Results 111 to 120 of about 5,309,720 (337)

Generalized Carleson Measure Spaces and Their Applications

open access: yesAbstract and Applied Analysis, 2012
We introduce the generalized Carleson measure spaces CMOrα,q that extend BMO.
Chin-Cheng Lin, Kunchuan Wang
doaj   +1 more source

Immersing homogeneous spaces in euclidean space

open access: yesPublicacions Matemàtiques, 1982
In Trans. Am. Math. Soc. 213, 305-314 (1975; Zbl 0312.55020), \textit{K. Y. Lam} proves, among other things, an immersion result for the real flag manifold \(G_{{\mathbb{R}}}(n_ 1,...,n_ s)=O(n_ 1+...+n_ s)/O(n_ 1)x...xO(n_ s)\) where O(n) is the real orthogonal group. His result is a special case of the following more general observation.
openaire   +7 more sources

Numerical Model and Experimental Validation of Composite Metal Foam in Protecting Carbon Steel Against Puncture

open access: yesAdvanced Engineering Materials, EarlyView.
The puncture prevention and energy absorption performance of composite metal foam (CMF) are studied experimentally and numerically for hazardous materials transportation protection. The numerical model implementing air within the CMF (nonhomogeneous model using fluid cavity technique) predicts puncture more accurately compared to the homogeneous CMF ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification

open access: yesAdvanced Engineering Materials, EarlyView.
A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu   +2 more
wiley   +1 more source

Homogeneous Triebel-Lizorkin Spaces on Stratified Lie Groups

open access: yesJournal of Function Spaces and Applications, 2013
Homogeneous Triebel-Lizorkin spaces with full range of parameters are introduced on stratified Lie groups in terms of Littlewood-Paley-type decomposition.
Guorong Hu
doaj   +1 more source

Additive Manufacturing of Hot Work Tool Steel by Laser Powder Bed Fusion Utilizing Powder Mixtures Including Grinding Chips: Assessing Chemical Homogeneity and Achievable Hardness

open access: yesAdvanced Engineering Materials, EarlyView.
Grinding chips of high‐alloyed steel are prepared to be admixed to a starting powder mixture for laser powder bed fusion. A three‐stage preparation is performed, including washing in acetone, magnetic separation, and ball milling. The addition of 30% of grinding chips to the powder mixture allows the fabrication of dense samples.
Felix Großwendt   +4 more
wiley   +1 more source

Cross Curvature Solitons of Lorentzian Three-Dimensional Lie Groups

open access: yesAxioms
In this paper, we study left-invariant cross curvature solitons on Lorentzian three-dimensional Lie groups and classify these solitons.
Shahroud Azami   +3 more
doaj   +1 more source

On chiral differential operators over homogeneous spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We give a classification and construction of chiral algebras of differential operators over semisimple algebraic groups G and over homogeneous spaces G/N and G/P where N is a nilpotent and P a parabolic subgroup.
Vassily Gorbounov   +2 more
doaj   +1 more source

Studies on Riemannian Homogeneous Spaces [PDF]

open access: yesNagoya Mathematical Journal, 1955
The purpose of the present paper is to give the details of the results announced in the C. R. notes [7], [8] and [9].In I which corresponds to [7], we shall develop a method for the study of affine transformations of a Riemannian manifold and prove Lemma 5 which is fundamental for the results in I and II.
openaire   +2 more sources

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