Results 1 to 10 of about 34,040 (161)

On the Affine Image of a Rational Surface of Revolution

open access: yesMathematics, 2020
We study the properties of the image of a rational surface of revolution under a nonsingular affine mapping. We prove that this image has a notable property, namely that all the affine normal lines, a concept that appears in the context of affine ...
Juan G. Alcázar
doaj   +3 more sources

A new approach to the geometric modeling of Iranian domes [PDF]

open access: yesتصمیم گیری و تحقیق در عملیات, 2023
Purpose: In Islamic architecture, using arches to build dome-shaped buildings has been very common. So, the research on building the domes of shrines and mosques is undoubtedly directed at studying the arches of those buildings.
Akbar Dehghan Nezhad, Nasim Daryani
doaj   +1 more source

Simplified Analysis of Pure Conical Water Vessels Under Hydrostatic Loading [PDF]

open access: yesJournal of Engineering Research - Egypt, 2021
Liquid storage structures represent an important component of modern infrastructure. They can take variety of shapes of which the conical shape is one of the most common configurations.
Maryam Seleemah   +2 more
doaj   +1 more source

3D Reconstruction of Celadon from a 2D Image: Application to Path Tracing and VR

open access: yesApplied Sciences, 2023
We present a straightforward approach for reconstructing 3D celadon models from a single 2D image. The celadon is a historical example of the surface of revolution.
Seongil Kim, Youngjin Park
doaj   +1 more source

Transformation of Bianchi for Minding Top

open access: yesДифференциальная геометрия многообразий фигур, 2021
The work is devoted to the study of the Bianchi transform for surfac­es of revolution of constant negative Gaussian curvature. The surfaces of rotation of constant negative Gaussian curvature are the Minding top, the Minding coil, the pseudosphere ...
M.A. Cheshkova
doaj   +1 more source

On surfaces that are intrinsically surfaces of revolution [PDF]

open access: yesJournal of Geometry, 2017
23 pages, 10 ...
Freese, Daniel, Weber, Matthias
openaire   +2 more sources

Bianchi transformation of the pseudosphere

open access: yesДифференциальная геометрия многообразий фигур, 2023
The work is devoted to the study of the Bianchi transform for surfa­ces of constant negative Gaussian curvature. The surfaces of rotation of cons­tant negative Gaussian curvature are the Minding top, the Minding coil, the pseudosphere (Beltrami surface).
M. A. Cheshkova
doaj   +1 more source

Implementation of computer technologies in descriptive geometry teaching: Surfaces of revolution [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2003
The proper estimation of computer technologies is very important when computers are to be implemented in the educational process. Otherwise, if not implemented properly, the quality of students' education may be seriously imperiled.
Štulić Radovan B.   +1 more
doaj   +1 more source

INTERSECTIONS OF SURFACES OF REVOLUTION

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2022
In this paper, we deal with surfaces of revolution and their intersections. We start with the surfaces of revolution RS that have their axis along the x3–axis and find intersections with a line, a plane, and then intersection of two such RS. Furthermore, we apply formulas for the intersection with a line to determine the visibility of RS.
openaire   +2 more sources

Zeta function on surfaces of revolution [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2012
In this paper we applied the contour integral method for the zeta function associated with a differential operator to the Laplacian on a surface of revolution. Using the WKB expansion, we calculated the residues and values of the zeta function at several important points. The results agree with those obtained from the heat kernel expansion.
Jeffres, Thalia D.   +2 more
openaire   +3 more sources

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