVES AND MODULAR FORMS Contents. ELLIPTIC CURVES AND MODULAR FORMS HARUZO HIDA Contents 1. Curves over a п¬Ѓeld 2 1.1. Plane curves 2 1.2. Tangent space and local rings 5 1.3. Projective space 8 1.4. Projective plane curve 9 1.5. Divisors 11 1.6. The theorem of RiemannвЂ“Roch 13 1.7. Regular maps from a curve into projective space 14 2. Elliptic curves 14 2.1. AbelвЂ™s theorem Theorem 1 is proved by a method extending Doi-OhtaвЂ™s algebraic geo-metric one. To obtain an upper bound of the order of zeros of modular forms at cusps, Doi-Ohta used Riemann-RochвЂ™s theorem on modular curves over п¬Ѓnite п¬Ѓelds. However, to obtain the bound for Hilbert modular forms, we 3. RIEMANN SURFACES 10. Weeks 11{12: Riemann-Roch theorem and applications 10.1. Divisors. The notion of a divisor looks very simple. Let Xbe a compact Riemann surface. A divisor is an expression X x2X a xx where the coe cients a x are integers, and only a nite number of them are nonzero. The set of all divisors on Xforms an abelian group denoted Motivation. Originellement, il rГ©pond au problГЁme de la recherche de l'existence de fonctions mГ©romorphes sur une surface de Riemann donnГ©e, sous la contrainte de вЂ¦ The classical Riemann-Roch theorem is a fundamental result in complex analysis and algebraic geometry. In its original form, developed by Bernhard Riemann and his student Gustav Roch in the mid-19th century, the theorem provided a connection between the analytic and topological properties of compact Riemann surfaces. This connection arises from Riemann-Roch theorem for arbitrary projective morphisms of regular arithmetic varieties. As an application, we compute the main characteristic numbers of the homogenous theory, a question that was left open in . Acknowledgements. We would like to thank the following institutions where part

## Elementary Proof of Riemann-Roch for Compact Riemann Surfaces AN ARITHMETIC HILBERT-SAMUEL THEOREM FOR. THE RIEMANN-ROCH THEOREM AND SERRE DUALITY 3 locally around x. To translate this statement into mathematical rigor, we just take the direct limit over all neighborhoods of x., Theorem (Riemann-Roch for Graphs): For any configuration on any graph , It is easy to deduce (в™ ) above from this result. Riemann-Roch for Graphs also shows that there is a subtle duality present in the dollar game which is not readily apparent..

### Elementary Proof of Riemann-Roch for Compact Riemann Surfaces

nt.number theory Why are modular forms interesting. As Benjamin mentions, Serre duality plays a key role in understanding the meat of Riemann-Roch for curves. However, there are more general forms of Riemann-Roch, all of which can somehow be understood as the "equality" $$\text{topological data} = \text{algebraic data}.$$ In the case of curves, this is straightforward. By rewriting the Riemann, Motivation. Originellement, il rГ©pond au problГЁme de la recherche de l'existence de fonctions mГ©romorphes sur une surface de Riemann donnГ©e, sous la contrainte de вЂ¦.

Riemann-Roch for Graphs and Applications Matt Baker's. Geometric Modular Forms Adrian Iovita (notes by Marc Masdeu-SabatВґe) May 11, 2009 Contents 1 Review 3 2 Modular Forms (mod p) of Level 1 4 2.1 The Algebra Structure of M(F, However, in multiple sources, it has claimed that one can compute these dimensions easily using the Riemann-Roch theorem. After reading the Riemann-Roch theorem (from Otto Forster's Lectures on Riemann Surfaces) I am no closer to understanding how this is done. This probably means I haven't really understood the theorem, but could someone.

### Riemann-Roch for Graphs and Applications Matt Baker's nt.number theory Modular forms and the Riemann. arithmetic analogue of the Riemann-Roch theorem. This theorem is what we will call the Riemann-Roch theorem for number elds, as in the title. In the second half of the paper, we also see analysis enter the picture in an interesting way. This will lead to a new proof of the Riemann-Roch theorem вЂ¦, ELLIPTIC CURVES AND MODULAR FORMS HARUZO HIDA Contents 1. Curves over a п¬Ѓeld 2 1.1. Plane curves 2 1.2. Tangent space and local rings 5 1.3. Projective space 8 1.4. Projective plane curve 9 1.5. Divisors 11 1.6. The theorem of RiemannвЂ“Roch 13 1.7. Regular maps from a curve into projective space 14 2. Elliptic curves 14 2.1. AbelвЂ™s theorem.

20 Riemann Roch Theorem - UH. I am familiar with this kind of Riemann-Roch argument for projective curves over a field, where it can be found in Hartshorne in nice cases and in more general cases in Liu's book. But Katz uses it in the case that the base is $\mathbb{Z}[\frac1n]$. What kind of Riemann-Roch argument works here?, Motivation. Originellement, il rГ©pond au problГЁme de la recherche de l'existence de fonctions mГ©romorphes sur une surface de Riemann donnГ©e, sous la contrainte de вЂ¦.

### An analogue of SturmвЂ™s theorem for Hilbert modular forms. Modular Forms VU. VECTOR VALUED MODULAR FORMS AND THE MODULAR ORBIFOLD OF ELLIPTIC CURVES 3 Л†(T) is of п¬Ѓnite order, while Gannon (, Lemma 3.2) avoids imposing any п¬Ѓnite-ness condition via an application of the solution to the Riemann-Hilbert problem, but assumes Л†(T) diagonal. The present paper avoids imposing any п¬Ѓniteness or diago- Theorem (Riemann-Roch for Graphs): For any configuration on any graph , It is easy to deduce (в™ ) above from this result. Riemann-Roch for Graphs also shows that there is a subtle duality present in the dollar game which is not readily apparent.. In mathematics, the Hodge bundle, named after W. V. D. Hodge, appears in the study of families of curves, where it provides an invariant in the moduli theory of algebraic curves. Furthermore, it has applications to the theory of modular forms on reductive algebraic groups and string theory. of the major results that I will use to prove the Riemann-Roch theorem. Equipped with our armamentarium of mathematical tools, I will present the Riemann-Roch theorem in its entirety followed by some of its many applications to algebraic geometry. 1