Results 81 to 90 of about 8,379 (259)

Some estimates for the commutators of multilinear maximal function on Morrey-type space

open access: yesOpen Mathematics, 2021
In this paper, we study the equivalent conditions for the boundedness of the commutators generated by the multilinear maximal function and the bounded mean oscillation (BMO) function on Morrey space.
Yu Xiao, Zhang Pu, Li Hongliang
doaj   +1 more source

GRAVITY FROM A MODIFIED COMMUTATOR

open access: yes, 2005
We show that a suitably chosen position-momentum commutator can elegantly describe many features of gravity, including the IR/UV correspondence and dimensional reduction (''holography''). Using the most simplistic example based on dimensional analysis of
Jackson, Mark G., MARK G. JACKSON
core   +1 more source

DC Side Impedance Modelling of an Actual Line Commutated Converter High Voltage Direct Current System and DC Resonance Characteristics

open access: yesHigh Voltage, EarlyView.
ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang   +6 more
wiley   +1 more source

Primitive and decomposable elements in homology of ΩΣℂP∞

open access: yesOpen Mathematics, 2021
For each positive integer nn, we let φn:ΣCP∞→ΣCP∞{\varphi }_{n}:\Sigma {\mathbb{C}}{P}^{\infty }\to \Sigma {\mathbb{C}}{P}^{\infty } be the self-maps of the suspension of the infinite complex projective space, or the localization of this space at a set ...
Lee Dae-Woong
doaj   +1 more source

Fused Collapsing for Wide BVH Construction

open access: yesComputer Graphics Forum, EarlyView.
Abstract We propose a novel approach for constructing wide bounding volume hierarchies on the GPU by integrating a simple bottom‐up collapsing procedure within an existing binary bottom‐up BVH builder. Our approach directly constructs a wide BVH without traversing a temporary binary BVH as done by previous approaches and achieves 1.4 – 1.6 × lower ...
Wilhem Barbier, Mathias Paulin
wiley   +1 more source

Stability Conditions for Perturbed Semigroups on a Hilbert Space via Commutators

open access: yesCommunications in Advanced Mathematical Sciences, 2019
Let $A$ and $B$ be linear operators on a Hilbert space. Let $A$ and $A+B$ generate $C_0$-semigroups $e^{tA}$ and $e^{t(A+B)}$, respectively, and $e^{tA}$ be exponentially stable.
Michael Gil'
doaj   +1 more source

A Decomposition Formula for the Weighted Commutator

open access: yes, 2014
We decompose the weighted subobject commutator of M. Gran, G. Janelidze and A.
Martins-Ferreira, Nelson   +3 more
core   +1 more source

On Spatial Point Processes With Composition‐Valued Marks

open access: yesInternational Statistical Review, EarlyView.
Summary Methods for marked spatial point processes with scalar marks have seen extensive development in recent years. While the impressive progress in data collection and storage capacities has yielded an immense increase in spatial point process data with highly challenging non‐scalar marks, methods for their analysis are not equally well developed ...
Matthias Eckardt   +2 more
wiley   +1 more source

CONTROL OVER «BRUSH-COMMUTATOR» SPARKING IN DC MACHINES USING OPTOELECTRONIC SPARKING ANALYZER

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005
A «brush-commutator» contact is one of the factor that affects commutative properties and commutation. The paper presents a new method for estimation of a commutation.
V. Zelinski
doaj  

On the ternary commutator, I: Exact Mal'tsev categories,

open access: yes, 2021
In this first article on the Bulatov commutator, we introduce a ternary commutator of equivalence relations in the context of an exact Mal'tsev category with binary coproducts. We prove that, for Mal'tsev varieties, our notion is a particular case (where
Simeu, Cyrille Sandry   +1 more
core  

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