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91.
Sven Glaser 《随机分析与应用》2015,33(1):1-20
We prove a law of large numbers for the power variation of an integrated fractional process in a pure jump model. This yields consistency of an estimator for the integrated volatility where we are no longer restricted to a Gaussian model. 相似文献
92.
In this paper, we establish a set of necessary optimality conditions and discuss a fairly large number of sets of global nonparametric sufficient optimality criteria under various generalized (η, ρ)-invexity assumptions for a minmax fractional programming problem with infinitely many nonlinear inequality and equality constraints. 相似文献
93.
94.
The paper is concerned with the higher order nonlinear neutral delay differential equation
95.
In an earlier article we characterized, from the viewpoint of set theory, those closure operators for which the classical result of Birkhoff and Frink, stating the equivalence between algebraic closure spaces, subalgebra lattices and algebraic lattices, holds in a many‐sorted setting. In the present article we investigate, from the standpoint of category theory, the form these equivalences take when the adequate morphisms of the several different species of structures implicated in them are also taken into account. Specifically, our main aim is to provide a functorial rendering of the Birkhoff‐Frink representation theorems for both single‐sorted algebras and many‐sorted algebras, by defining the appropriate categories and functors, covariant and contravariant, involved in the process (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
96.
Jiafa Xu Zhongli Wei Donal O Regan Donal O''Regan Yujun Cui 《Journal of Applied Analysis & Computation》2019,9(3):1165-1182
In this paper using fountain theorems we study the existence of infinitely many solutions for fractional Schr\"{o}dinger-Maxwell equations
\[\begin{cases}
(-\Delta)^\alpha u+\lambda V(x)u+\phi u=f(x,u)-\mu g(x)|u|^{q-2}u, \text{ in } \mathbb R^3,\(-\Delta)^\alpha \phi=K_\alpha u^2, \text{ in } \mathbb R^3,
\end{cases}\]
where $\lambda,\mu >0$ are two parameters, $\alpha\in (0,1]$, $K_\alpha=\frac{\pi^{-\alpha}\Gamma(\alpha)}{\pi^{-(3-2\alpha)/2}\Gamma((3-2\alpha)/2)}$ and $(-\Delta)^\alpha$ is the fractional Laplacian. Under appropriate assumptions on $f$ and $g$ we obtain an existence theorem for this system. 相似文献
97.
Yasuhito Miyamoto 《Journal of Differential Equations》2018,264(4):2684-2707
We study radial solutions of the semilinear elliptic equation under rather general growth conditions on f. We construct a radial singular solution and study the intersection number between the singular solution and a regular solution. An application to bifurcation problems of elliptic Dirichlet problems is given. To this end, we derive a certain limit equation from the original equation at infinity, using a generalized similarity transformation. Through a generalized Cole–Hopf transformation, all the limit equations can be reduced into two typical cases, i.e., and . 相似文献
98.
A. van Otterlo D.S. Golubev A.D. Zaikin G. Blatter 《The European Physical Journal B - Condensed Matter and Complex Systems》1999,10(1):131-143
We derive the effective dynamical theory for BCS superconductors, based on the effective action formalism. Both the metallic
regime and the superconducting regime are studied in the clean and dirty limit. The full electrodynamics of the problem is formulated in a manifestly gauge-invariant
and transparent way. Furthermore, we consider the effect of particle-hole asymmetry in the band structure, and discuss its
consequences for vortex dynamics and the topological term in the effective action. The effective action is the starting point
for treating (quantum-) dynamical problems involving BCS superconductors.
Received 23 November 1998 相似文献
99.
100.
M. Jiménez-Sevilla L. Sánchez-González 《Journal of Mathematical Analysis and Applications》2010,365(1):315-319
In this note we construct a C∞-smooth, LFC (Locally depending on Finitely many Coordinates) bump function, in every separable Banach space admitting a continuous, LFC bump function. 相似文献