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Topic: Functional calculus


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In the News (Sun 15 Nov 09)

  
  Functional calculus - Biocrawler   (Site not responding. Last check: 2007-10-19)
In mathematics, a functional calculus is a theory allowing one to apply mathematical functions to mathematical operators.
The idea of a functional calculus is to create a principled approach to this kind of overloading of the notation.
The easy case is to apply polynomial functions to a square matrix, extending what has just been discussed.
www.biocrawler.com /encyclopedia/Functional_calculus   (176 words)

  
 Search Results for Calculus
Calculus was not brought into the school syllabus in Italy as early as in many other countries and the concept of a function only brought in around 1910 after Castelnuovo's efforts.
This generalisation of the Riemann integral revolutionised the integral calculus.
These other areas include functional analysis and numerical analysis and within these topics he published papers on the theory of functions, the theory of complex variables, approximation theory in which he was particularly interested in using Bernstein polynomials, the calculus of variations, methods of finding approximate solutions to partial differential equations, and descriptive set theory.
www-groups.dcs.st-and.ac.uk /history/Search/historysearch.cgi?SUGGESTION=Calculus&CONTEXT=1   (14699 words)

  
 Continuous functional calculus - Biocrawler   (Site not responding. Last check: 2007-10-19)
In operator theory and C*-algebra theory the continuous functional calculus allows applications of continuous functions to normal elements of a associates to a normal element C*-algebra.
This implies in particular, that bounded self-adjoint operators on Hilbert spaces have a continuous functional calculus.
For the case of normal operators on a Hilbert space of more interest is the Borel functional calculus.
www.biocrawler.com /encyclopedia/Continuous_functional_calculus   (116 words)

  
 Functional Nets
Functional nets are a way to think about programs and computation which is born from a fusion of the essential ideas of functional programming and Petri nets.
That is, functional nets constitute a programming method which derives much of its simplicity and elegance from close connections to a fundamental underlying calculus.
Quite similarly, the basic execution step of a functional net is a rewriting according to some rewrite rule, which has as a precondition that all function symbols of the rule's left-hand side have matching calls.
lampwww.epfl.ch /funnel/esop2000.html   (4090 words)

  
 Amazon.com: Functional Calculus of Pseudo-Differential Boundary Problems (Progress in Mathematics (Birkhauser Boston)): ...   (Site not responding. Last check: 2007-10-19)
A secondary purposed is to give a complete treatment of the properties of the calculus of pseudodifferential boundary problems with transmission, both the first version by Boutet de Monvel (brought completely up to date in this edition) and in version containing a parameter running in an unbounded set.
In this second edition the author has extended the scope and applicability of the calculus wit original contributions and perspectives developed in the years since the first edition.
The main purpose of this work is to set up an operational calculus for operators defined from differential and pseudodifferential boundary value problems, via a resolvent construction, and to present some applications of this to evolution problems, fractional powers, index theory, spectral theory and singular perturbation problems.
www.amazon.com /Functional-Calculus-Pseudo-Differential-Mathematics-Birkhauser/dp/0817633499   (856 words)

  
 QuickMath Automatic Math Solutions
Calculus is a vast topic, and it forms the basis for much of modern mathematics.
At school, you are introduced to differential calculus by learning how to find the derivative of a function in order to determine the slope of the graph of that function at any point.
Integral calculus is often introduced in school in terms of finding primitive functions (indefinite integrals) and finding the area under a curve (definite integrals).
www.quickmath.com /www02/pages/modules/calculus/index.shtml   (238 words)

  
 Title page for ETD etd-07082004-143318
Since the H-P functional calculus is one of the main mathematical tools throughout the dissertation, we present an elementary introduction to it based on the Riemann-Stieltjes integral.
Aside from theoretical investigations, we show how our functional analytic methods can be used for computational purposes by applying the results to the one-dimensional heat equation.
The Dunford-Taylor functional calculus is employed to obtain an estimate on the stability constant of the restricted denominator approximation method applied to the one dimensional, space-discretized heat equation.
etd.lsu.edu /docs/available/etd-07082004-143318   (283 words)

  
 Lambda Calculus | Lambda the Ultimate
It's fun to see lambda calculus introduced to an audience already familiar with categories, as that seems to be the opposite of the usual state of affairs around here, and I can think of certain LtU regulars who will hopefully find this whole subject enjoyable.
In this paper we present a solution based on the intuition that the structure of a type may be partially known/unknown at compile-time and the job of the type system is to catch incompatibilities between the known parts of types.
The main goal of this line of research is to ease functional programming, along with the subgoal to provide an axis to evaluate heuristic approaches to program synthesis such as genetic programming by telling the best performance possible by exhaustive search algorithms.
lambda-the-ultimate.org /taxonomy/term/20   (1597 words)

  
 Amazon.ca: Introductory Functional Analysis with Applications: Books: Erwin Kreyszig   (Site not responding. Last check: 2007-10-19)
Functional analysis is an abstract branch of mathematics that originated from classical analysis. Read the first page
Moreover, since the majority of "introductory" texts on Functional Analysis are primarily directed toward graduate students the aforementioned requirements coupled with a wide selection of topics makes this book easily accessible to advanced undergraduates and begining graduate students.
It shows that functional analysis is a generalization and extension of many concepts from undergraduate algebra and calculus.
www.amazon.ca /Introductory-Functional-Analysis-Applications-Kreyszig/dp/0471504599   (990 words)

  
 Funmath Home Page
Conventions in calculus, for instance, make calculation with derivatives and integrals rather smooth and problem-free: the rules are well-known and widely used, letting the symbols do the work.
First, concrete generic functionals support smooth transition between pointwise and point-free formulations (i.e., with and without variables).
Second, a functional predicate calculus makes formal logic practical for everyday use by mathematicians and engineers, allowing them to calculate with predicates and quantifiers as fluently as they have learned to do with derivatives and integrals.
www.funmath.be   (3419 words)

  
 JOT: Journal of Object Technology - The Theory of Classification, Part 14: Modification and Objects like Myself, Tony ...
The function returns the new environment, in which the old environment env is combined with a maplet from the variable var to the value val.
If all functions merely had local variables, upon function exit the environment could revert to the environment that was originally passed to the function.
For the moment, the simplest approach is to assume that objects in the theoretical model are “pure functional objects”, that is, all modifications to object state do not literally modify the state of the object, rather they create and return a new object in which the changes are manifest.
www.jot.fm /issues/issue_2004_09/column2   (3570 words)

  
 CiteULike: Tag functional   (Site not responding. Last check: 2007-10-19)
Identification and functional significance of SNPs underlying conserved haplotype frameworks across ethnic populations.
Functional connectivity in fMRI: A modeling approach for estimation and for relating to local circuits
Dendritic spines as basic functional units of neuronal integration.
www.citeulike.org /tag/functional   (851 words)

  
 No Title
In this note, we will outline a proof of the measurable functional calculus for bounded self-adjoint operators.
We begin with a proposition about Borel functions which is of some independant interest.
The integral in (1) is defined for any Borel function f, and so we use it as the definition of
www.uwm.edu /~kevinm/texfiles/funccalc/funccalc.html   (557 words)

  
 Functional calculus question - School Lounge
linear operators H->H; this is the Borel functional calculus.
To fix ideas, fix a probability space X, a Hilbert space Hand an X-spectral measure on H. This triple gives an isometric*-representation p of L^{\infty}(X) in the C*-algebra B(H) of boundedlinear operators H->H; this is the Borel functional calculus.
I would have thought that at best>an L^1 function corresponded to some unbounded operator.>Since X is a probability space f is integrable iff it is a.e.
schools.mylounge.com /t99959-functional-calculus-question.html   (1945 words)

  
 Why Do We Need a Formal Calculus?   (Site not responding. Last check: 2007-10-19)
A formal calculus facilitates equational reasoning, which can be used for proving query transformations correct.
A calculus imposes languages uniformity by making all language features transparent, that is, similar language constructs are treated in the same way.
The calculus of functional language is the lambda calculus; the calculus of relational systems is relational calculus; so what is a good calculus for OODBs?
ranger.uta.edu /~fegaras/talk98/tsld007.htm   (114 words)

  
 Lambda Calculus Introduction
This is a brief introduction to the lambda calculus and the interpreter, including executable example λ-calculus programs and source code; it should be used in conjunction with a book or other material.
The toy Lambda Calculus interpreter can be run through the wwweb.
There are very tight limits set on the size and running time of programs that can be run in this way.
www.csse.monash.edu.au /~lloyd/tildeFP/Lambda/Ch   (95 words)

  
 Abteilung Angewandte Analysis - Universität Ulm
Functional Analysis, especially Operator Theory for Evolution Equations (Functional Calculus and Semigroup Theory)
A functional calculus description of real interpolation spaces for sectorial operators,
The Functional Calculus for Sectorial Operators and Similarity Methods,
www.mathematik.uni-ulm.de /m5/haase   (154 words)

  
 Introduction to Functional Programming (1996/7)
General structure of the course: how lambda calculus turns out to be a general programming language.
Functional programming using Caml Light by Michel Mauny.
This is a collection of other Web links that are relevant to the material we cover in the second part of the course.
www.cl.cam.ac.uk /Teaching/Lectures/funprog-jrh-1996   (376 words)

  
 Atlas: On the Taylor functional calculus by V. Muller   (Site not responding. Last check: 2007-10-19)
However, the formula defining f(A) for a function f analytic on a neighbourhood of the Taylor spectrum has some drawbacks.
The method works, however, only for functions analytic on a neighbourhood of the split-spectrum which is in general bigger than the Taylor spectrum.
The aim of the talk will be to obtain a similar formula for the general Taylor functional calculus.
atlas-conferences.com /cgi-bin/abstract/caeo-72   (337 words)

  
 Definition of calculus - Merriam-Webster Online Dictionary
1 a : a method of computation or calculation in a special notation (as of logic or symbolic logic) b : the mathematical methods comprising differential and integral calculus -- often used with the
Learn more about "calculus" and related topics at Britannica.com
Get the Top 10 Search Results for "calculus"
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=calculus   (83 words)

  
 Spectral Theory
, we mean an algebra homomorphism from a space of functions
the range of the functional calculus is sometimes
Application of the functional calculus - isometric dilation.
www.math.unl.edu /~s-bbockel1/929/node22.html   (70 words)

  
 Definition of functional - Merriam-Webster Online Dictionary
1 a : of, connected with, or being a function b : affecting physiological or psychological functions but not organic structure heart disease>
2 : used to contribute to the development or maintenance of a larger whole and practical school courses>; also : designed or developed chiefly from the point of view of use clothing>
Learn more about "functional" and related topics at Britannica.com
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=functional   (85 words)

  
 IngentaConnect Fractional Calculus via Functional Calculus: Theory and Applicati...   (Site not responding. Last check: 2007-10-19)
The solutions are represented as convolutions of the input functions with the related impulse responses.
The suggested method via residue calculus separates an impulse response automatically into an exponentially damped (possibly oscillatory) part and a `slow' relaxation.
Keywords: fractional calculus; functional calculus; residue calculus; viscoelasticity; mechanics of rods
www.ingentaconnect.com /content/klu/nody/2002/00000029/F0040001/05091175;jsessionid=1qkoocwkvvskw.victoria   (296 words)

  
 VMlambda: A Functional Calculus for Scientific Discovery   (Site not responding. Last check: 2007-10-19)
Subject: VMlambda: A Functional Calculus for Scientific Discovery
Best regards, Eijiro Sumii Hideo Bannai ====================================================================== VMlambda: A Functional Calculus for Scientific Discovery Eijiro Sumii Hideo Bannai Abstract: We present VMlambda, a formalization and implementation of the functional language VML.
VML is a programming language proposed by discovery scientists for the purpose of assisting the process of knowledge discovery.
www.seas.upenn.edu /~sweirich/types/archive/1999-2003/msg00728.html   (248 words)

  
 Table of contents for Library of Congress control number 2004104471
Bibliographic record and links to related information available from the Library of Congress catalog.
126 6.3 Monogenic and Holomorphic Functions in Sectors...........
135 6.3.3 Bounded Monogenic Functions in a Sector............
www.loc.gov /catdir/toc/fy055/2004104471.html   (163 words)

  
 Calculus of Variations - ExampleProblems.com
solution Derive the Euler-Lagrange equation from the attempt to minimize the functional
(d) The set of all continuous functions on
to be a local minimum of the functional
www.exampleproblems.com /wiki/index.php/Calculus_of_Variations   (81 words)

  
 Definition of functional calculus - Merriam-Webster Online Dictionary
Definition of functional calculus - Merriam-Webster Online Dictionary
Learn more about "functional calculus" and related topics at Britannica.com
Get the Top 10 Search Results for "functional calculus"
www.merriamwebster.com /dictionary/functional+calculus   (27 words)

  
 Amazon.ca: Volterra Integral and Functional Equations: Books: G. Gripenberg,S. O. Londen,O. Staffans   (Site not responding. Last check: 2007-10-19)
Amazon.ca: Volterra Integral and Functional Equations: Books: G. Gripenberg,S. Londen,O. Staffans
Staffans (Author) "We give a brief introduction to Volterra equations, review some simple mathematical models involving such equations, and give an overview of the contents of the..." (more)
The rapid development of the theories of Volterra integral and functional equations has been strongly promoted by their applications in physics, engineering and biology.
www.amazon.ca /Volterra-Integral-Functional-Equations-Gripenberg/dp/0521372895   (455 words)

  
 Atlas: Heat kernel expansion and functional calculus by Wend Werner   (Site not responding. Last check: 2007-10-19)
Atlas: Heat kernel expansion and functional calculus by Wend Werner
For certain differential operators D, the asymptotic development of the corresponding heat kernel is linked to an asymptotic expansion of the function tr \phi(\alphaD) as \alpha --> 0, where \phi belongs to an appropriately chosen class of functions.
The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caey-83.
atlas-conferences.com /cgi-bin/abstract/caey-83   (129 words)

  
 [No title]
'(a b c) Function invocations written in list notation: the first list element is the function (or operator) followed by the arguments to which it is applied: (function arg1 arg2 arg3...
'y The empty list () When entering a list as a literal value, escape it with a single quote Without the quote it is a function invocation!
For example, '(a b c) is a list while (a b c) is a function application Lists can be nested and may contain any value, e.g.
www.cs.fsu.edu /~engelen/courses/COP4020/Functional.ppt   (406 words)

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