Results 31 to 40 of about 6,370,116 (297)

Least-Squares evaluation of DMT dissipation test data – some preliminary results [PDF]

open access: yesE3S Web of Conferences
The Flex method does not work if the DMTA total stress dissipation curve is non-monotonic or has no inflexion point. To overcome the problems, various versions of a mathematically precise DMTA total stress dissipation test evaluation method are suggested
Imre Emőke   +4 more
doaj   +1 more source

Unsupervised Learning of Category-Specific Symmetric 3D Keypoints from Point Sets [PDF]

open access: yesEuropean Conference on Computer Vision, 2020
Automatic discovery of category-specific 3D keypoints from a collection of objects of some category is a challenging problem. One reason is that not all objects in a category necessarily have the same semantic parts.
Clara Fernandez-Labrador   +5 more
semanticscholar   +1 more source

Point-evaluation functionals on algebras of symmetric functions on $(L_\infty)^2$

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
It is known that every continuous symmetric (invariant under the composition of its argument with each Lebesgue measurable bijection of $[0,1]$ that preserve the Lebesgue measure of measurable sets) polynomial on the Cartesian power of the complex Banach
T.V. Vasylyshyn
doaj   +1 more source

Singularly perturbed rank one linear operators

open access: yesМатематичні Студії, 2021
The basic principles of the theory of singularly perturbed self-adjoint operators are generalized to the case of closed linear operators with non-symmetric perturbation of rank one.
M.E. Dudkin, O. Yu. Dyuzhenkova
doaj   +1 more source

3D hydrodynamical models of point-symmetric planetary nebulae: the special case of H 1-67 [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We present 3D hydrodynamical simulations of a precessing jet with a time-dependent ejection velocity or a time-dependent ejection density, interacting with a circumstellar medium given by a dense, anisotropic, and slow AGB wind, forming a torus.
J. S. Rechy-García   +2 more
semanticscholar   +1 more source

Physical parameters of point-symmetric planetary nebulae [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
We present a systematic observational study of 32 PNe that present point-symmetric structures, multiple bipolar outflows or other related features.
R. Vázquez   +10 more
openaire   +1 more source

Forecasting the Carbon Price Using Extreme-Point Symmetric Mode Decomposition and Extreme Learning Machine Optimized by the Grey Wolf Optimizer Algorithm

open access: yesEnergies, 2019
Due to the nonlinear and non-stationary characteristics of the carbon price, it is difficult to predict the carbon price accurately. This paper proposes a new novel hybrid model for carbon price prediction. The proposed model consists of an extreme-point
Jianguo Zhou   +3 more
semanticscholar   +1 more source

On Coincidence and Fixed-Point Theorems in Symmetric Spaces

open access: yesFixed Point Theory and Applications, 2008
We give an axiom (C.C) in symmetric spaces and investigate the relationships between (C.C) and axioms (W3), (W4), and (H.E). We give some results on coinsidence and fixed-point theorems in symmetric spaces, and also, we give some examples for the ...
Jong-Sook Bae   +2 more
doaj   +2 more sources

The Kinematics of Point-symmetric Planetary Nebulae

open access: yesThe Astronomical Journal, 1999
Four planetary nebulae (PNe) with conspicuous point-symmetric morphology are studied in this paper through high-quality imagery and long-slit echelle spectroscopy. Point symmetry is also found in the velocity space, and this is related to particular forms of bipolar collimated outflows.
M. A. Guerrero   +2 more
openaire   +1 more source

The chiral ring of a symmetric orbifold and its large N limit

open access: yesJournal of High Energy Physics, 2023
We analyze the chiral operator ring of the symmetric orbifold conformal field theory on the complex two-plane ℂ2. We compute the large N limit of the ring and exhibit its factorized leading order behaviour.
Sujay K. Ashok, Jan Troost
doaj   +1 more source

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