KeyWEn.com  
 
 
 
Continuous Function       Article     History   Tree Map
  Encyclopedia of Keywords > Science > Mathematics > Topology > Compact Space > Continuous Function   Michael Charnine

Keywords and Sections
ACTION
RESULTING FUNCTION
WEAKLY CONTINUOUS
SEQUENTIALLY CONTINUOUS
DISCRETE FUNCTION
REAL-VALUED
CONTINUOUS INVERSE
CONTINUOUS INVERSE FUNCTION
ENTIRE UNIT INTERVAL
SENSE
SHOW
LINE
NUMBER
POLYNOMIAL
POINTS
PARTICULAR
THEOREM
MINIMUM
DOMAIN
MEANS
CONSTANT
INPUTS
NOTION
NOTIONS
HOLOMORPHIC
SUBSPACE
PROOF
POINT
DERIVATIVE
INNER PRODUCT
STUDY
CLOSED
RARR
CONTINUOUS FUNCTIONS
SPACES
TOPOLOGICAL SPACES
FUNCTIONAL ANALYSIS
HAIRY BALL THEOREM
HAUSDORFF SPACE
FACT
CLOSED NEIGHBOURHOODS
HAUSDORFF
LOCALLY COMPACT HAUSDORFF SPACES
UNIFORM SPACE
TOPOLOGICAL SPACE
COMMON SITUATION
Review of Short Phrases and Links

    This Review contains major "Continuous Function"- related terms, short phrases and links grouped together in the form of Encyclopedia article. Please click on Move Up to move good phrases up.

Definitions Submit/More Info Add a definition

  1. Every continuous function is bounded on such space.
  2. For any continuous function, the map given by defines a morphisms of sheaves from to with respect to. Move Up

Action Submit/More Info Add phrase and link

  1. Such an action induce an action on the space of continuous function on X by.

Resulting Function Move Up Add phrase and link

  1. Given a continuous function f, let Tf be the operator that multiplies by f and then kills off the negative Fourier coefficients of the resulting function.

Weakly Continuous Move Up Add phrase and link

  1. To see that, we recall that every continuous function is weakly continuous.

Sequentially Continuous Move Up Add phrase and link

  1. Every continuous function is sequentially continuous.

Discrete Function Move Up Add phrase and link

  1. We can speak of a continuous function or a discrete function.

Real-Valued Move Up Add phrase and link

  1. Consider a real-valued, continuous function f on a closed interval [ a, b] with f(a) = f(b).

Continuous Inverse Move Up Add phrase and link

  1. A precise definition of homeomorphic, involving a continuous function with a continuous inverse, is necessarily more technical.

Continuous Inverse Function Move Up Add phrase and link

  1. A continuous function with a continuous inverse function is called " bicontinuous ".

Entire Unit Interval Move Up Add phrase and link

  1. We start with a continuous function h from the Cantor space onto the entire unit interval [0,1].

Sense Move Up Add phrase and link

  1. The definition of continuous function remains unchanged other than having to be worded carefully to continue to make sense after these generalizations.

Show Move Up Add phrase and link

  1. We will show that is a -adically continuous function, and thus interpolates to a continuous function on the -adic integers.

Line Move Up Add phrase and link

  1. For a continuous function on the real line, one branch is required between each pair of local extrema.

Number Move Up Add phrase and link

  1. However, when the base a is not a positive real number and the exponent n is not an integer, then a n cannot be defined as a unique continuous function of a.

Polynomial Move Up Add phrase and link

  1. Over a finite interval, it is always possible to approximate a continuous function with arbitrary precision by a polynomial of sufficiently high degree.
  2. The Stone-Weierstrass theorem, however, states that every continuous function on [ a, b] can be approximated as closely as desired by a polynomial. Move Up

Points Move Up Add phrase and link

  1. Then there exists a continuous function g from X to the interval [0,1] such that f(x)=g(x) for all points in A.

Particular Move Up Add phrase and link

  1. Let h n(S) = f n(S)-g(S). this is a continuous function, and in particular, it is upper semicontinuous.

Theorem Move Up Add phrase and link

  1. Theorem 3: Let f be a continuous function mapping D into the Riemann sphere S and let t be a boundary function for f.

Minimum Move Up Add phrase and link

  1. It follows that a continuous function on a compact space always attains its maximum and minimum.

Domain Move Up Add phrase and link

  1. Finally, one can extend f to a continuous function F whose domain is the entire unit interval [0,1].

Means Move Up Add phrase and link

  1. This means that a RBF network with enough hidden neurons can approximate any continuous function with arbitrary precision.

Constant Move Up Add phrase and link

  1. Hence every continuous function to the real line must be constant, and hence bounded, proving that X is a pseudocompact space.
  2. Whilst there is a continuous function that takes the two points of 2 to those of Σ, any continuous function Σ→ 2 is constant. Move Up

Inputs Move Up Add phrase and link

  1. Continuous function used without restriction: A continuous function for which inputs of any value make sense in context.

Notion Move Up Add phrase and link

  1. To make everything quantitative, we will replace the notion of a continuous function by that of a Lipschitz function.

Notions Move Up Add phrase and link

  1. This means that the notions of continuous function and homeomorphisms should be defined on the metric structure without any reference to topology.

Holomorphic Move Up Add phrase and link

  1. Another typical example of a continuous function which is not holomorphic is complex conjugation.
  2. Suppose U is a domain in, and is holomorphic: it is complex-differentiable, and its differential is a continuous function. Move Up

Subspace Move Up Add phrase and link

  1. Let f be a continuous function from the subspace A to the interval [0,1].

Proof Move Up Add phrase and link

  1. Proof: Take f to be any continuous function on a circle.

Point Move Up Add phrase and link

  1. This is a special type of continuous function known as a retraction: every point of the codomain (in this case S n - 1) is a fixed point of the function.
  2. Nowhere continuous function: is not continuous at any point of its domain (e.g. Move Up
  3. If f is a continuous function, meaning that its graph is an unbroken curve with no gaps, then Q is a continuous function away from the point h = 0. Move Up

Derivative Move Up Add phrase and link

  1. Roughly, any distribution is locally a (multiple) derivative of a continuous function.

Inner Product Move Up Add phrase and link

  1. Because the inner product is a continuous function, the SOT is stronger than WOT. The following example shows that this inclusion is strict.
  2. The Cauchy–Schwarz is used to prove that the inner product is a continuous function with respect to the topology induced by the inner product itself. Move Up

Study Move Up Add phrase and link

  1. In Banach spaces, a large part of the study involves the dual space: the space of all continuous function (topology) linear functionals.

Closed Move Up Add phrase and link

  1. In 1870, Eduard Heine showed that a continuous function defined on a closed and bounded interval was in fact uniformly continuous.

Rarr Move Up Add phrase and link

  1. Every continuous function f:[0,1] → R is bounded.
  2. That is, for any two points x, y in X there exists a continuous function f: X → R with f(x) = 0 and f(y) = 1. Move Up

Continuous Functions Move Up Add phrase and link

  1. Remark. Continuous relations are generalization of continuous functions: if a continuous relation is also a function, then it is a continuous function.

Spaces Move Up Add phrase and link

  1. The uniform sense of convergence is appropriate for these spaces: Any uniform limit of continuous functions on a fixed bounded set is a continuous function.

Topological Spaces Move Up Add phrase and link

  1. Any continuous function between two topological spaces is monotone with respect to the specialization preorders of these spaces.
  2. Since metric spaces are topological spaces, one has a notion of continuous function between metric spaces. Move Up
  3. Continuous Function (or Map): a function between topological spaces such that is open whenever is open. Move Up

Functional Analysis Move Up Add phrase and link

  1. An important object of study in functional analysis are the continuous function (topology) linear transformation defined on Banach and Hilbert spaces.

Hairy Ball Theorem Move Up Add phrase and link

  1. However, the hairy ball theorem says there exists no continuous function that can do this for every point on the sphere (ie.
  2. There is no continuous function that can do so, by the hairy ball theorem. Move Up

Hausdorff Space Move Up Add phrase and link

  1. In particular, any continuous function from a hyperconnected space to a Hausdorff space must be constant.

Fact Move Up Add phrase and link

  1. However, a fact that many find surprising, is that the Fourier series of a continuous function need not converge pointwise.

Closed Neighbourhoods Move Up Add phrase and link

  1. This is a stronger condition than T 2½, since two points separated by a continuous function are necessarily separated by closed neighbourhoods.
  2. The terms separated by closed neighbourhoods and separated by a continuous function are defined in the article Separated sets. Move Up

Hausdorff Move Up Add phrase and link

  1. Let f : X → Y be a continuous function and suppose Y is Hausdorff.

Locally Compact Hausdorff Spaces Move Up Add phrase and link

  1. A variant of this result states that if a continuous function between locally compact Hausdorff spaces is proper, then it is also closed.

Uniform Space Move Up Add phrase and link

  1. The fine uniformity is characterized by the universal property: any continuous function f from a fine space X to a uniform space Y is uniformly continuous.

Topological Space Move Up Add phrase and link

  1. The following notions are defined: point of topological space, subset of topological space, subspace of topological space, and continuous function.
  2. For any topological space X there is a unique continuous function from ∅ to X, namely the empty function. Move Up

Common Situation Move Up Add phrase and link

  1. The most common situation occurs when X is a topological space (such as the real line) and f is a continuous function.

Categories Submit/More Info

  1. Science > Mathematics > Topology > Compact Space
  2. Fixed Point Move Up
  3. Uniformly Move Up
  4. Science > Mathematics > Topology > Topological Space Move Up
  5. Bounded Move Up

Related Keywords

    * Analytic Function * Bounded * Calculus * Chebyshev Nodes * Closed Interval * Closed Sets * Compact * Compact Metric Space * Compact Space * Continuous * Differentiable * Fixed Point * Function * Functions * Homeomorphism * Interval * Metric Space * Riemann Integral * Set * Sheaf * Space * Topology * Uniformly * Unit Interval
  1. Books about "Continuous Function" in Amazon.com

Continue: More Keywords - - - - - - - - - - Submit/More Info

Book: Keywen Category Structure


  Short phrases about "Continuous Function"
  Originally created: August 01, 2010.
  Please send us comments and questions by this Online Form
  Click on Submit/More Info to submit a phrase/keyword and to see more info.
  Please click on Move Up to move good phrases up.
0.0192 sec. a=1..