Results 31 to 40 of about 1,693,905 (179)

Generalized Riemann-Liouville fractional Bézier curve and its applications in engineering surface

open access: yesAlexandria Engineering Journal, 2023
Modeling of free-form curves and surfaces is vital in the manufacturing industry and engineering. Curves and surfaces that have flexible shapes and adjustable lengths and sizes are a necessity to fulfill the needs of the manufacturing industry.
Syed Ahmad Aidil Adha Said Mad Zain   +2 more
doaj   +1 more source

Complex random surfaces

open access: yesPhysics Letters B, 1991
Abstract Several infinite sets of models of random surfaces, defined by means of integrals over matrix ensembles, are solved in a double-scaling limit. These models are exactly soluble in at least two distinct large N limits. The triangulated surfaces are complicated due to the existence of two distinct kinds of vertices in the triangulations. In one
Arlen Anderson   +2 more
openaire   +1 more source

Levi umbilical surfaces in complex space

open access: yes, 2005
We define a complex connection on a real hypersurface of $\C^{n+1}$ which is naturally inherited from the ambient space. Using a system of Codazzi-type equations, we classify connected real hypersurfaces in $\C^{n+1}$, $n\ge 2$, which are Levi umbilical ...
Citti A   +8 more
core   +1 more source

The Effect of Drag Finishing on Additively Manufactured Customized Dental Crowns

open access: yesMetals
Cobalt–chromium (CoCr) alloys are frequently used to produce customized dental applications such as crowns, bridges, or prostheses. These medical products have anatomical forms, and can be effectively manufactured using the laser-based powder bed fusion (
Cosmin Cosma   +7 more
doaj   +1 more source

Homogeneous complex surfaces

open access: yesMathematische Annalen, 1984
The content of this paper is a classification of all two dimensional complex manifolds which are homogeneous under the action of a real Lie group of holomorphic automorphisms. The problem of classifying homogeneous surfaces has been considered in various different settings and of these results we note the following.
Oeljeklaus, Karl, Richthofer, Wolfgang
openaire   +1 more source

Computational complexity of combinatorial surfaces [PDF]

open access: yesProceedings of the sixth annual symposium on Computational geometry - SCG '90, 1990
We investigate the computational problems associated with combinatorial surfaces. Specifically, we present an algorithm (based on the Brahana-Dehn-Heegaard approach) for transforming the polygonal schema of a closed triangulated surface into its canonical form in O(n log n) time, where n is the total number of vertices, edges and faces. We also give an
Vegter, Gert, Yap, Chee K.
openaire   +2 more sources

On numerically pluricanonical cyclic coverings

open access: yes, 2013
In this article, we investigate some properties of cyclic coverings of complex surfaces of general type branched along smooth curves that are numerically equivalent to a multiple of the canonical class.
Kharlamov, Viatcheslav, Kulikov, Viktor
core   +1 more source

MILLING OF COMPLEX SURFACES [PDF]

open access: yesFiabilitate şi Durabilitate, 2018
In the article are considered principle kinematic schemes of cutting for perform the machining of recessed and convex rotating surfaces. The mathematical dependencies determining the trajectory character described by the relative motion of the ...
Evstati LEFTEROV, Tanya AVRAMOVA
doaj  

Robustness surfaces of complex networks [PDF]

open access: yesScientific Reports, 2014
Despite the robustness of complex networks has been extensively studied in the last decade, there still lacks a unifying framework able to embrace all the proposed metrics. In the literature there are two open issues related to this gap: (a) how to dimension several metrics to allow their summation and (b) how to weight each of the metrics.
Manzano, Marc   +4 more
openaire   +7 more sources

de Sitter extremal surfaces

open access: yes, 2015
We study extremal surfaces in de Sitter space in the Poincare slicing in the upper patch, anchored on spatial subregions at the future boundary ${\cal I}^+$, restricted to constant boundary Euclidean time slices (focussing on strip subregions).
Narayan, K.
core   +1 more source

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