closed curve

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Related to closed curve: simple curve
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Noun1.closed curve - a curve (such as a circle) having no endpoints
curve, curved shape - the trace of a point whose direction of motion changes
Jordan curve, simple closed curve - a closed curve that does not intersect itself
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References in periodicals archive ?
If [gamma] is a closed curve in M, then its vertical torus [S.sub.[gamma]] = [[pi].sup.-1]([gamma]) is a Willmore-like surface, if and only if, [gamma] is a extremal of the following elastic-like energy [E.sub.[phi]]([gamma]) = [[integral].sub.[gamma]]([[kappa].sup.2] + 4[phi])ds.
The storm area is composed of cumulonimbus clouds and is a closed curve with inward increasing precipitation grades.
Up to now, the researches on discrete models are still focused on the dynamical behaviors (including stability, periodic solutions, bifurcations, chaos, and chaotic control; see[1-6]), and most of the scholars have studied the Neimark-Sacker bifurcation, a codimension-1 bifurcation, which has shown one invariant closed curve bifurcating from an equilibrium point.
Consider a handle H (either a 0- or 1-handle), which is bordered by the simple closed curve [partial derivative]H.
What is the mathematical term for a twodimensional closed curve having the shape of an elongated circle?
Section 2 reviews how FDs are used for representing a closed curve on the plane and discuss the issue of parametrization in detail.
In the paper "Dynamics, Circuit Design, and Synchronization of a New Chaotic System with Closed Curve Equilibrium," X.
For high antigenicity of the tumor, a globally closed curve exists when the dosage of [CD4.sup.+] T cells is small.
In plane geometry Holditch Theorem states if a chord of fixed length is allowed to rotate inside a convex closed curve then the locus of a point on the chord a distance p from one end and a distance q from the other is a closed curve whose area is less than that of the original curve by [pi]pq.
The closed curve in red is the Hermite curve with the inputting of the 36 points refined and shown in Figure 2(e).
The paper, through the eye-movement experiment, obtains characteristics that influence product style, utilizes shape grammar to extract the contour of feature elements and transforms it to two-dimensional closed curve, then makes similarity analysis on different feature elements via Fourier decomposition.