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A Generalization of Algebraic Surface Drawing [PDF]

open access: bronzeTOGS, 1982
The mathematical description of three dimensional surfaces usually falls in one of two classifications: parametric and algebraic. The form is defined as all points which satisfy some equation: F(x,y,z)=0.
J. Blinn
semanticscholar   +3 more sources

Stable vector bundles on an algebraic surface [PDF]

open access: bronzeNagoya mathematical journal, 1975
Let X be a non-singular projective algebraic curve over an algebraically closed field k. D. Mumford introduced the notion of stable vector bundles on X as follows; DEFINITION ([7]).
M. Maruyama
semanticscholar   +2 more sources

Generating hydrodynamic surfaces by families of Lame curves for modelling submarine hulls

open access: yesRUDN Journal of Engineering Research, 2022
This paper investigates the construction of hydrodynamic surfaces, which are defined by algebraic equations and describe the theoretical hull of a vessel. A technique for automation of generating hydrodynamic surfaces is proposed.
Valery V. Karnevich
doaj   +1 more source

Algebraic ship hull surfaces with a main frame from three plane curves in coordinate planes

open access: yesRUDN Journal of Engineering Research, 2022
One of the important problems of naval architects and designers is a choice of rational ship hull shape. A choice of ship hull form is based often on empirical formulae or on designers’ intuition.
Sergey N. Krivoshapko
doaj   +1 more source

The Algebraic Surfaces of the Enneper Family of Maximal Surfaces in Three Dimensional Minkowski Space

open access: yesAxioms, 2021
We consider the Enneper family of real maximal surfaces via Weierstrass data (1,ζm) for ζ∈C, m∈Z≥1. We obtain the irreducible surfaces of the family in the three dimensional Minkowski space E2,1.
Erhan Güler
doaj   +1 more source

Ruled algebraic surfaces with a main frame from three superellipses

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2022
An opportunity of conversion of algebraic surfaces with a main frame from three superellipses of general type into ruled surfaces of several views is shown. It is necessary to take one, two, or all of three superellipses in the form of a rhombus, i.e. it
Iraida A. Mamieva
doaj   +1 more source

Hydrodynamic surfaces with midsection in the form of Lame curve

open access: yesRUDN Journal of Engineering Research, 2021
General representation of ship geometry is given by the method of slicing the ship hull by three mutually perpendicular planes: vertical symmetry plane which runs along the middle of hull width, horizontal plane which divides the hull into underwater and
Valery V. Karnevich
doaj   +1 more source

Geometry and static analysis of thin shells in the form of a diagonal translation surface of the velaroidal type

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
The author presents the results of a study of the geometry and stress-strain state of a surface with a frame of three flat curves in coordinate planes, which have found application today mainly in the shipbuilding industry.
Olga O. Aleshina
doaj   +1 more source

Application of Orthogonal Polynomial in Orthogonal Projection of Algebraic Surface

open access: yesAxioms, 2022
Point orthogonal projection onto an algebraic surface is a very important topic in computer-aided geometric design and other fields. However, implementing this method is currently extremely challenging and difficult because it is difficult to achieve to ...
Xudong Wang, Xiaowu Li, Yuxia Lyu
doaj   +1 more source

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