On modular symbols and the cohomology of Hecke triangle surfaces
@article{Wiese2005OnMS, title={On modular symbols and the cohomology of Hecke triangle surfaces}, author={Gabor Wiese}, journal={International Journal of Number Theory}, year={2005}, volume={05}, pages={89-108} }
The aim of this article is to give a concise algebraic treatment of the modular symbols formalism, generalized from modular curves to Hecke triangle surfaces. A sketch is included of how the modular symbols formalism gives rise to the standard algorithms for the computation of holomorphic modular forms. Precise and explicit connections are established to the cohomology of Hecke triangle surfaces and group cohomology. A general commutative ring is used as coefficient ring in view of applications…
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References
SHOWING 1-10 OF 39 REFERENCES
On the faithfulness of the parabolic cohomology of modular curves as a Hecke module
- Mathematics
- 2005
In this article we prove conditions under which a certain parabolic group cohomology space over a finite field F is a faithful module for the Hecke algebra of Katz modular forms over an algebraic…
SHIMURA INTEGRALS OF CUSP FORMS
- Mathematics
- 1981
This paper studies integrals of the form on the upper half-plane, where is a rational number, is integral, and is a cusp form of weight with respect to some modular group . The main result is that if…
PARABOLIC POINTS AND ZETA-FUNCTIONS OF MODULAR CURVES
- Mathematics
- 1972
In this paper we obtain explicit formulas for the values at the center of the critical strip of Dirichlet series connected with weight 2 parabolic forms of the group Γ0(N). In particular, these…
An introduction to homological algebra
- Mathematics
- 1960
Preface 1. Generalities concerning modules 2. Tensor products and groups of homomorphisms 3. Categories and functors 4. Homology functors 5. Projective and injective modules 6. Derived functors 7.…
On Artin's conjecture for odd 2-dimensional representations
- Mathematics
- 1994
On the experimental verification of the artin conjecture for 2-dimensional odd galois representations over Q liftings of 2-dimensional projective galois representations over Q.- A table of…
Rational Period Functions and Parabolic Cohomology
- Mathematics
- 1996
Abstract In [K], M. Knopp defined a generalization of Eichler cohomology by considering rational functions as possible periods for the action, by way of the usual slash operator, of a Fuchsian group…
Modular Forms of Weight One Over Finite Fields
- Mathematics
- 2005
The thesis deals with certain aspects of Katz modular forms over finite fields, in particular of weight one. A special case of Serre's conjecture is proved and the faithfulness of the Hecke module of…
Explicit approaches to modular abelian varieties
- Mathematics
- 2000
Explicit approaches to modular abelian varieties by William Arthur Stein Doctor of Philosophy in Mathematics University of California at Berkeley Professor Hendrik Lenstra, Chair I investigate the…
Algorithms for Modular Elliptic Curves
- Computer Science, Mathematics
- 1992
This book presents a thorough treatment of many algorithms concerning the arithmetic of elliptic curves with remarks on computer implementation and an extensive set of tables giving the results of the author's implementations of the algorithms.
Modular forms, a computational approach
- Mathematics
- 2007
Modular forms Modular forms of level $1$ Modular forms of weight $2$ Dirichlet characters Eisenstein series and Bernoulli numbers Dimension formulas Linear algebra General modular symbols Computing…