D Wagner

Itinerant Electron Magnetism: Fluctuation Effects - Nato Science Partnership Subseries: 3 D Wagner

Marc Notes: Proceedings of the NATO Advanced Research Workshop on Itinerant Electron Magnetism: Fluctuation Effects & Critical Phenomena, Moscow, Russia, September 15-19, 1997--T.p. verso.; Includes bibliographical references and indexes.; Published in cooperation with NATO Scientific Affairs Division.. Brief Description: Proceedings of the NATO Advanced Research Workshop on Itinerant Electron Magnetism: Fluctuation Effects & Critical Phenomena, Moscow, Russia, September 15-19, 1997Table of Contents: Preface. Spin Fluctuations in Itinerant Frustrated Systems; M. Shiga, H. Nakamura. Neutron Scattering and muSR Studies of Spin Fluctuations in Frustrated Itinerant Magnets; B. D. Rainford, et al. Critical Fluctuations and the Nature of the Neel Transition Near the Triple Point in Chromium Alloys; E. Fawcett, D. R. Noakes. UPd2Al3: An Analysis of the Inelastic Neutron Scattering Spectra; N. Bernhoeft, et al. Anisotropy of the Generalized Susceptibility in Mn (38% Ni) Alloy in the Magnetic Phase Transition Region; J. J. Milczarek, et al. Pseudodipolar Interaction and Antiferromagnetism of R2CuO4 Compounds (R=Pr, Nd, Sm and Eu); S. V. Maleyev, et al. Soft-Mode Spin Fluctuations in Itinerant Electron Magnets; A. Solontsov, et al. Effects of Spin Fluctuations in Transition Metals and Alloys; M. Shimizu. The Temperature Dependence of the Enhanced Paramagnetic Susceptibility at Finite Magnetic Field; E. Pamyatnykh, et al. First-Principles Study of Itinerant-Electron Magnets: Ground State and Thermal Properties; L. M. Sandratskii, et al. Molecular Dynamics Approach to Complex Magnetic Structures in Itinerant-Electron Systems; Y. Kakehashi, et al. Spin Fluctuation Theory Versus Exact Calculations; V. Barar, et al. Magnetovolume Effect and Longitudinal Spin Fluctuations in Invar Alloys; A. Z. Menshikov, et al. High Temperature Thermal Expansion of RMn2 Intermetallic Compounds with Heavy Rare Earth Elements; I. S. Dubenko, et al. Magnetoelasticity and Isotope Effect in Ferromagnets; V. M. Zverev. Spin-Flop and Metamagnetic Transitions in Itinerant Ferrimagnets; A. K. Zvezdin, et al. The Phase Diagram of the Kondo Lattice; C. Lacroix. Pressure Effect on the Magnetic Susceptibility of the YbInCu4 andGdInCu4 Compounds; I. V. Svechkarev, et al. Atomic Volume Effect on Electronic Structure and Magnetic Properties of UGa3 Compund; E. Grechnev, et al. On the Temperature Dependence of the Electrical Resistivity of Er0.55 /YY 0.45Co2; A. N. Pirogov, et al. Electrical Resistivity and Phase Transitions in FeRh Based Compounds: Influence of Spin Fluctuations; N. V. Baranov, et al. Resistivity, Magnetoresistance and Hall Effect in Co(100-x)(CuO)x(10 Author Index. Subject Index."

Contributor Bio:  North Atlantic Treaty Organization Dedication. Preface. Acknowledgments. Clifford Geometric Algebras in Multilinear Algebra and Non-Euclidean Geometries.- Geometric algebra Projective Geometries; Affine and other geometries; Affine Geometry of pseudo-euclidean space; Conformal Geometry and the Horosphere; References. Content-Based Information Retrieval by Group Theoretical Methods.- Introduction; Motivating Examples; General Concept; Fault Tolerance.- Applications, Prototypes, and Test Results; Related Work and Future Research; References.- Four Problems in Radar.-Introduction; Radar Fundamentals; Radar Waveforms; Signal Processing; Space-Time Adaptive Processing; Four Problems in Radar; Conclusions. Introduction to Generalized Classical and Quantum Signal and System Theories on Groups and Hypergroups.-Generalized classical signal/system theory on hypergroups; Generalized quantum signal/system theory on hypergroups; Conclusion; References. Lie Groups and Lie Algebras in Robotics.- Introduction -- Rigid Body Motions; Lie Groups; Finite Screw Motions; Mechanical Joints; Invisible Motion and Gripping; Forward Kinematics; Lie Algebra; The Adjoint Representation; The Exponential Map Derivatives of Exponentials; Jacobians; Concluding Remarks; References. Quantum/Classical Interface: a Geometric Approach from the Classical Side.- Introduction Paravector Space as Spacetime; Eigenspinors; Spin; Dirac Equation; Bell's Theorem; Qubits and Entanglement; Conclusions; References. PONS, Reed-Muller Codes, and Group Algebras.- Introduction; Analytic Theory of One-Dimensional PONS (Welti); Shapiro Sequences, Reed-Muller Codes, and Functional Equations; Group Algebras; Reformulation of Classical PONS; Group Algebra of Classical PONS; GroupAlgebra Convolution; Splitting Sequences; Historical Appendix on PONS; References. Clifford Algebras as a Unified Language.- Introduction; Clifford algebras as models of physical spaces; Clifford Algebras as Models of Perceptual Multicolor Spaces; Hypercomplex-Valued invariants of nD multicolor images; Conclusions; Acknowledgments; References. Recent Progress and Applications in Group FFTs.-Introduction; Finite group FFTs; FFTs for compact groups; Noncompact groups; References. Group Filters and Image Processing.- Introduction: Classical Digital Signal Processing; Abelian Group DSP; Nonabelian Groups; Examples; Group Transforms; Group Filters; Line-like Images; Acknowledgments; References. A Geometric Algebra Approach to Some Problems of Robot Vision.- Introduction; Local Analysis of Multi-dimensional Signals; Knowledge Based Neural Computing; Acknowledgments; References. Group Theory in Radar and Signal Processing.- Introduction; How a Radar Works; Representations; Representations and Radar; Ambiguity Functions; The Wide Band Case; References. Geometry of Paravector Space with Applications to Relativistic Physics.- Clifford Algebras in Physics; Paravector Space as Spacetime; Interpretation; Eigenspinors; Maxwell's Equation; Conclusions; References. A Unified Approach to Fourier-Clifford-Prometheus Transforms- Introduction; New construction of classical and multiparametric Prometheus transforms; PONS associated with Abelian groups; Fast Fourier-Prometheus Transforms; Conclusions; Acknowledgments; References. Fast Color Wavelet Transforms.- Introduction; Color images; Color Wavelet-Haar-Prometheus transforms; Edge detection and compression of color images; Conclusion; Acknowledgments; References. Selected Problems; Various Authors.- Transformations of Euclidean Space and Clifford Geometric; Algebra; References; On the Distribution of Kloosterman Sums on Polynomials over Quaternions; References; Harmonic Sliding Analysis Problems; References; Spectral Analysis under Conditions of Uncertainty; A Canonical Basis for Maximal Tori of the Reductive Centrizer of a Nilpotent Element; References; 6 The Quantum Chaos Conjecture References; Four Problems in Radar; Topic Index; Author Index