In mathematics, a point x is called an isolated point of a subset S (in a topological space X) if x is an element of S and there exists a neighborhood...
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x {\displaystyle x} itself. A limit point can be characterized as an adherent point that is not an isolated point. Limit points of a set should also not...
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mathematics, a space of points is typically treated as a set, a point set. An isolated point is an element of some subset of points which has some neighborhood...
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Image segmentation (section Isolated Point Detection)
indicating the presence of an isolated point; otherwise, it returns 0. This helps in the effective detection and segmentation of isolated points in the image....
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general topology, an isolated singularity of a holomorphic function f : Ω → C {\displaystyle f:\Omega \to \mathbb {C} } is any isolated point of the boundary...
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real plane the origin is an isolated point on the curve; however when considered as a complex curve the origin is not isolated and has two imaginary tangents...
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the seventh-most topographically isolated point on Earth. The summit of Gunnbjørn Fjeld in Greenland is the highest point in the Arctic, and is the ninth...
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General topology (redirect from Point-set topology)
at a if and only if the limit of f as x approaches a is f(a). At an isolated point, every function is continuous. In several contexts, the topology of...
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Uncontacted peoples (redirect from Isolated tribe)
peoples generally refers to Indigenous peoples who have remained largely isolated to the present day, maintaining their traditional lifestyles and functioning...
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countable Hausdorff space without isolated points is meagre, whereas any topological space that contains an isolated point is nonmeagre. Because the rational...
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An isolated brain is a brain kept alive in vitro, either by perfusion or by a blood substitute, often an oxygenated solution of various salts, or by submerging...
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Neighbourhood (mathematics) (redirect from Neighboring point)
(among other things). Isolated point – Point of a subset S around which there are no other points of S Neighbourhood system – (for a point x) collection of...
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element of A {\displaystyle A} (or both). An adherent point which is not a limit point is an isolated point. Intuitively, having an open set A {\displaystyle...
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{\displaystyle A} has no isolated point. Equivalently, A {\displaystyle A} is dense-in-itself if every point of A {\displaystyle A} is a limit point of A {\displaystyle...
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metric space with no isolated point is uncountable. (If X {\displaystyle X} is a nonempty countable metric space with no isolated point, then each singleton...
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Topographic isolation (redirect from Topographically isolated)
(NHN). The following sortable table lists Earth's 40 most topographically isolated summits. The nearest peak to Germany's highest mountain, the 2,962-metre-high...
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An isolated ground (IG) (or Functional Earth (FE) in European literature) is a ground connection to a local earth electrode from equipment where the main...
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Closure (topology) (section Point of closure)
limit point. A point of closure which is not a limit point is an isolated point. In other words, a point x {\displaystyle x} is an isolated point of S...
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Continuous function (redirect from Continuity at a point)
have assumed that the domain of f does not have any isolated points.) A neighborhood of a point c is a set that contains, at least, all points within...
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single brainstorming session, and each item can be presented as an isolated point, not part of any step-by-step logical argument. Problem/solution: Recommends...
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In chess, an isolated pawn is a pawn that has no friendly pawn on an adjacent file. Isolated pawns are usually a weakness because they cannot be protected...
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Alexandroff extension (redirect from One point compactification)
Hausdorff space and p {\displaystyle p} is a limit point of X {\displaystyle X} (i.e. not an isolated point of X {\displaystyle X} ), X {\displaystyle X} is...
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Glossary of general topology (redirect from P-point)
interior of a set S is an interior point of S. Interior point See Interior. Isolated point A point x is an isolated point if the singleton {x} is open. More...
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Singleton (mathematics) (redirect from One-point set)
mathematics that can be defined based on a property of its members Isolated point – Point of a subset S around which there are no other points of S Uniqueness...
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trivially continuous at any isolated point p ∈ X {\displaystyle p\in X} . This somewhat unintuitive treatment of isolated points is necessary to ensure...
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Discrete spectrum (mathematics) (section Relation to isolated eigenvalues of finite algebraic multiplicity)
defined as the set of isolated points of its spectrum such that the rank of the corresponding Riesz projector is finite. A point λ ∈ C {\displaystyle \lambda...
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is an isolated point in the solution set of a polynomial equation in two real variables. Equivalent terms are isolated point and hermit point. For example...
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Boundary (topology) (redirect from Boundary point)
boundary point. Also, every point of S {\displaystyle S} is either an accumulation point or an isolated point. Likewise, every boundary point of S {\displaystyle...
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one and only point at which f' has a (local) minimum or maximum. If all extrema of f' are isolated, then an inflection point is a point on the graph of...
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an isolated point of σ(T). (As stated above, when T is compact, every point in its spectrum is an isolated point, except possibly the limit point 0.)...
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