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Geometry on arc spaces of algebraic varieties [PDF]

open access: green, 2000
This paper is a survey on arc spaces, a recent topic in algebraic geometry and singularity theory. The geometry of the arc space of an algebraic variety yields several new geometric invariants and brings new light to some classical invariants.Comment: 22
Jan Denef, François Loeser
core   +6 more sources

The Geometry of $(t\mod{q})$-arcs [PDF]

open access: greenDesigns, Codes and Cryptography, 2022
Abstract In this paper, we give a geometric construction of the three strong non-lifted $$(3\mod 5)$$ ( 3 mod 5 )
Sascha Kurz   +3 more
  +7 more sources

Tensile strength of Co-Cr and Zr substructures on titanium abutments with different geometries [PDF]

open access: yesBMC Oral Health
Background This study aimed to evaluate the effects of different abutment geometries, abutment materials (Cobalt–Chromium and Zirconium), and cement types on the tensile strength of cement-retained implant-supported restorations in vitro. Methods A total
Zeynep Uzgur, Nihal Özcan, Saadet Atsü
doaj   +2 more sources

On partial geometries arising from maximal arcs [PDF]

open access: bronzeJournal of Algebraic Combinatorics, 2021
The subject of this paper are partial geometries $pg(s,t,α)$ with parameters $s=d(d'-1), \ t=d'(d-1), \ α=(d-1)(d'-1)$, $d, d' \ge 2$. In all known examples, $q=dd'$ is a power of 2 and the partial geometry arises from a maximal arc of degree $d$ or $d'$ in a projective plane of order $q$ via a known construction due to Thas \cite{Thas73} and Wallis ...
Mustafa Gezek, Vladimir D. Tonchev
openalex   +5 more sources

Lidar arc scan uncertainty reduction through scanning geometry optimization [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
Doppler lidars are frequently operated in a mode referred to as arc scans, wherein the lidar beam scans across a sector with a fixed elevation angle and the resulting measurements are used to derive an estimate of the n minute horizontal mean wind ...
H. Wang   +3 more
doaj   +4 more sources

Bi-Lipschitz arcs in metric spaces with controlled geometry

open access: diamondRevista Matemática Iberoamericana
In this paper, we generalize a bi-Lipschitz extension result of David and Semmes from Euclidean spaces to complete metric measure spaces with controlled geometry (Ahlfors regularity and supporting a Poincaré inequality). In particular, we find sharp conditions on metric measure spaces X
Jacob Honeycutt   +2 more
openalex   +5 more sources

Prediction of deposition bead geometry in wire arc additive manufacturing using machine learning

open access: yesJournal of Materials Research and Technology, 2022
The deposition bead geometry in the arc strike zone is often abnormal compared with that in the middle deposition zone. The accumulation of these errors in the deposition process results in defects in the overall geometry of the deposition bead.
Won-Jung Oh   +2 more
doaj   +1 more source

Two gas metal arc welding process dataset of arc parameters and input parameters

open access: yesData in Brief, 2021
The dataset was collected from experiments using the gas metal arc welding (GMAW) process. The experiments were planned with Central Composite Design to obtain a greater variety of data.
Rogfel Thompson Martinez   +2 more
doaj   +1 more source

Geometrical Relations Between Slab Dip and the Location of Volcanic Arcs and Back‐Arc Spreading Centers

open access: yesGeochemistry, Geophysics, Geosystems, 2023
A global study of subduction zone dynamics indicates that the thermal structure of the overriding plate may control arc location. A fast convergence rate and a steep slab dip bring a hotter mantle further into the wedge corner, forming arc volcanoes ...
Goeun Ha   +2 more
doaj   +1 more source

Arcs and ovals in infinite {$K$}-clan geometry [PDF]

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 1998
Let \(F=GF(q)\) be the Galois field with \(q\) elements. A \(q\)-clan is a set \({\mathcal C}\) of \(q\), \(2\times 2\) matrices over \(F\) whose pairwise differences are anisotropic, i.e., define quadratic forms that represent 0 only trivially. Associated with a \(q\)-clan \({\mathcal C}\) is a flock \({\mathcal F}({\mathcal C})\) of a quadratic cone ...
Bader, Laura, O'Keefe, Christine M.
openaire   +4 more sources

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