Products related to Operators:
-
Distributions and Operators
This textbook gives an introduction to distribution theory with emphasis on applications using functional analysis.In more advanced parts of the book, pseudodi?erential methods are introduced.Distributiontheoryhasbeen developedprimarilytodealwithpartial(and ordinary) di?erential equations in general situations.Functional analysis in, say, Hilbert spaces has powerful tools to establish operators with good m- ping properties and invertibility properties.A combination of the two allows showing solvability of suitable concrete partial di?erential equations (PDE).When partial di?erential operators are realized as operators in L (?) for 2 n anopensubset?ofR ,theycomeoutasunboundedoperators.Basiccourses infunctionalanalysisareoftenlimitedtothestudyofboundedoperators,but we here meet the necessityof treating suitable types ofunbounded operators; primarily those that are densely de?ned and closed. Moreover, the emphasis in functional analysis is often placed on selfadjoint or normal operators, for which beautiful results can be obtained by means of spectral theory, but the cases of interest in PDE include many nonselfadjoint operators, where diagonalizationbyspectraltheoryisnotveryuseful.Weincludeinthisbooka chapter on unbounded operatorsin Hilbert space (Chapter 12),where classes of convenient operators are set up, in particular the variational operators, including selfadjoint semibounded cases (e.g., the Friedrichs extension of a symmetric operator), but with a much wider scope.Whereas the functional analysis de?nition of the operators is relatively clean and simple, the interpretation to PDE is more messy and complicated.
Price: 79.99 £ | Shipping*: 0.00 £ -
The Analysis of Linear Partial Differential Operators II : Differential Operators with Constant Coefficients
This volume is an expanded version of Chapters III, IV, V and VII of my 1963 book "Linear partial differential operators".In addition there is an entirely new chapter on convolution equations, one on scattering theory, and one on methods from the theory of analytic functions of several complex variables.The latter is somewhat limited in scope though since it seems superfluous to duplicate the monographs by Ehrenpreis and by Palamodov on this subject.The reader is assumed to be familiar with distribution theory as presented in Volume I.Most topics discussed here have in fact been encountered in Volume I in special cases, which should provide the necessary motivation and background for a more systematic and precise exposition.The main technical tool in this volume is the Fourier- Laplace transformation.More powerful methods for the study of operators with variable coefficients will be developed in Volume III.However, constant coefficient theory has given the guidance for all that work.Although the field is no longer very active - perhaps because of its advanced state of development - and although it is possible to pass directly from Volume I to Volume III, the material presented here should not be neglected by the serious student who wants to gain a balanced perspective of the theory of linear partial differential equations.
Price: 49.99 £ | Shipping*: 0.00 £ -
Structure Of Hilbert Space Operators
This book exposes the internal structure of non-self-adjoint operators acting on complex separable infinite dimensional Hilbert space, by analyzing and studying the commutant of operators.A unique presentation of the theorem of Cowen-Douglas operators is given.The authors take the strongly irreducible operator as a basic model, and find complete similarity invariants of Cowen-Douglas operators by using K-theory, complex geometry and operator algebra tools.
Price: 98.00 £ | Shipping*: 0.00 £ -
Perturbation Theory for Linear Operators
In view of recent development in perturbation theory, supplementary notes and a supplementary bibliography are added at the end of the new edition.Little change has been made in the text except that the para graphs V-§ 4.5, VI-§ 4.3, and VIII-§ 1.4 have been completely rewritten, and a number of minor errors, mostly typographical, have been corrected.The author would like to thank many readers who brought the errors to his attention.Due to these changes, some theorems, lemmas, and formulas of the first edition are missing from the new edition while new ones are added.The new ones have numbers different from those attached to the old ones which they may have replaced.Despite considerable expansion, the bibliography i" not intended to be complete.Berkeley, April 1976 TosIO RATO Preface to the First Edition This book is intended to give a systematic presentation of perturba tion theory for linear operators.It is hoped that the book will be useful to students as well as to mature scientists, both in mathematics and in the physical sciences.
Price: 49.99 £ | Shipping*: 0.00 £
-
What are biology operators?
Biology operators are genetic operators used in evolutionary algorithms to simulate the process of natural selection and genetic recombination. These operators include mutation, crossover, and selection, which are used to create new individuals in the population by combining and modifying existing solutions. By applying these operators, evolutionary algorithms can search for optimal solutions to complex biological problems by mimicking the process of evolution in nature.
-
What are task operators?
Task operators are individuals or entities responsible for carrying out specific tasks within a larger operation or project. They are responsible for executing the necessary actions to achieve the desired outcome and may have specific expertise or skills related to the task at hand. Task operators play a crucial role in ensuring that the overall objectives are met and that the work is completed efficiently and effectively. They may work independently or as part of a team, depending on the nature of the task.
-
What are logical operators?
Logical operators are symbols used to connect two or more expressions in a logical statement. They are used to combine multiple conditions and determine the overall truth value of the statement. The three main logical operators are AND, OR, and NOT. The AND operator returns true only if both conditions are true, the OR operator returns true if at least one condition is true, and the NOT operator returns the opposite truth value of the condition. These operators are commonly used in programming and in mathematical logic to make decisions based on multiple conditions.
-
Are there still elevator operators?
While elevator operators were once a common profession, their role has largely been replaced by automated systems in modern buildings. However, there are still a few historic buildings or luxury establishments that may employ elevator operators for nostalgic or service-oriented reasons. Overall, the majority of elevators today are self-operated by passengers using buttons to select their desired floor.
Similar search terms for Operators:
-
Derwent Polyurethane Operators Chair DPAPOLYOPS
Our durable wipe-clean polyurethane operator chair is ideal for numerous applications, offering a spring loaded backrest mechanism, back height adjustment and a robust gas lift for easy seat height adjustment. Arms may be fitted retrospectively.
Price: 265.20 £ | Shipping*: 0.00 £ -
Hilbert Space Operators in Quantum Physics
Almost ?fteen years later, and there is little change in our motivation.Mathem- ical physics of quantum systems remains a lively subject of intrinsic interest with numerous applications, both actual and potential.Intheprefacetothe?rsteditionwehavedescribedtheoriginofthisbookrooted at the beginning in a course of lectures.With this fact in mind, we were naturally pleased to learn that the volume was used as a course text in many points of the world and we gladly accepted the o?er ofSpringer Verlag which inherited the rights from our original publisher, to consider preparation of a second edition.It was our ambition to bring the reader close to the places where real life dwells, and therefore this edition had to be more than a corrected printing.The ?eld is developing rapidly and since the ?rst edition various new subjects have appeared; as a couple of examples let us mention quantum computing or the major progress in theinvestigationofrandomSchr. odingeroperators.Thereare,however,goodsources intheliteraturewherethereadercanlearnabouttheseandothernewdevelopments.
Price: 109.99 £ | Shipping*: 0.00 £ -
Operators Chair Lumbar Fixed Arms Blu
The operators chair offers more choices than typical operator chairs with a sculptured foam seat, lumbar foam back support and multiple arm options to suit the preferences of office individuals, so you will struggle to find a more comfortable office
Price: 182.74 £ | Shipping*: 0.00 £ -
Operators Chair Lumbar Fixed Arms Blk
The operators chair offers more choices than typical operator chairs with a sculptured foam seat, lumbar foam back support and multiple arm options to suit the preferences of office individuals, so you will struggle to find a more comfortable office
Price: 182.74 £ | Shipping*: 0.00 £
-
How do you square operators?
To square an operator, you simply apply the operator to itself. For example, if you have an operator A, then squaring it would be denoted as A^2, and it would be equal to A * A. This is similar to squaring a number, where you multiply the number by itself. In the context of quantum mechanics, squaring operators is important for calculating the evolution of quantum states and understanding the behavior of physical systems.
-
What can website operators see?
Website operators can see a variety of information about their visitors, including their IP address, the pages they visit, the time they spend on each page, the device and browser they are using, and their geographic location. They can also track user interactions such as clicks, form submissions, and purchases. Additionally, website operators can use cookies and other tracking technologies to gather data about user behavior and preferences. However, it's important to note that website operators should always comply with privacy regulations and obtain user consent for collecting and using their data.
-
What are the operators in C?
Operators in C are symbols that are used to perform operations on variables and values. Some common operators in C include arithmetic operators (+, -, *, /), assignment operators (=), comparison operators (==, !=, >, <), logical operators (&&, ||, !), and bitwise operators (&, |, ^). These operators are essential for performing various calculations and comparisons in C programming.
-
Do forum operators save IP addresses?
Yes, forum operators typically save IP addresses for security and moderation purposes. IP addresses can help identify and block spammers, trolls, and other malicious users. They can also be used to track and investigate any illegal activities or violations of the forum's terms of service. However, forum operators should handle this information responsibly and ensure that users' privacy is protected.
* All prices are inclusive of VAT and, if applicable, plus shipping costs. The offer information is based on the details provided by the respective shop and is updated through automated processes. Real-time updates do not occur, so deviations can occur in individual cases.