Eigenvalues of the Laplacian for Hecke Triangle Groups

Eigenvalues of the Laplacian for Hecke Triangle Groups PDF Author: Dennis A. Hejhal
Publisher: American Mathematical Soc.
ISBN: 0821825291
Category : Automorphic functions
Languages : en
Pages : 177

Get Book Here

Book Description
Paper I is concerned with computational aspects of the Selberg trace formalism, considering the usual type of eigenfunction and including an analysis of pseudo cusp forms and their residual effects. Paper II examines the modular group PSL (2, [bold]Z), as such groups have both a discrete and continuous spectrum. This paper only examines the discrete side of the spectrum.

Eigenvalues of the Laplacian for Hecke Triangle Groups

Eigenvalues of the Laplacian for Hecke Triangle Groups PDF Author: Dennis A. Hejhal
Publisher: American Mathematical Soc.
ISBN: 0821825291
Category : Automorphic functions
Languages : en
Pages : 177

Get Book Here

Book Description
Paper I is concerned with computational aspects of the Selberg trace formalism, considering the usual type of eigenfunction and including an analysis of pseudo cusp forms and their residual effects. Paper II examines the modular group PSL (2, [bold]Z), as such groups have both a discrete and continuous spectrum. This paper only examines the discrete side of the spectrum.

Emerging Applications of Number Theory

Emerging Applications of Number Theory PDF Author: Dennis A. Hejhal
Publisher: Springer Science & Business Media
ISBN: 1461215447
Category : Mathematics
Languages : en
Pages : 693

Get Book Here

Book Description
Most people tend to view number theory as the very paradigm of pure mathematics. With the advent of computers, however, number theory has been finding an increasing number of applications in practical settings, such as in cryptography, random number generation, coding theory, and even concert hall acoustics. Yet other applications are still emerging - providing number theorists with some major new areas of opportunity. The 1996 IMA summer program on Emerging Applications of Number Theory was aimed at stimulating further work with some of these newest (and most attractive) applications. Concentration was on number theory's recent links with: (a) wave phenomena in quantum mechanics (more specifically, quantum chaos); and (b) graph theory (especially expander graphs and related spectral theory). This volume contains the contributed papers from that meeting and will be of interest to anyone intrigued by novel applications of modern number-theoretical techniques.

Eigenfunctions of Transfer Operators and Automorphic Forms for Hecke Triangle Groups of Infinite Covolume

Eigenfunctions of Transfer Operators and Automorphic Forms for Hecke Triangle Groups of Infinite Covolume PDF Author: Roelof Bruggeman
Publisher: American Mathematical Society
ISBN: 1470465450
Category : Mathematics
Languages : en
Pages : 186

Get Book Here

Book Description
View the abstract.

Hyperbolic Geometry and Applications in Quantum Chaos and Cosmology

Hyperbolic Geometry and Applications in Quantum Chaos and Cosmology PDF Author: Jens Bölte
Publisher: Cambridge University Press
ISBN: 1107610494
Category : Mathematics
Languages : en
Pages : 285

Get Book Here

Book Description
Leading experts introduce this classical subject with exciting new applications in theoretical physics.

Computations with Modular Forms

Computations with Modular Forms PDF Author: Gebhard Böckle
Publisher: Springer Science & Business Media
ISBN: 3319038478
Category : Mathematics
Languages : en
Pages : 377

Get Book Here

Book Description
This volume contains original research articles, survey articles and lecture notes related to the Computations with Modular Forms 2011 Summer School and Conference, held at the University of Heidelberg. A key theme of the Conference and Summer School was the interplay between theory, algorithms and experiment. The 14 papers offer readers both, instructional courses on the latest algorithms for computing modular and automorphic forms, as well as original research articles reporting on the latest developments in the field. The three Summer School lectures provide an introduction to modern algorithms together with some theoretical background for computations of and with modular forms, including computing cohomology of arithmetic groups, algebraic automorphic forms, and overconvergent modular symbols. The 11 Conference papers cover a wide range of themes related to computations with modular forms, including lattice methods for algebraic modular forms on classical groups, a generalization of the Maeda conjecture, an efficient algorithm for special values of p-adic Rankin triple product L-functions, arithmetic aspects and experimental data of Bianchi groups, a theoretical study of the real Jacobian of modular curves, results on computing weight one modular forms, and more.

LuCaNT: LMFDB, Computation, and Number Theory

LuCaNT: LMFDB, Computation, and Number Theory PDF Author: John Cremona
Publisher: American Mathematical Soc.
ISBN: 1470472600
Category : Mathematics
Languages : en
Pages : 386

Get Book Here

Book Description
This book will be published Open Access with a Creative Commons Attribution 4.0 International License (CC BY 4.0). The eBook can be downloaded electronically for free. This volume contains the proceedings of the LuCaNT (LMFDB, Computation, and Number Theory) conference held from July 10–14, 2023, at the Institute for Computational and Experimental Research in Mathematics (ICERM), Providence, Rhode Island and affiliated with Brown University. This conference provided an opportunity for researchers, scholars, and practitioners to exchange ideas, share advances, and collaborate in the fields of computation, mathematical databases, number theory, and arithmetic geometry. The papers that appear in this volume record recent advances in these areas, with special focus on the LMFDB (the L-Functions and Modular Forms Database), an online resource for mathematical objects arising in the Langlands program and the connections between them.

Semistability of Amalgamated Products and HNN-Extensions

Semistability of Amalgamated Products and HNN-Extensions PDF Author: Michael L. Mihalik
Publisher: American Mathematical Soc.
ISBN: 0821825313
Category : Free products
Languages : en
Pages : 98

Get Book Here

Book Description
In this work, the authors show that amalgamated products and HNN-extensions of finitely presented semistable at infinity groups are also semistable at infinity. A major step toward determining whether all finitely presented groups are semistable at infinity, this result easily generalizes to finite graphs of groups. The theory of group actions on trees and techniques derived from the proof of Dunwoody's accessibility theorem are key ingredients in this work.

Degree Theory for Equivariant Maps, the General $S^1$-Action

Degree Theory for Equivariant Maps, the General $S^1$-Action PDF Author: Jorge Ize
Publisher: American Mathematical Soc.
ISBN: 0821825429
Category : Mathematics
Languages : en
Pages : 194

Get Book Here

Book Description
In this paper, we consider general [italic]S1-actions, which may differ on the domain and on the range, with isotropy subspaces with one dimension more on the domain. In the special case of self-maps the [italic]S1-degree is given by the usual degree of the invariant part, while for one parameter [italic]S1-maps one has an integer for each isotropy subgroup different from [italic]S1. In particular we recover all the [italic]S1-degrees introduced in special cases by other authors and we are also able to interpret period doubling results on the basis of our [italic]S1-degree. The applications concern essentially periodic solutions of ordinary differential equations.

Associated Graded Algebra of a Gorenstein Artin Algebra

Associated Graded Algebra of a Gorenstein Artin Algebra PDF Author: Anthony Ayers Iarrobino
Publisher: American Mathematical Soc.
ISBN: 0821825763
Category : Mathematics
Languages : en
Pages : 128

Get Book Here

Book Description
In 1904, Macaulay described the Hilbert function of the intersection of two plane curve branches: It is the sum of a sequence of functions of simple form. This monograph describes the structure of the tangent cone of the intersection underlying this symmetry. Iarrobino generalizes Macaulay's result beyond complete intersections in two variables to Gorenstein Artin algebras in an arbitrary number of variables. He shows that the tangent cone of a Gorenstein singularity contains a sequence of ideals whose successive quotients are reflexive modules. Applications are given to determining the multiplicity and orders of generators of Gorenstein ideals and to problems of deforming singular mapping germs. Also included are a survey of results concerning the Hilbert function of Gorenstein Artin algebras and an extensive bibliography.

Symplectic Cobordism and the Computation of Stable Stems

Symplectic Cobordism and the Computation of Stable Stems PDF Author: Stanley O. Kochman
Publisher: American Mathematical Soc.
ISBN: 0821825585
Category : Mathematics
Languages : en
Pages : 105

Get Book Here

Book Description
This memoir consists of two independent papers. In the first, "The symplectic cobordism ring III" the classical Adams spectral sequence is used to study the symplectic cobordism ring [capital Greek]Omega[superscript]* [over] [subscript italic capital]S[subscript italic]p. In the second, "The symplectic Adams Novikov spectral sequence for spheres" we analyze the symplectic Adams-Novikov spectral sequence converging to the stable homotopy groups of spheres.