Results 21 to 30 of about 362,488 (307)
On sums of narrow operators on Köthe function spaces
Abstract We find necessary and sufficient conditions on a Kothe Banach space E on [ 0 , 1 ] and a Banach space X under which a sum of two narrow operators from E to X is narrow. Using this condition, we prove that, given a Kothe Banach space E on [ 0 , 1 ] , there exist a Banach space X and ...
Volodymyr Mykhaylyuk, M. M. Popov
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Robot-assisted Minimally Invasive Management of a Calcified Mandibular Lateral Incisor: A Case Report [PDF]
Introduction and aims: Calcified root canals in mandibular anterior teeth present significant therapeutic challenges due to their narrow anatomy and minimal tolerance for procedural errors.
Yuxin Liu +4 more
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On linear sections of orthogonally additive operators
Our first result asserts that, for linear regular operators acting from a Riesz space with the principal projection property to a Banach lattice with an order continuous norm, the $C$-compactness is equivalent to the $AM$-compactness. Next we prove that,
A. Gumenchuk, I. Krasikova, M. Popov
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The paper presents an idea to use weak derivatives in interval global optimization. It allows using the Newton operator to narrow domains of non-differentiable functions. Preliminary computational experiments are also presented.
Bartłomiej Jacek Kubica
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Adaptive dating and fast proposals: Revisiting the phylogenetic relaxed clock model.
Relaxed clock models enable estimation of molecular substitution rates across lineages and are widely used in phylogenetics for dating evolutionary divergence times.
Jordan Douglas +2 more
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Narrow operators and the Daugavet property for ultraproducts [PDF]
We show that if $T$ is a narrow operator on $X=X_{1}\oplus_{1} X_{2}$ or $X=X_{1}\oplus_{\infty} X_{2}$, then the restrictions to $X_{1}$ and $X_{2}$ are narrow and conversely. We also characterise by a version of the Daugavet property for positive operators on Banach lattices which unconditional sums of Banach spaces inherit the Daugavet property, and
Dmitriy Bilik +3 more
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Feeding the world in a narrowing safe operating space
Current world agriculture leads to planetary-boundary transgressions. Although achieving global food security within these environmental bounds is possible through sustainable transformations of the food system, Earth-system feedbacks could increasingly narrow the maneuvering space.
Dieter Gerten +2 more
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Widening and narrowing operators for abstract interpretation [PDF]
Abstract Interpretation, one of the most applied techniques for semantics based static analysis of software, is based on two main key-concepts: the correspondence between concrete and abstract semantics through Galois connections/insertions, and the feasibility of a fixed point computation of the abstract semantics, through the fast convergence of ...
CORTESI, Agostino, ZANIOLI, Matteo
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Radial symmetry for a generalized nonlinear fractional p-Laplacian problem
This paper first introduces a generalized fractional p-Laplacian operator (–Δ)sF;p. By using the direct method of moving planes, with the help of two lemmas, namely decay at infinity and narrow region principle involving the generalized fractional p ...
Wenwen Hou +3 more
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The combine harvester in Yogyakarta Province Special Region has a small size because it is used to harvest rice in a narrow area. The purpose of this study is to determine which parts of the mini combine harvester machine are not ergonomic and need to be
Guntarti Tatik Mulyati +3 more
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