Results 61 to 70 of about 248,546 (297)

Lp estimates for maximal functions along surfaces of revolution on product spaces

open access: yesOpen Mathematics, 2019
This paper is concerned with establishing Lp estimates for a class of maximal operators associated to surfaces of revolution with kernels in Lq(Sn−1 × Sm−1), q > 1.
Ali Mohammed, Reyyashi Musa
doaj   +1 more source

Marcinkiewicz Integrals With Rough Kernels onLp(1≤p≤2) [PDF]

open access: yes, 1999
We prove that for dimension ≥3, the generalized Marcinkiewicz integral with certain rough kernels is bounded onLp(Rn ...
Rim, Kyung Soo
core   +1 more source

Autonomous Multi‐Objective Nanoscale Characterization of Combinatorial (Al, Sc, B)N Films Reveals Composition‐Dependent Ferroelectric Regimes

open access: yesAdvanced Functional Materials, EarlyView.
Autonomous scanning probe microscopy and multi‐objective Bayesian optimization navigate a ternary (Al,Sc,B)N combinatorial library. Registered photoluminescence, electron‐probe compositional mapping, and X‐ray diffraction connect local electromechanical function to defect‐sensitive emission, composition, and crystal structure.
Yu Liu   +12 more
wiley   +1 more source

Kernel-based fuzzy-rough nearest neighbour classification [PDF]

open access: yes2011 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2011), 2011
Fuzzy-rough sets play an important role in dealing with imprecision and uncertainty for discrete and real-valued or noisy data. However, there are some problems associated with the approach from both theoretical and practical viewpoints. These problems have motivated the hybridisation of fuzzy-rough sets with kernel methods.
Yanpeng Qu   +4 more
openaire   +2 more sources

Lp boundedness for Littlewood–Paley operators with rough variable kernels [PDF]

open access: yes, 2011
In this paper the authors give the Lp(Rn) boundedness of Littlewood–Paley operators with rough variable kernels, which is a substantial improvement and extension of some known ...
Yong, Ding   +3 more
core   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio   +7 more
wiley   +1 more source

-Boundedness of Marcinkiewicz Integrals along Surfaces with Variable Kernels: Another Sufficient Condition

open access: yesJournal of Inequalities and Applications, 2007
We give the estimates for the Marcinkiewicz integral with rough variable kernels associated to surfaces. More precisely, we give some other sufficient conditions which are different from the conditions known before to warrant that the -boundedness ...
Yabuta Kôzô, Xue Qingying
doaj  

Boundedness of Rough Multiple Oscillatory Singular Integral Operators on Triebel–Lizorkin Space

open access: yesMathematics
In this article, we investigate oscillatory singular integral operators on product domains. We establish the boundedness of these operators on Triebel–Lizorkin spaces under weak assumptions on the rough kernel functions.
Mohammed Ali, Hussain Al-Qassem
doaj   +1 more source

Weighted Estimates for Rough Maximal Functions with Applications to Angular Integrability

open access: yesJournal of Function Spaces, 2019
In this note we establish certain weighted estimates for a class of maximal functions with rough kernels along “polynomial curves” on Rn. As applications, we obtain the bounds of the above operators on the mixed radial-angular spaces, on the vector ...
Feng Liu, Fangfang Xu
doaj   +1 more source

First record of a white rough-toothed dolphin (Steno bredanensis) off West Africa including notes on rough-toothed dolphin surface behaviour [PDF]

open access: yes, 2010
In June 2009, a white rough-toothed dolphin (Steno bredanensis) calf was photographed in a group of at least 50 dolphins in the southern Gulf of Guinea, 95 nauticol miles off the Gabon coast (01°45'S 007°29'E), West Africa. Reports of unusually pigmented
de Boer, M.N.   +2 more
core   +1 more source

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