Results 61 to 70 of about 5,150,775 (195)

Subharmonic behavior of phospholipid-coated ultrasound contrast agent microbubbles. [PDF]

open access: yes, 2010
International audienceCoated microbubbles, unlike tissue are able to scatter sound subharmonically. Therefore, the subharmonic behavior of coated microbubbles can be used to enhance the contrast in ultrasound contrast imaging.
Michel Versluis   +33 more
core   +2 more sources

Superposed One-Mode Subharmonic Generators

open access: yes, 2011
We study the squeezing and statistical properties of the light produced by one-mode subharmonic generators. We first obtain c-number Langevin equations with the aid of the master equation for a one-mode subharmonic generator.
Dessalegne, Adamu
core   +1 more source

Integral characteristics and distribution of roots of entire functions

open access: yesВестник Самарского университета: Естественнонаучная серия
We establish new relationships between the distribution of roots of entire functions and certain integral characteristics of the logarithms of the modules of these entire functions. These integral characteristics are constructed on the basis of arbitrary
E. B. Menshikova, B. N. Khabibullin
doaj   +1 more source

The exterior Dirichlet problem for the homogeneous complex k-Hessian equation

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we consider the homogeneous complex kk-Hessian equation in an exterior domain Cn⧹Ω{{\mathbb{C}}}^{n}\setminus \Omega . We prove the existence and uniqueness of the C1,1{C}^{1,1} solution by constructing approximating solutions.
Gao Zhenghuan, Ma Xinan, Zhang Dekai
doaj   +1 more source

Minimal subharmonic functions and related integral representations [PDF]

open access: yes, 2023
A Choquet-type integral representation result for non-negative subharmonic functions of a one-dimensional regular diffusion is established. The representation allows in particular an integral equation for strictly positive subharmonic functions that is ...
Çetin, Umut
core   +1 more source

Complex resonance, bifurcations, and multistability of attractors induced in a gyroscope model by time-periodic phase-modulation [PDF]

open access: yesAIP Advances
The rich nonlinear dynamics of a time-periodic phase-modulated gyroscope oscillator is explored using analytic perturbation methods and numerical bifurcation analysis.
O. T. Kolebaje   +3 more
doaj   +1 more source

Approximation by (Pluri) Subharmonic Functions: Fusion and Localization

open access: yes, 1992
Let u1 and u2 be subharmonic (plurisubharmonic) on overlapping sets K1 and K2 respectively. We seek to approximate u1 and u2 simultaneously by a single subharmonic (plurisubharmonic) function u.
P.M. Gauthier
core   +1 more source

On delta $m$-subharmonic functions

open access: yesAnnales Polonici Mathematici, 2016
Let \(\Omega\subset \mathbb C^n\) be a bounded \(m\)-hyperconvex domain, i.e, a domain for which there exists a bounded \(m\)-subharmonic exhaustion function, and assume \(1\leq m\leq n\). Let \(\mathcal E_{0,m}\) be the class of bounded \(m\)-subharmonic functions \(u\) in \(\Omega\) with zero boundary values and with bounded total \(m\)-Hessian mass \
openaire   +3 more sources

Estimations for subharmonic functions and subharmonic differences

open access: yes, 1992
The paper is aimed at the construction of lower asymptotical estimations for subharmonic functions and upper asymptotical estimations for subharmonic differences.
Urtenov Nauruz Suleimanovich
core  

Variation of Subharmonic Function under Transformation of its Riesz Measure

open access: yes, 2007
The paper combines two aspects. First, it contains a compressed com- parative review of the well-known results on the change of growth of entire (subharmonic resp.) function under the shifts of its zeros (under T-shift of its Riesz measure resp.).
Kudasheva, E.G., Khabibullin, B.N.
core  

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