Results 121 to 130 of about 12,325 (304)
Symmetric cone monotone functions and symmetric cone convex functions [PDF]
, 2013 Symmetric cone (SC) monotone functions and SC-convex functions are real scalar valued functions which induce Löwner operators associated with a simple Euclidean Jordan algebra to preserve the monotone order and convex order, respectively.
Yu-Lin Chang +2 more
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800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development
High Voltage, EarlyView.ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong +6 more
wiley +1 more source
Hypomonotonicity of the Normal Cone and Proximal Smoothness
We study the properties of the normal cone to a proximally smooth set. We give a complete characterization of a proximally smooth set through the monotonicity properties of its normal cone in an arbitrary uniformly convex and uniformly smooth Banach ...
Ivanov, Grigory M.
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Two orderings on a convex cone of nonnegative definite matrices
, 1987 Let M be a convex cone of real nonnegative definite matrices. For any M1, M2ϵ M we write M1⩾M2 or M1≽M2 if, respectively, M1-M2 or M21-M22 is n.n.d.
Stępniak, Czesʖaw
core +1 more source
Paired CycleGAN‐based virtual staining for 3D X‐ray histology of bone‐implant systems
Journal of Synchrotron Radiation, EarlyView.This work demonstrates virtual staining for 3D X‐ray histology using a modified CycleGAN trained on paired synchrotron radiation microtomography (SR‐µCT) and histology images of bone‐implant specimens. The method enables the generation of artificially coloured contrast resembling conventional histological staining from label‐free SR‐µCT data and is ...
Sarah C. Irvine +5 more
wiley +1 more source
On odd powers of nonnegative polynomials that are not sums of squares
Forum of Mathematics, SigmaWe initiate a systematic study of nonnegative polynomials P such that $P^k$ is not a sum of squares for any odd $k\geq 1$ , calling such P stubborn. We develop a new invariant of a real isolated zero of a nonnegative polynomial in the plane,
Grigoriy Blekherman +2 more
doaj +1 more source
Robust Optimization of Currency Portfolios [PDF]
We study a currency investment strategy, where we maximize the return on a portfolio of foreign currencies relative to any appreciation of the corresponding foreign exchange rates. Given the uncertainty in the estimation of the future currency values, we
Berc Rustem +3 more
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A unified analytical framework for Mössbauer synchrotron sources
Journal of Synchrotron Radiation, EarlyView.We present a unified analytical framework for Mössbauer synchrotron and X‐ray free‐electron laser sources that provides exact, rotationally invariant expressions for resonance energies and transition probabilities in mixed magnetic dipole–electric quadrupole interactions without Hamiltonian diagonalization.
Krzysztof R. Szymański
wiley +1 more source
Approximate Additive Functional Equations in Closed Convex Cone
Journal of Mathematical Extension, 2011 . In this paper, we introduce the following positive-additive functional equation in C ∗ -algebras f x + 4p4 x3y + 6√ xy + 4p4 xy3 + y = f(x) + 4f(x) 3 4 p4 f(y) + 6p f(x)f(y) + 4f(y) 3 4 p4 f(x) + f(y).
H. Azadi Kenary
doaj
Generalized convexity cones and their duals [PDF]
Pacific Journal of Mathematics, 1968 Amir, Dan, Ziegler, Zvi
openaire +2 more sources