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Books > Science & Mathematics > Mathematics > Geometry
In the study of the structure of substances in recent decades,
phenomena in the higher dimension was discovered that was
previously unknown. These include spontaneous zooming (scaling
processes), discovery of crystals with the absence of translational
symmetry in three-dimensional space, detection of the fractal
nature of matter, hierarchical filling of space with polytopes of
higher dimension, and the highest dimension of most molecules of
chemical compounds. This forces research to expand the formulation
of the question of constructing n-dimensional spaces, posed by
David Hilbert in 1900, and to abandon the methods of considering
the construction of spaces by geometric figures that do not take
into account the accumulated discoveries in the physics of the
structure of substances. There is a need for research that accounts
for the new paradigm of the discrete world and provides a solution
to Hilbert's 18th problem of constructing spaces of higher
dimension using congruent figures. Normal Partitions and
Hierarchical Fillings of N-Dimensional Spaces aims to consider the
construction of spaces of various dimensions from two to any finite
dimension n, taking into account the indicated conditions,
including zooming in on shapes, properties of geometric figures of
higher dimensions, which have no analogue in three-dimensional
space. This book considers the conditions of existence of polytopes
of higher dimension, clusters of chemical compounds as polytopes of
the highest dimension, higher dimensions in the theory of heredity,
the geometric structure of the product of polytopes, the products
of polytopes on clusters and molecules, parallelohedron and
stereohedron of Delaunay, parallelohedron of higher dimension and
partition of n-dimensional spaces, hierarchical filling of
n-dimensional spaces, joint normal partitions, and hierarchical
fillings of n-dimensional spaces. In addition, it pays considerable
attention to biological problems. This book is a valuable reference
tool for practitioners, stakeholders, researchers, academicians,
and students who are interested in learning more about the latest
research on normal partitions and hierarchical fillings of
n-dimensional spaces.
Classical Deformation Theory is used for determining the
completions of the local rings of an eventual moduli space. When a
moduli variety exists, a main result in the book is that the local
ring in a closed point can be explicitly computed as an
algebraization of the pro-representing hull (therefore, called the
local formal moduli) of the deformation functor for the
corresponding closed point.The book gives explicit computational
methods and includes the most necessary prerequisites. It focuses
on the meaning and the place of deformation theory, resulting in a
complete theory applicable to moduli theory. It answers the
question 'why moduli theory' and it give examples in mathematical
physics by looking at the universe as a moduli of molecules.
Thereby giving a meaning to most noncommutative theories.The book
contains the first explicit definition of a noncommutative scheme,
covered by not necessarily commutative rings. This definition does
not contradict any of the previous abstract definitions of
noncommutative algebraic geometry, but rather gives interesting
relations to other theories which is left for further
investigation.
Strengthen your trigonometry skills and grades with this powerful
and simple tool for reviewing and referencing the most important
core concepts. Quickly find that answer you need in 6 laminated
pages rather than flipping through a large book. Used in the fields
of engineering, medical imaging, geography, land surveying, and
video game development, to name a few, you may find that
trigonometry is here to stay in your career life. Keep this tool by
your side and through it all for that extra memory jolt when you
need it. Suggested uses: Quick Reference -- instead of digging into
a large book to find a core answer you need while studying, use the
guide to reinforce quickly and repeatedly; Memory -- refreshing
your memory repeatedly is a foundation of studying, have the core
labs handy so you can focus on the larger picture.
One-Cocycles and Knot Invariants is about classical knots, i.e.,
smooth oriented knots in 3-space. It introduces discrete
combinatorial analysis in knot theory in order to solve a global
tetrahedron equation. This new technique is then used to construct
combinatorial 1-cocycles in a certain moduli space of knot
diagrams. The construction of the moduli space makes use of the
meridian and the longitude of the knot. The combinatorial
1-cocycles are therefore lifts of the well-known Conway polynomial
of knots, and they can be calculated in polynomial time. The
1-cocycles can distinguish loops consisting of knot diagrams in the
moduli space up to homology. They give knot invariants when they
are evaluated on canonical loops in the connected components of the
moduli space. They are a first candidate for numerical knot
invariants which can perhaps distinguish the orientation of knots.
In this volume, the authors present a collection of surveys on
various aspects of the theory of bifurcations of differentiable
dynamical systems and related topics. By selecting these subjects,
they focus on those developments from which research will be active
in the coming years. The surveys are intended to educate the reader
on the recent literature on the following subjects: transversality
and generic properties like the various forms of the so-called
Kupka-Smale theorem, the Closing Lemma and generic local
bifurcations of functions (so-called catastrophe theory) and
generic local bifurcations in 1-parameter families of dynamical
systems, and notions of structural stability and moduli.
Over the last number of years powerful new methods in analysis and
topology have led to the development of the modern global theory of
symplectic topology, including several striking and important
results. The first edition of Introduction to Symplectic Topology
was published in 1995. The book was the first comprehensive
introduction to the subject and became a key text in the area. A
significantly revised second edition was published in 1998
introducing new sections and updates on the fast-developing area.
This new third edition includes updates and new material to bring
the book right up-to-date.
Theory and Computation of Tensors: Multi-Dimensional Arrays
investigates theories and computations of tensors to broaden
perspectives on matrices. Data in the Big Data Era is not only
growing larger but also becoming much more complicated. Tensors
(multi-dimensional arrays) arise naturally from many engineering or
scientific disciplines because they can represent multi-relational
data or nonlinear relationships.
Fractal Functions, Fractal Surfaces, and Wavelets, Second Edition,
is the first systematic exposition of the theory of local iterated
function systems, local fractal functions and fractal surfaces, and
their connections to wavelets and wavelet sets. The book is based
on Massopust's work on and contributions to the theory of fractal
interpolation, and the author uses a number of tools-including
analysis, topology, algebra, and probability theory-to introduce
readers to this exciting subject. Though much of the material
presented in this book is relatively current (developed in the past
decades by the author and his colleagues) and fairly specialized,
an informative background is provided for those entering the field.
With its coherent and comprehensive presentation of the theory of
univariate and multivariate fractal interpolation, this book will
appeal to mathematicians as well as to applied scientists in the
fields of physics, engineering, biomathematics, and computer
science. In this second edition, Massopust includes pertinent
application examples, further discusses local IFS and new fractal
interpolation or fractal data, further develops the connections to
wavelets and wavelet sets, and deepens and extends the pedagogical
content.
Geometry with Trigonometry Second Edition is a second course in
plane Euclidean geometry, second in the sense that many of its
basic concepts will have been dealt with at school, less precisely.
It gets underway with a large section of pure geometry in Chapters
2 to 5 inclusive, in which many familiar results are efficiently
proved, although the logical frame work is not traditional. In
Chapter 6 there is a convenient introduction of coordinate geometry
in which the only use of angles is to handle the perpendicularity
or parallelism of lines. Cartesian equations and parametric
equations of a line are developed and there are several
applications. In Chapter 7 basic properties of circles are
developed, the mid-line of an angle-support, and sensed distances.
In the short Chaper 8 there is a treatment of translations, axial
symmetries and more generally isometries. In Chapter 9 trigonometry
is dealt with in an original way which e.g. allows concepts such as
clockwise and anticlockwise to be handled in a way which is not
purely visual. By the stage of Chapter 9 we have a context in which
calculus can be developed. In Chapter 10 the use of complex numbers
as coordinates is introduced and the great conveniences this
notation allows are systematically exploited. Many and varied
topics are dealt with , including sensed angles, sensed area of a
triangle, angles between lines as opposed to angles between
co-initial half-lines (duo-angles). In Chapter 11 various
convenient methods of proving geometrical results are established,
position vectors, areal coordinates, an original concept mobile
coordinates. In Chapter 12 trigonometric functions in the context
of calculus are treated. New to this edition: The second edition
has been comprehensively revised over three years Errors have been
corrected and some proofs marginally improved The substantial
difference is that Chapter 11 has been significantly extended,
particularly the role of mobile coordinates, and a more thorough
account of the material is given
MESH ist ein mathematisches Video ber vielfl chige Netzwerke und
ihre Rolle in der Geometrie, der Numerik und der Computergraphik.
Der unter Anwendung der neuesten Technologie vollst ndig
computergenierte Film spannt einen Bogen von der antiken
griechischen Mathematik zum Gebiet der heutigen geometrischen
Modellierung. MESH hat zahlreiche wissenschaftliche Preise weltweit
gewonnen. Die Autoren sind Konrad Polthier, ein Professor der
Mathematik, und Beau Janzen, ein professioneller Filmdirektor.
Der Film ist ein ausgezeichnetes Lehrmittel f r Kurse in
Geometrie, Visualisierung, wissenschaftlichem Rechnen und
geometrischer Modellierung an Universit ten, Zentren f r
wissenschaftliches Rechnen, kann jedoch auch an Schulen genutzt
werden.
In the series of volumes which together will constitute the
"Handbook of Differential Geometry" we try to give a rather
complete survey of the field of differential geometry. The
different chapters will both deal with the basic material of
differential geometry and with research results (old and recent).
All chapters are written by experts in the area and contain a large
bibliography. In this second volume a wide range of areas in the
very broad field of differential geometry is discussed, as there
are Riemannian geometry, Lorentzian geometry, Finsler geometry,
symplectic geometry, contact geometry, complex geometry, Lagrange
geometry and the geometry of foliations. Although this does not
cover the whole of differential geometry, the reader will be
provided with an overview of some its most important areas.
. Written by experts and covering recent research
. Extensive bibliography
. Dealing with a diverse range of areas
. Starting from the basics
Offering a concise collection of MatLab programs and exercises to
accompany a third semester course in multivariable calculus, "A
MatLab Companion for Multivariable Calculus" introduces simple
numerical procedures such as numerical differentiation, numerical
integration and Newton's method in several variables, thereby
allowing students to tackle realistic problems. The many examples
show students how to use MatLab effectively and easily in many
contexts. Numerous exercises in mathematics and applications areas
are presented, graded from routine to more demanding projects
requiring some programming. Matlab M-files are provided on the
Harcourt/Academic Press web site at http:
//www.harcourt-ap.com/matlab.html.
* Computer-oriented material that complements the essential topics
in multivariable calculus
* Main ideas presented with examples of computations and graphics
displays using MATLAB
* Numerous examples of short code in the text, which can be
modified for use with the exercises
* MATLAB files are used to implement graphics displays and contain
a collection of mfiles which can serve as demos
This monograph provides a coherent development of operads, infinity
operads, and monoidal categories, equipped with equivariant
structures encoded by an action operad. A group operad is a planar
operad with an action operad equivariant structure. In the first
three parts of this monograph, we establish a foundation for group
operads and for their higher coherent analogues called infinity
group operads. Examples include planar, symmetric, braided, ribbon,
and cactus operads, and their infinity analogues. For example, with
the tools developed here, we observe that the coherent ribbon nerve
of the universal cover of the framed little 2-disc operad is an
infinity ribbon operad.In Part 4 we define general monoidal
categories equipped with an action operad equivariant structure and
provide a unifying treatment of coherence and strictification for
them. Examples of such monoidal categories include symmetric,
braided, ribbon, and coboundary monoidal categories, which
naturally arise in the representation theory of quantum groups and
of coboundary Hopf algebras and in the theory of crystals of finite
dimensional complex reductive Lie algebras.
The book presents a comprehensive overview of various aspects of
three-dimensional geometry that can be experienced on a daily
basis. By covering the wide range of topics - from the psychology
of spatial perception to the principles of 3D modelling and
printing, from the invention of perspective by Renaissance artists
to the art of Origami, from polyhedral shapes to the theory of
knots, from patterns in space to the problem of optimal packing,
and from the problems of cartography to the geometry of solar and
lunar eclipses - this book provides deep insight into phenomena
related to the geometry of space and exposes incredible nuances
that can enrich our lives.The book is aimed at the general
readership and provides more than 420 color illustrations that
support the explanations and replace formal mathematical arguments
with clear graphical representations.
The book presents a comprehensive overview of various aspects of
three-dimensional geometry that can be experienced on a daily
basis. By covering the wide range of topics - from the psychology
of spatial perception to the principles of 3D modelling and
printing, from the invention of perspective by Renaissance artists
to the art of Origami, from polyhedral shapes to the theory of
knots, from patterns in space to the problem of optimal packing,
and from the problems of cartography to the geometry of solar and
lunar eclipses - this book provides deep insight into phenomena
related to the geometry of space and exposes incredible nuances
that can enrich our lives.The book is aimed at the general
readership and provides more than 420 color illustrations that
support the explanations and replace formal mathematical arguments
with clear graphical representations.
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