Results 11 to 20 of about 1,625,991 (316)

Repulsive surfaces [PDF]

open access: yesACM Transactions on Graphics, 2021
Functionals that penalize bending or stretching of a surface play a key role in geometric and scientific computing, but to date have ignored a very basic requirement: in many situations, surfaces must not pass through themselves or each other.
Chris Yu 0001   +3 more
openaire   +3 more sources

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

Surface-to-surface intersections [PDF]

open access: yesIEEE Computer Graphics and Applications, 1993
Techniques for computing intersections of algebraic surfaces with piecewise rational polynomial parametric surface patches and intersections of two piecewise rational polynomial parametric surface patches are discussed. The techniques are classified using four categories-lattice evolution methods, marching methods, subdivision methods, and analytic ...
openaire   +1 more source

CSIDH on the Surface [PDF]

open access: yes, 2020
For primes \(p \equiv 3 \bmod 4\), we show that setting up CSIDH on the surface, i.e., using supersingular elliptic curves with endomorphism ring \(\mathbf {Z}[(1 + \sqrt{-p})/2]\), amounts to just a few sign switches in the underlying arithmetic. If \(p \equiv 7 \bmod 8\) then horizontal 2-isogenies can be used to help compute the class group action ...
Castryck, Wouter, Decru, Thomas
openaire   +2 more sources

Reconstruction of freeform surfaces for metrology [PDF]

open access: yes, 2013
The application of freeform surfaces has increased since their complex shapes closely express a product's functional specifications and their machining is obtained with higher accuracy.
ANWER, Nabil   +10 more
core   +1 more source

On surfaces and Heegaard surfaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1991
Summary: This paper is concerned with the intersection of surfaces and Heegaard surfaces in closed orientable 3-manifolds \(M\). Given a Heegaard decomposition \((M, V_ 1, V_ 2)\) it will be shown that any surface (orientable or not) in \(M\) is equivalent to a surface which intersects \(V_ 1\) in discs whose total number is limited from above by some ...
openaire   +1 more source

REAL SURFACES IN ELLIPTIC SURFACES [PDF]

open access: yesInternational Journal of Mathematics, 2005
We study the structure of complex points on real surfaces, embedded into complex elliptic surfaces. We show, for example, that any compact connected surface has a totally real embedding into a blow-up of a K3 surface. We also exhibit smooth disc bundles over compact connected orientable surfaces that have a Stein structure as Stein domains inside ...
openaire   +3 more sources

Mutual influence of cross hatch angle and superficial roughness of honed surfaces on friction in ring-pack tribo-system [PDF]

open access: yes, 2013
The cylinder bore surface texture, widely produced by the honing technique, is an essential factor for a good engine performance (friction, oil consumption, running-in, wear etc.).
EL MANSORI, Mohamed   +3 more
core   +1 more source

On-surface synthesis on a bulk insulator surface [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
Abstract On-surface synthesis has rapidly emerged as a most promising approach to prepare functional molecular structures directly on a support surface. Compared to solution synthesis, performing chemical reactions on a surface offers several exciting new options: due to the absence of a solvent, reactions can be envisioned that are ...
Antje Richter   +4 more
openaire   +4 more sources

On the genus of reducible surfaces and degenerations of surfaces [PDF]

open access: yesAnnales de l'Institut Fourier, 2007
We deal with a reducible projective surface X with so-called Zappatic singularities , which are a generalization of normal crossings. First we compute the
Calabri, A   +3 more
openaire   +5 more sources

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