Results 61 to 70 of about 5,162,686 (175)
Marchenko–Pastur Laws for Daniell Smoothed Periodograms
Journal of Time Series Analysis, EarlyView.ABSTRACT Given a sample X0,…,Xn−1$$ {X}_0,\dots, {X}_{n-1} $$ from a d$$ d $$‐dimensional stationary time series (Xt)t∈ℤ$$ {\left({X}_t\right)}_{t\in \mathbb{Z}} $$, the most commonly used estimator for the spectral density matrix F(θ)$$ F\left(\theta \right) $$ at a given frequency θ∈[0,2π)$$ \theta \in \left[0,2\pi \right) $$ is the Daniell smoothed ...
Ben Deitmar
wiley +1 more source
Universal modular properties of generalized Gibbs ensembles and chiral deformations
Journal of High Energy PhysicsWe study modular properties of conformal field theories perturbed by holomorphic fields. We prove an asymptotic formula for the modular S-transform of a generalized partition function that includes zero modes of higher spin holomorphic currents.
Sujay K. Ashok +3 more
doaj +1 more source
Volterra composition operators from generalized weighted weighted Bergman spaces to µ-Bloch spaces
Journal of Function Spaces and Applications, 2009 Let φ be a holomorphic self-map and g be a fixed holomorphic function on the unit ball B. The boundedness and compactness of the operator Tg,φf(z)=∫01f(φ(tz))ℜg(tz)dtt from the generalized weighted Bergman space into the µ-Bloch space are studied in this
Xiangling Zhu
doaj +1 more source
Holomorphic Embedding Based Continuation Method for Identifying Multiple Power Flow Solutions
IEEE Access, 2019 In this paper, we propose an efficient continuation method for locating multiple power flow solutions. We adopt the holomorphic embedding technique to represent solution curves as holomorphic functions in the complex plane.
Dan Wu, Bin Wang
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Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT In this work, novel electrostatic aspects of sharp cracks in brittle dielectrics are discussed using the example of an impermeable Griffith crack in an infinite linear isotropic dielectric plate. On the one hand, electrostatic force densities stemming from the Maxwell stress tensor according to Lorentz are derived mathematically, where the ...
Lennart Behlen +2 more
wiley +1 more source
Equivariant affine line bundles and linearization [PDF]
, 1996 We show that every algebraic action of a linearly reductive group on affine n-space C^n which is given by Jonqui`ere automorphisms is linearizable. Similarly, every holomorphic action of a compact group K by (holomorphic) Jonquière automorphisms is ...
Frank Kutzschebauch +3 more
core
An Entire Holomorphic Function Associated to an Entire Harmonic Function [PDF]
, 1999 Let h be a harmonic function on RN. Then there exists a holomorphic function f on C such that f(t)=h(t, 0, …, 0) for all real t. Precise inequalities relating the growth rate of f to that of h are proved.
Armitage, D.H.
core +1 more source
Ideal topological flat bands in chiral symmetric moiré systems from non-holomorphic functions
Nature CommunicationsRecent studies on topological flat bands and their fractional states have revealed increasing similarities between moiré flat bands and Landau levels (LLs). For instance, like the lowest LL, topological exact flat bands with ideal quantum geometry can be
Siddhartha Sarkar +3 more
doaj +1 more source
Integral-Type Operators from Bloch-Type Spaces to QK Spaces
Abstract and Applied Analysis, 2011 The boundedness and compactness of the integral-type operator Iφ,g(n)f(z)=∫0zf(n)(φ(ζ))g(ζ)dζ, where n∈N0, φ is a holomorphic self-map of the unit disk D, and g is a holomorphic function on D, from α-Bloch spaces to QK spaces are characterized.
Stevo Stević, Ajay K. Sharma
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A heterotic Kodaira-Spencer theory at one-loop
Journal of High Energy Physics, 2023 We consider a heterotic version of six-dimensional Kodaira-Spencer gravity derived from the heterotic superpotential. We compute the one-loop partition function and find it can be expressed as a product of holomorphic Ray-Singer torsions.
Anthony Ashmore +6 more
doaj +1 more source