Results 11 to 20 of about 34,040 (161)

A cubic surface of revolution [PDF]

open access: yesThe Mathematical Gazette, 2014
We develop a direct and elementary (calculus-free) exposition of the famous cubic surface of revolution x^3+y^3+z^3-3xyz=1.12 pages. We have added a second elementary proof that the surface is of revolution.
openaire   +3 more sources

Projective Reconstruction of Surfaces of Revolution [PDF]

open access: yes, 2003
This paper addresses the problem of recovering the generating curve of a surface of revolution from a single uncalibrated perspective view, based solely on the object’s outline and two (partly) visible cross-sections. Without calibration of the camera’s internal parameters such recovery is only possible up to a particular transformation of the true ...
Utcke, S, Zisserman, A
openaire   +2 more sources

Determination of intersecting curve between two surfaces of revolution with parallel axes by use of auxiliary planes and auxiliary spheres [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2002
In this paper the space intersecting curve between two surfaces of revolution with parallel axes of surfaces have been determined. Two mathematical models for determination of intersecting curve between two surfaces of revolution have been formed ...
Obradović Ratko
doaj   +1 more source

The plane section of the surface of revolution [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2005
In this paper a procedure for determining a plane section of the surface of revolution was described. The surface of revolution is given by an axis of the revolution and a meridian which is coplanar with the axis.
Obradović Ratko M.
doaj   +1 more source

Geodesics on surfaces of revolution [PDF]

open access: yesTransactions of the American Mathematical Society, 1946
Introduction. We are concerned in this paper with the behavior in the large of the geodesic lines on a class of surfaces of revolution. The central theme is the number and the distribution of the double points of these geodesics, and one of the main theorems establishes a "zoning" of the surfaces in a manner dictated by this distribution.
openaire   +2 more sources

THE HYPERBOLOID OF REVOLUTION OF ONE NAPPE A RULED SURFACE GENERATING CONICS

open access: yesJournal of Industrial Design and Engineering Graphics, 2013
The paper intends to underline the property of the hyperboloid of revolution of one nappe to generate on its surface, when it is cut by a plane, the three known conics (ellipse, hyperbola and parabola).Cutting this surface by a plane, we find the ...
Gabriel Oprea, Ana Maria Mihaela Rugescu
doaj   +4 more sources

Surfaces of Revolution and Canal Surfaces with Generalized Cheng–Yau 1-Type Gauss Maps

open access: yesMathematics, 2020
In the present work, the notion of generalized Cheng–Yau 1-type Gauss map is proposed, which is similar to the idea of generalized 1-type Gauss maps. Based on this concept, the surfaces of revolution and the canal surfaces in the Euclidean three-space ...
Jinhua Qian   +3 more
doaj   +1 more source

Isoperimetry in Surfaces of Revolution with Density [PDF]

open access: yesMissouri Journal of Mathematical Sciences, 2018
The isoperimetric problem with a density or weighting seeks to enclose prescribed weighted volume with minimum weighted perimeter. According to Chambers' recent proof of the log-convex density conjecture, for many densities on $\mathbb{R}^n$ the answer is a sphere about the origin. We seek to generalize his results to some other spaces of revolution or
Bongiovanni, Eliot   +3 more
openaire   +4 more sources

A practical evaluation approach to form deviation for surface of revolution based on optimal interpolation of generating line

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper proposes a practical approach to evaluating form deviation of surface of revolution based on the coordinate measurement data of discrete points.
Hua QIU
doaj   +1 more source

Space–time slices and surfaces of revolution [PDF]

open access: yesJournal of Mathematical Physics, 2004
Under certain conditions, a (1+1)-dimensional slice ĝ of a spherically symmetric black hole space–time can be equivariantly embedded in (2+1)-dimensional Minkowski space. The embedding depends on a real parameter that corresponds physically to the surface gravity κ of the black hole horizon.
Giblin, John T. jun., Hwang, Andrew D.
openaire   +3 more sources

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