Eigenvalues Of The Laplacian For Hecke Triangle Groups
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| Author | : Dennis A. Hejhal |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 177 |
| Release | : 1992 |
| Genre | : Automorphic functions |
| ISBN | : 0821825291 |
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.
| Author | : Dennis A. Hejhal |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 693 |
| Release | : 2012-12-06 |
| Genre | : Mathematics |
| ISBN | : 1461215447 |
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.
| Author | : Gebhard Böckle |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 377 |
| Release | : 2014-01-23 |
| Genre | : Mathematics |
| ISBN | : 3319038478 |
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.
| Author | : Jens Bölte |
| Publisher | : Cambridge University Press |
| Total Pages | : 285 |
| Release | : 2012 |
| Genre | : Mathematics |
| ISBN | : 1107610494 |
Leading experts introduce this classical subject with exciting new applications in theoretical physics.
| Author | : Audrey Terras |
| Publisher | : Cambridge University Press |
| Total Pages | : 456 |
| Release | : 1999-03-28 |
| Genre | : Mathematics |
| ISBN | : 9780521457187 |
It examines the theory of finite groups in a manner that is both accessible to the beginner and suitable for graduate research.
| Author | : Francisco González-Acuña |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 71 |
| Release | : 1992 |
| Genre | : Mathematics |
| ISBN | : 0821825348 |
This paper deals with the two broad questions of how 3-manifold groups imbed in one another and how such imbeddings relate to any corresponding [lowercase Greek]Pi1-injective maps. In particular, we are interested in 1) determining which 3-manifold groups are no cohopfian, that is, which 3-manifold groups imbed properly in themselves, 2) determining the knot subgroups of a knot group, and 3) determining when surgery on a knot [italic]K yields a lens (or "lens-like") space and the relationship of such a surgery to the knot-subgroup structure of [lowercase Greek]Pi1([italic]S3 - [italic]K). Our work requires the formulation of a deformation theorem for [lowercase Greek]Pi1-injective maps between certain kinds of Haken manifolds and the development of some algebraic tools.
| Author | : Percy Deift |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 114 |
| Release | : 1992 |
| Genre | : Mathematics |
| ISBN | : 0821825402 |
The authors show how to interpret recent results of Moser and Veselov on discrete versions of a class of classical integrable systems, in terms of a loop group framework. In this framework the discrete systems appear as time-one maps of integrable Hamiltonian flows. Earlier results of Moser on isospectral deformations of rank 2 extensions of a fixed matrix, can also be incorporated into their scheme.
| Author | : Chris Jantzen |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 130 |
| Release | : 1993 |
| Genre | : Mathematics |
| ISBN | : 0821825496 |
This paper is concerned with induced representations for $p$-adic groups. In particular, Jantzen examines the question of reducibility in the case where the inducing subgroup is a maximal parabolic subgroup of $Sp_{2n (F)$ and the inducing representation is one-dimensional. Two different approaches to this problem are used. The first, based on the work of Casselman and of Gustafson, reduces the problem to the corresponding question about an associated finite-dimensional representation of a certain Hecke algebra. The second approach is based on a technique of Tadi\'c and involves an analysis of Jacquet modules. This is used to obtain a more general result on induced representations, which may be used to deal with the problem when the inducing representation satisfies a regularity condition. The same basic argument is also applied in a case-by-case fashion to nonregular cases.
| Author | : Neal W. Stoltzfus |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 103 |
| Release | : 1977 |
| Genre | : Mathematics |
| ISBN | : 082182192X |
The group of concordance classes of high dimensional homotopy spheres knotted in codimension two in the standard sphere has an intricate algebraic structure which this paper unravels. The first level of invariants is given by the classical Alexander polynomial. By means of a transfer construction, the integral Seifert matrices of knots whose Alexander polynomial is a power of a fixed irreducible polynomial are related to forms with the appropriate Hermitian symmetry on torsion free modules over an order in the algebraic number field determined by the Alexander polynomial. This group is then explicitly computed in terms of standard arithmetic invariants. In the symmetric case, this computation shows there are no elements of order four with an irreducible Alexander polynomial. Furthermore, the order is not necessarily Dedekind and non-projective modules can occur. The second level of invariants is given by constructing an exact sequence relating the global concordance group to the individual pieces described above. The integral concordance group is then computed by a localization exact sequence relating it to the rational group computed by J. Levine and a group of torsion linking forms.
| Author | : Donald St. P. Richards |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 272 |
| Release | : 1992 |
| Genre | : Mathematics |
| ISBN | : 0821851594 |
This book is the first set of proceedings to be devoted entirely to the theory of hypergeometric functions defined on domains of positivity. Most of the scientific areas in which these functions are applied include analytic number theory, combinatorics, harmonic analysis, random walks, representation theory, and mathematical physics - are represented here. This volume is based largely on lectures presented at a Special Session at the AMS meeting in Tampa, Florida in March 1991, which was devoted to hypergeometric functions of matrix argument and to fostering communication among representatives of the diverse scientific areas in which these functions are utilized. Accessible to graduate students and others seeking an introduction to the state of the art in this area, this book is a suitable text for advanced graduate seminar courses for it contains many open problems.
