Results 41 to 50 of about 4,759 (244)
Quarticity and other functionals of volatility: Efficient estimation
The Annals of Statistics, 2013 We consider a multidimensional Ito semimartingale regularly sampled on [0,t] at high frequency $1/Δ_n$, with $Δ_n$ going to zero. The goal of this paper is to provide an estimator for the integral over [0,t] of a given function of the volatility matrix.
Jacod, Jean, Rosenbaum, Mathieu
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Fuzzy Stability of an Additive-Quadratic-Quartic Functional Equation [PDF]
Journal of Inequalities and Applications, 2010 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamadi M +4 more
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Quartic Poisson algebras and quartic associative algebras and realizations as deformed oscillator algebras [PDF]
, 2013 We introduce the most general quartic Poisson algebra generated by a second and a fourth order integral of motion of a 2D superintegrable classical system.
Ian Marquette, Marquette, Ian
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Journal of MathematicsIn the current study, we introduce a system of functional equations (FEs) deriving from the mixed type additive–quadratic and the mixed-type cubic–quartic FEs which describes a multimixed additive–quadratic–cubic–quartic mapping.
Siriluk Donganont, Abasalt Bodaghi
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A Perspective on Interactive Theorem Provers in Physics
Advanced Science, EarlyView.Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley +1 more source
Intelligent Reflecting Surface-Assisted Dual-Function Radar-Communication System
IEEE Access, 2023 We consider the design of a Dual-Function Radar-Communication (DFRC) system, aided by an Intelligent Reflecting Surface (IRS). The radar precoding matrix and IRS parameters are optimized to maximize the weighted sum of the signal-to-noise ratio (SNR) at ...
Yi-Kai Li, Athina P. Petropulu
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Axioms, 2021 A class of definite integrals involving a quotient function with a reducible polynomial, logarithm and nested logarithm functions are derived with a possible connection to contact problems for a wedge.
Robert Reynolds, Allan Stauffer
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On Quartic Transformational High Dimensional Model Representation [PDF]
, 2011 International Conference on Numerical Analysis and Applied Mathematics (ICNAAM) -- SEP 19-25, 2011 -- Halkidiki, GREECEThis work focuses on the development of a multivariate function approximating method by using quartic Transformational High Dimensional
Şen, Erdoğan
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Twists of the Burkhardt Quartic Threefold
, 2022 We study twists of the Burkhardt quartic threefold over non-algebraically closed base fields of characteristic different from 2,3,5. We show they all admit quartic models in projective four-space.
Bruin, Nils, Filatov, Eugene
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Advanced Electronic Materials, EarlyView.Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera +9 more
wiley +1 more source