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Author : André Unterberger
Publisher :
ISBN 13 : 9783662172988
Total Pages : 268 pages
Book Rating : 4.1/5 (729 download)
Download or read book Quantization and Non-Holomorphic Modular Forms written by André Unterberger and published by . This book was released on 2014-01-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : André Unterberger
Publisher : Springer
ISBN 13 : 3540446605
Total Pages : 251 pages
Book Rating : 4.5/5 (44 download)
Download or read book Quantization and Non-holomorphic Modular Forms written by André Unterberger and published by Springer. This book was released on 2007-05-06 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a new approach to the theory of non-holomorphic modular forms, based on ideas from quantization theory or pseudodifferential analysis. Extending the Rankin-Selberg method so as to apply it to the calculation of the Roelcke-Selberg decomposition of the product of two Eisenstein series, one lets Maass cusp-forms appear as residues of simple, Eisenstein-like, series. Other results, based on quantization theory, include a reinterpretation of the Lax-Phillips scattering theory for the automorphic wave equation, in terms of distributions on R2 automorphic with respect to the linear action of SL(2,Z).
Author : André Unterberger
Publisher : Springer Science & Business Media
ISBN 13 : 3034801661
Total Pages : 305 pages
Book Rating : 4.0/5 (348 download)
Download or read book Pseudodifferential Analysis, Automorphic Distributions in the Plane and Modular Forms written by André Unterberger and published by Springer Science & Business Media. This book was released on 2011-08-06 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pseudodifferential analysis, introduced in this book in a way adapted to the needs of number theorists, relates automorphic function theory in the hyperbolic half-plane Π to automorphic distribution theory in the plane. Spectral-theoretic questions are discussed in one or the other environment: in the latter one, the problem of decomposing automorphic functions in Π according to the spectral decomposition of the modular Laplacian gives way to the simpler one of decomposing automorphic distributions in R2 into homogeneous components. The Poincaré summation process, which consists in building automorphic distributions as series of g-transforms, for g E SL(2;Z), of some initial function, say in S(R2), is analyzed in detail. On Π, a large class of new automorphic functions or measures is built in the same way: one of its features lies in an interpretation, as a spectral density, of the restriction of the zeta function to any line within the critical strip. The book is addressed to a wide audience of advanced graduate students and researchers working in analytic number theory or pseudo-differential analysis.
Author : André Unterberger
Publisher : Springer
ISBN 13 : 3540779116
Total Pages : 127 pages
Book Rating : 4.5/5 (47 download)
Download or read book Alternative Pseudodifferential Analysis written by André Unterberger and published by Springer. This book was released on 2008-11-14 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume introduces an entirely new pseudodifferential analysis on the line, the opposition of which to the usual (Weyl-type) analysis can be said to reflect that, in representation theory, between the representations from the discrete and from the (full, non-unitary) series, or that between modular forms of the holomorphic and substitute for the usual Moyal-type brackets. This pseudodifferential analysis relies on the one-dimensional case of the recently introduced anaplectic representation and analysis, a competitor of the metaplectic representation and usual analysis. Besides researchers and graduate students interested in pseudodifferential analysis and in modular forms, the book may also appeal to analysts and physicists, for its concepts making possible the transformation of creation-annihilation operators into automorphisms, simultaneously changing the usual scalar product into an indefinite but still non-degenerate one.
Author : Frédéric Cao
Publisher : Springer Science & Business Media
ISBN 13 : 9783540004028
Total Pages : 204 pages
Book Rating : 4.0/5 (4 download)
Download or read book Geometric Curve Evolution and Image Processing written by Frédéric Cao and published by Springer Science & Business Media. This book was released on 2003-02-27 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: In image processing, "motions by curvature" provide an efficient way to smooth curves representing the boundaries of objects. In such a motion, each point of the curve moves, at any instant, with a normal velocity equal to a function of the curvature at this point. This book is a rigorous and self-contained exposition of the techniques of "motion by curvature". The approach is axiomatic and formulated in terms of geometric invariance with respect to the position of the observer. This is translated into mathematical terms, and the author develops the approach of Olver, Sapiro and Tannenbaum, which classifies all curve evolution equations. He then draws a complete parallel with another axiomatic approach using level-set methods: this leads to generalized curvature motions. Finally, novel, and very accurate, numerical schemes are proposed allowing one to compute the solution of highly degenerate evolution equations in a completely invariant way. The convergence of this scheme is also proved.
Author : André Unterberger
Publisher : Birkhäuser
ISBN 13 : 3319186574
Total Pages : 202 pages
Book Rating : 4.3/5 (191 download)
Download or read book Pseudodifferential Operators with Automorphic Symbols written by André Unterberger and published by Birkhäuser. This book was released on 2015-06-22 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main results of this book combine pseudo differential analysis with modular form theory. The methods rely for the most part on explicit spectral theory and the extended use of special functions. The starting point is a notion of modular distribution in the plane, which will be new to most readers and relates under the Radon transformation to the classical one of modular form of the non-holomorphic type. Modular forms of the holomorphic type are addressed too in a more concise way, within a general scheme dealing with quantization theory and elementary, but novel, representation-theoretic concepts.
Author : Ole E Barndorff-Nielsen
Publisher : Springer
ISBN 13 : 3540323856
Total Pages : 340 pages
Book Rating : 4.5/5 (43 download)
Download or read book Quantum Independent Increment Processes II written by Ole E Barndorff-Nielsen and published by Springer. This book was released on 2005-11-25 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second of two volumes containing the revised and completed notes of lectures given at the school "Quantum Independent Increment Processes: Structure and Applications to Physics". This school was held at the Alfried-Krupp-Wissenschaftskolleg in Greifswald in March, 2003, and supported by the Volkswagen Foundation. The school gave an introduction to current research on quantum independent increment processes aimed at graduate students and non-specialists working in classical and quantum probability, operator algebras, and mathematical physics. The present second volume contains the following lectures: "Random Walks on Finite Quantum Groups" by Uwe Franz and Rolf Gohm, "Quantum Markov Processes and Applications in Physics" by Burkhard Kümmerer, Classical and Free Infinite Divisibility and Lévy Processes" by Ole E. Barndorff-Nielsen, Steen Thorbjornsen, and "Lévy Processes on Quantum Groups and Dual Groups" by Uwe Franz.
Author : André Unterberger
Publisher : Birkhäuser
ISBN 13 : 3034879784
Total Pages : 250 pages
Book Rating : 4.0/5 (348 download)
Download or read book Automorphic Pseudodifferential Analysis and Higher Level Weyl Calculi written by André Unterberger and published by Birkhäuser. This book was released on 2012-12-06 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Award-winning monograph of the Ferran Sunyer i Balaguer Prize 2002. The subject of this book is the study of automorphic distributions, by which is meant distributions on R2 invariant under the linear action of SL(2,Z), and of the operators associated with such distributions under the Weyl rule of symbolic calculus. Researchers and postgraduates interested in pseudodifferential analyis, the theory of non-holomorphic modular forms, and symbolic calculi will benefit from the clear exposition and new results and insights.
Author : Hervé M. Pajot
Publisher : Springer
ISBN 13 : 3540360743
Total Pages : 119 pages
Book Rating : 4.5/5 (43 download)
Download or read book Analytic Capacity, Rectifiability, Menger Curvature and Cauchy Integral written by Hervé M. Pajot and published by Springer. This book was released on 2003-07-03 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a graduate course given by the author at Yale University this book deals with complex analysis (analytic capacity), geometric measure theory (rectifiable and uniformly rectifiable sets) and harmonic analysis (boundedness of singular integral operators on Ahlfors-regular sets). In particular, these notes contain a description of Peter Jones' geometric traveling salesman theorem, the proof of the equivalence between uniform rectifiability and boundedness of the Cauchy operator on Ahlfors-regular sets, the complete proofs of the Denjoy conjecture and the Vitushkin conjecture (for the latter, only the Ahlfors-regular case) and a discussion of X. Tolsa's solution of the Painlevé problem.
Author : Francis Nier
Publisher : Springer
ISBN 13 : 3540315535
Total Pages : 209 pages
Book Rating : 4.5/5 (43 download)
Download or read book Hypoelliptic Estimates and Spectral Theory for Fokker-Planck Operators and Witten Laplacians written by Francis Nier and published by Springer. This book was released on 2005-01-17 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has recently been a renewal of interest in Fokker-Planck operators, motivated by problems in statistical physics, in kinetic equations, and differential geometry. Compared to more standard problems in the spectral theory of partial differential operators, those operators are not self-adjoint and only hypoelliptic. The aim of the analysis is to give, as generally as possible, an accurate qualitative and quantitative description of the exponential return to the thermodynamical equilibrium. While exploring and improving recent results in this direction, this volume proposes a review of known techniques on: the hypoellipticity of polynomial of vector fields and its global counterpart, the global Weyl-Hörmander pseudo-differential calculus, the spectral theory of non-self-adjoint operators, the semi-classical analysis of Schrödinger-type operators, the Witten complexes, and the Morse inequalities.
Author : James Sneyd
Publisher : Springer
ISBN 13 : 3540314385
Total Pages : 202 pages
Book Rating : 4.5/5 (43 download)
Download or read book Tutorials in Mathematical Biosciences II written by James Sneyd and published by Springer. This book was released on 2005-06-13 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a series of models in the general area of cell physiology and signal transduction, with particular attention being paid to intracellular calcium dynamics, and the role played by calcium in a variety of cell types. Calcium plays a crucial role in cell physiology, and the study of its dynamics lends insight into many different cellular processes. In particular, calcium plays a central role in muscular contraction, olfactory transduction and synaptic communication, three of the topics to be addressed in detail in this book. In addition to the models, much of the underlying physiology is presented, so that readers may learn both the mathematics and the physiology, and see how the models are applied to specific biological questions. It is intended primarily as a graduate text or a research reference. It will serve as a concise and up-to-date introduction to all those who wish to learn about the state of calcium dynamics modeling, and how such models are applied to physiological questions.
Author : Peter Constantin
Publisher : Springer
ISBN 13 : 3540324542
Total Pages : 264 pages
Book Rating : 4.5/5 (43 download)
Download or read book Mathematical Foundation of Turbulent Viscous Flows written by Peter Constantin and published by Springer. This book was released on 2005-11-24 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constantin presents the Euler equations of ideal incompressible fluids and the blow-up problem for the Navier-Stokes equations of viscous fluids, describing major mathematical questions of turbulence theory. These are connected to the Caffarelli-Kohn-Nirenberg theory of singularities for the incompressible Navier-Stokes equations, explained in Gallavotti's lectures. Kazhikhov introduces the theory of strong approximation of weak limits via the method of averaging, applied to Navier-Stokes equations. Y. Meyer focuses on nonlinear evolution equations and related unexpected cancellation properties, either imposed on the initial condition, or satisfied by the solution itself, localized in space or in time variable. Ukai discusses the asymptotic analysis theory of fluid equations, the Cauchy-Kovalevskaya technique for the Boltzmann-Grad limit of the Newtonian equation, the multi-scale analysis, giving compressible and incompressible limits of the Boltzmann equation, and the analysis of their initial layers.
Author : Türker Biyikoglu
Publisher : Springer
ISBN 13 : 3540735100
Total Pages : 120 pages
Book Rating : 4.5/5 (47 download)
Download or read book Laplacian Eigenvectors of Graphs written by Türker Biyikoglu and published by Springer. This book was released on 2007-07-07 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fascinating volume investigates the structure of eigenvectors and looks at the number of their sign graphs ("nodal domains"), Perron components, and graphs with extremal properties with respect to eigenvectors. The Rayleigh quotient and rearrangement of graphs form the main methodology. Eigenvectors of graph Laplacians may seem a surprising topic for a book, but the authors show that there are subtle differences between the properties of solutions of Schrödinger equations on manifolds on the one hand, and their discrete analogs on graphs.
Author : Charles Favre
Publisher : Springer
ISBN 13 : 354044646X
Total Pages : 251 pages
Book Rating : 4.5/5 (44 download)
Download or read book The Valuative Tree written by Charles Favre and published by Springer. This book was released on 2004-08-30 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to a beautiful object, called the valuative tree and designed as a powerful tool for the study of singularities in two complex dimensions. Its intricate yet manageable structure can be analyzed by both algebraic and geometric means. Many types of singularities, including those of curves, ideals, and plurisubharmonic functions, can be encoded in terms of positive measures on the valuative tree. The construction of these measures uses a natural tree Laplace operator of independent interest.
Author : Osamu Saeki
Publisher : Springer
ISBN 13 : 3540446486
Total Pages : 154 pages
Book Rating : 4.5/5 (44 download)
Download or read book Topology of Singular Fibers of Differentiable Maps written by Osamu Saeki and published by Springer. This book was released on 2004-08-30 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume develops a thorough theory of singular fibers of generic differentiable maps. This is the first work that establishes the foundational framework of the global study of singular differentiable maps of negative codimension from the viewpoint of differential topology. The book contains not only a general theory, but also some explicit examples together with a number of very concrete applications. This is a very interesting subject in differential topology, since it shows a beautiful interplay between the usual theory of singularities of differentiable maps and the geometric topology of manifolds.
Author : Jerrold E. Marsden
Publisher : Springer
ISBN 13 : 3540724702
Total Pages : 524 pages
Book Rating : 4.5/5 (47 download)
Download or read book Hamiltonian Reduction by Stages written by Jerrold E. Marsden and published by Springer. This book was released on 2007-06-05 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a detailed account of the theory of symplectic reduction by stages, along with numerous illustrations of the theory. It gives special emphasis to group extensions, including a detailed discussion of the Euclidean group, the oscillator group, the Bott-Virasoro group and other groups of matrices. The volume also provides ample background theory on symplectic reduction and cotangent bundle reduction.
Author : Jens M. Melenk
Publisher : Springer
ISBN 13 : 354045781X
Total Pages : 326 pages
Book Rating : 4.5/5 (44 download)
Download or read book hp-Finite Element Methods for Singular Perturbations written by Jens M. Melenk and published by Springer. This book was released on 2004-10-20 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many partial differential equations arising in practice are parameter-dependent problems that are of singularly perturbed type. Prominent examples include plate and shell models for small thickness in solid mechanics, convection-diffusion problems in fluid mechanics, and equations arising in semi-conductor device modelling. Common features of these problems are layers and, in the case of non-smooth geometries, corner singularities. Mesh design principles for the efficient approximation of both features by the hp-version of the finite element method (hp-FEM) are proposed in this volume. For a class of singularly perturbed problems on polygonal domains, robust exponential convergence of the hp-FEM based on these mesh design principles is established rigorously.
