The Brown measure of the sum of a self-adjoint element and an imaginary multiple of a semicircular element [PDF]
Letters in Mathematical Physics, 2022 50 pages and 9 figures. Minor revisions in this version.
Brian C. Hall, Ching-Wei Ho
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A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements
Sensors, 2020 A printed edge-fed counterpart of the wire Bruce array antenna, for frequency scanning applications, is presented in this paper. The unit-cell of the proposed antenna consists of bowtie and semi-circular elements to achieve wide bandwidth from below 22 ...
Zeeshan Ahmed +2 more
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On the enigma of Palaenigma wrangeli (Schmidt), a conulariid with a partly non-mineralized skeleton [PDF]
PeerJ, 2021 Palaenigma wrangeli (Schmidt) is a finger-sized fossil with a tetraradiate conical skeleton; it occurs as a rare component in fossiliferous Upper Ordovician strata of the eastern Baltic Basin and is known exclusively from north Estonia.
Björn Kröger +5 more
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A Note on Rate of Convergence in Probability to Semicircular Law [PDF]
, 2011 In the present paper, we prove that under the assumption of the finite sixth moment for elements of a Wigner matrix, the convergence rate of its empirical spectral distribution to the Wigner semicircular law in probability is $O(n^{-1/2})$ when the ...
Bai, Zhidong +3 more
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Semicircular Patch-Embedded Vivaldi Antenna for Miniaturized UWB Radar Sensors
Sensors, 2020 A microstrip-to-slot line-fed miniaturized Vivaldi antenna using semicircular patch embedment is proposed in this study. The conventional Vivaldi antenna has ultrawide bandwidth, but suffers from low gain in the low-frequency band.
Jungwoo Seo, Jae Hee Kim, Jungsuek Oh
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First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina) [PDF]
, 2017 In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica.
Albino, Adriana Maria +3 more
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Engineering Science and Technology, an International Journal, 2022 Oil-based nanofluids are used to strengthen the stability of nanofluids as well as their thermophysical properties when they are exposed to high temperatures.
Rumman Hossain +3 more
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Immittance Spectroscopy of Smart Components and Novel Devices [PDF]
, 1994 AC small-signal immittance spectroscopy is employed as a viable tool to demonstrate electrical characterization, performance improvement, and quality assurance issues of smart materials-based components and novel devices. The variation in the ac response,
Alim, Mohammad Anwarul +2 more
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Operator-valued Semicircular Elements: Solving A Quadratic Matrix Equation with Positivity Constraints [PDF]
International Mathematics Research Notices, 2007 We show that the quadratic matrix equation $VW + (W)W = I$, for given $V$ with positive real part and given analytic mapping $ $ with some positivity preserving properties, has exactly one solution $W$ with positive real part. We point out the relevance of this result in the context of operator-valued free probability theory and for the ...
Helton, J. William +2 more
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Primes in Intervals and Semicircular Elements Induced by p-Adic Number Fields
Mathematics, 2019 In this paper, we study free probability on (weighted-)semicircular elements in a certain Banach *-probability space ( LS , τ 0 ) induced by measurable functions on p-adic number fields Q p over primes p .
Ilwoo Cho, Palle Jorgensen
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