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Books > Science & Mathematics > Mathematics > Applied mathematics > General
In two volumes, this book presents a detailed, systematic treatment
of electromagnetics with application to the propagation of
transient electromagnetic fields (including ultrawideband signals
and ultrashort pulses) in dispersive attenuative media. The
development in this expanded, updated, and reorganized new edition
is mathematically rigorous, progressing from classical theory to
the asymptotic description of pulsed wave fields in Debye and
Lorentz model dielectrics, Drude model conductors, and composite
model semiconductors. It will be of use to researchers as a
resource on electromagnetic radiation and wave propagation theory
with applications to ground and foliage penetrating radar, medical
imaging, communications, and safety issues associated with
ultrawideband pulsed fields. With meaningful exercises, and an
authoritative selection of topics, it can also be used as a
textbook to prepare graduate students for research. Volume 2
presents a detailed asymptotic description of plane wave pulse
propagation in dielectric, conducting, and semiconducting materials
as described by the classical Lorentz model of dielectric
resonance, the Rocard-Powles-Debye model of orientational
polarization, and the Drude model of metals. The rigorous
description of the signal velocity of a pulse in a dispersive
material is presented in connection with the question of
superluminal pulse propagation. The second edition contains new
material on the effects of spatial dispersion on precursor
formation, and pulse transmission into a dispersive half space and
into multilayered media. Volume 1 covers spectral representations
in temporally dispersive media.
The Boussinesq equation is the first model of surface waves in
shallow water that considers the nonlinearity and the dispersion
and their interaction as a reason for wave stability known as the
Boussinesq paradigm. This balance bears solitary waves that behave
like quasi-particles. At present, there are some Boussinesq-like
equations. The prevalent part of the known analytical and numerical
solutions, however, relates to the 1d case while for
multidimensional cases, almost nothing is known so far. An
exclusion is the solutions of the Kadomtsev-Petviashvili equation.
The difficulties originate from the lack of known analytic initial
conditions and the nonintegrability in the multidimensional case.
Another problem is which kind of nonlinearity will keep the
temporal stability of localized solutions. The system of coupled
nonlinear Schroedinger equations known as well as the vector
Schroedinger equation is a soliton supporting dynamical system. It
is considered as a model of light propagation in Kerr isotropic
media. Along with that, the phenomenology of the equation opens a
prospect of investigating the quasi-particle behavior of the
interacting solitons. The initial polarization of the vector
Schroedinger equation and its evolution evolves from the vector
nature of the model. The existence of exact (analytical) solutions
usually is rendered to simpler models, while for the vector
Schroedinger equation such solutions are not known. This determines
the role of the numerical schemes and approaches. The vector
Schroedinger equation is a spring-board for combining the reduced
integrability and conservation laws in a discrete level. The
experimental observation and measurement of ultrashort pulses in
waveguides is a hard job and this is the reason and stimulus to
create mathematical models for computer simulations, as well as
reliable algorithms for treating the governing equations. Along
with the nonintegrability, one more problem appears here - the
multidimensionality and necessity to split and linearize the
operators in the appropriate way.
Providing a practical introduction to state space methods as
applied to unobserved components time series models, also known as
structural time series models, this book introduces time series
analysis using state space methodology to readers who are neither
familiar with time series analysis, nor with state space methods.
The only background required in order to understand the material
presented in the book is a basic knowledge of classical linear
regression models, of which brief review is provided to refresh the
reader's knowledge. Also, a few sections assume familiarity with
matrix algebra, however, these sections may be skipped without
losing the flow of the exposition.
The book offers a step by step approach to the analysis of the
salient features in time series such as the trend, seasonal, and
irregular components. Practical problems such as forecasting and
missing values are treated in some detail. This useful book will
appeal to practitioners and researchers who use time series on a
daily basis in areas such as the social sciences, quantitative
history, biology and medicine. It also serves as an accompanying
textbook for a basic time series course in econometrics and
statistics, typically at an advanced undergraduate level or
graduate level.
This volume shares and makes accessible new research lines and
recent results in several branches of theoretical and mathematical
physics, among them Quantum Optics, Coherent States, Integrable
Systems, SUSY Quantum Mechanics, and Mathematical Methods in
Physics. In addition to a selection of the contributions presented
at the "6th International Workshop on New Challenges in Quantum
Mechanics: Integrability and Supersymmetry", held in Valladolid,
Spain, 27-30 June 2017, several high quality contributions from
other authors are also included. The conference gathered 60
participants from many countries working in different fields of
Theoretical Physics, and was dedicated to Prof. Veronique Hussin-an
internationally recognized expert in many branches of Mathematical
Physics who has been making remarkable contributions to this field
since the 1980s. The reader will find interesting reviews on the
main topics from internationally recognized experts in each field,
as well as other original contributions, all of which deal with
recent applications or discoveries in the aforementioned areas.
Classical Mechanics teaches readers how to solve physics problems;
in other words, how to put math and physics together to obtain a
numerical or algebraic result and then interpret these results
physically. These skills are important and will be needed in more
advanced science and engineering courses. However, more important
than developing problem-solving skills and physical-interpretation
skills, the main purpose of this multi-volume series is to survey
the basic concepts of classical mechanics and to provide the reader
with a solid understanding of the foundational content knowledge of
classical mechanics. Classical Mechanics: Conservation laws and
rotational motion covers the conservation of energy and the
conservation of momentum, which are crucial concepts in any physics
course. It also introduces the concepts of center-of-mass and
rotational motion.
This book revisits many of the problems encountered in introductory
quantum mechanics, focusing on computer implementations for finding
and visualizing analytical and numerical solutions. It subsequently
uses these implementations as building blocks to solve more complex
problems, such as coherent laser-driven dynamics in the Rubidium
hyperfine structure or the Rashba interaction of an electron moving
in 2D. The simulations are highlighted using the programming
language Mathematica. No prior knowledge of Mathematica is needed;
alternatives, such as Matlab, Python, or Maple, can also be used.
This book uses art photography as a point of departure for learning
about physics, while also using physics as a point of departure for
asking fundamental questions about the nature of photography as an
art. Although not a how-to manual, the topics center around
hands-on applications, sometimes illustrated by photographic
processes that are inexpensive and easily accessible to students
(including a versatile new process developed by the author, and
first described in print in this series). A central theme is the
connection between the physical interaction of light and matter on
the one hand, and the artistry of the photographic processes and
their results on the other. One half of Energy and Color focuses on
the physics of energy, power, illuminance, and intensity of light,
and how these relate to the photographic exposure, including a
detailed example that follows the emission of light from the sun
all the way through to the formation of the image in the camera.
These concepts are described in both their traditional manner, but
also using very-low sensitivity photography as an example, which
brings the physical concepts to the fore in a visible way, whereas
they are often hidden with ordinary high-speed photographic
detectors. Energy and Color also considers color in terms of the
spectrum of light, how it interacts with the subject, and how the
camera's light detector interacts with the image focused upon it.
But of equal concern is the only partially-understood and sometimes
unexpected ways in which the human eye/brain interprets this
spectral stimulus as color. The volume covers basic photographic
subjects such as shutter, aperture, ISO, metering and exposure
value, but also given their relations to the larger themes of the
book less familiar topics such as the Jones-Condit equation,
Lambertian versus isotropic reflections, reflection and response
curves, and the opponent-process model of color perception.
Although written at a beginning undergraduate level, the topics are
chosen for their role in a more general discussion of the relation
between science and art that is of interest to readers of all
backgrounds and levels of expertise.
This book demonstrates some of the ways in which Microsoft Excel
(R) may be used to solve numerical problems in the field of
physics.
This book discusses in detail the special theory of relativity
without including all the instruments of theoretical physics,
enabling readers who are not budding theoretical physicists to
develop competence in the field. An arbitrary but fixed inertial
system is chosen, where the known velocity of light is measured.
With respect to this system a moving clock loses time and a moving
length contracts. The book then presents a definition of
simultaneity for the other inertial frames without using the
velocity of light. To do so it employs the known reciprocity
principle, which in this context serves to provide a definition of
simultaneity in the other inertial frames. As a consequence, the
Lorentz transformation is deduced and the universal constancy of
light is established. With the help of a lattice model of the
special theory of relativity the book provides a deeper
understanding of the relativistic effects. Further, it discusses
the key STR experiments and formulates and solves 54 problems in
detail.
The development of man's understanding of planetary motions is the
crown jewel of Newtonian mechanics. This book offers a concise but
self-contained handbook-length treatment of this historically
important topic for students at about the third-year-level of an
undergraduate physics curriculum. After opening with a review of
Kepler's three laws of planetary motion, it proceeds to analyze the
general dynamics of "central force" orbits in spherical
coordinates, how elliptical orbits satisfy Newton's gravitational
law and how the geometry of ellipses relates to physical quantities
such as energy and momentum. Exercises are provided and derivations
are set up in such a way that readers can gain analytic practice by
filling in missing steps. A brief bibliography lists sources for
readers who wish to pursue further study on their own.
The relaxation method has enjoyed an intensive development during
many decades and this new edition of this comprehensive text
reflects in particular the main achievements in the past 20 years.
Moreover, many further improvements and extensions are included,
both in the direction of optimal control and optimal design as well
as in numerics and applications in materials science, along with an
updated treatment of the abstract parts of the theory.
Originating from the 42nd conference on Boundary Elements and other
Mesh Reduction Methods (BEM/MRM), the research presented in this
book consist of high quality papers that report on advances in
techniques that reduce or eliminate the type of meshes associated
with such methods as finite elements or finite differences. The
maturity of BEM since 1978 has resulted in a substantial number of
industrial applications which demonstrate the accuracy, robustness
and easy use of the technique. Their range still needs to be
widened, taking into account the potentialities of the Mesh
Reduction techniques in general. As design, analysis and
manufacture become more integrated the chances are that the users
will be less aware of the capabilities of the analytical techniques
that are at the core of the process. This reinforces the need to
retain expertise in certain specialised areas of numerical methods,
such as BEM/MRM, to ensure that all new tools perform
satisfactorily in the integrated process. The papers in this volume
help to expand the range of applications as well as the type of
materials in response to industrial and professional requirements.
Some of the topics include: Hybrid foundations; Meshless and mesh
reduction methods; Structural mechanics; Solid mechanics; Heat and
mass transfer; Electrical engineering and electromagnetics; Fluid
flow modelling; Damage mechanics and fracture; Dynamics and
vibrations analysis.
This book provides a concise introduction to the special theory of
relativity and the general theory of relativity. The format has
been chosen to provide the basis for a single semester course that
can take the students all the way from the foundations of special
relativity to the core results of general relativity: the Einstein
equation, and the equations of motion for particles and light in
curved spacetime. To facilitate access to the topics of special and
general relativity for science and engineering students, without
prior training in relativity or geometry, the relevant geometric
notions are also introduced.
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