NTIS - Nové technologie pro informační společnost / NTIS - New technologies for the Information Society

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Recent Submissions

Bobkov, Vladimír , Takáč, Peter
On maximum and comparison principles for parabolic problems with the p-Laplacian

We investigate strong and weak versions of maximum and comparison principles for a class of quasilinear parabolic equations with the p-Laplacian ∂tu−Δpu=λ|u|p−2u+f(x,t) under zero boundary and nonnegative initial conditions on a bounded cylindrical domain Ω×(0,T), λ∈R, and f∈L∞(Ω×(0,T)). Several relat...

Hynčík, Luděk , Bońkowski, Tomasz
Helmet to head coupling by multi-body system

Jiřík, Miroslav , Lukeš, Vladimír , Železný, Miloš , Liška, Václav
Multiscale Graph-Cut for 3D Segmentation of Compact Objects

The article is a step forward towards improving image segmentation using a popular method called Graph-Cut. We focus on optimizing the algorithm for processing data, in which the target object occupies only a small portion of the total volume. We propose a twostep procedure. A...

Radtke, Susanne , Noack, Benjamin , Hanebeck, Uve D. , Straka, Ondřej
Reconstruction of Cross-Correlations with Constant Number of Deterministic Samples

Optimal fusion of estimates that are computed in a distributed fashion is a challenging task. In general, the sensor nodes cannot keep track of the cross-correlations required to fuse estimates optimally. In this paper, a novel technique is presented that provides the means to ...

Bobkov, Vladimír
Asymptotic relation for zeros of cross-product of Bessel functions and applications

Let $a_{\nu,k}$ be the $k$-th positive zero of the cross-product of Bessel functions $J_\nu(R z) Y_\nu(z) - J_\nu(z) Y_\nu(R z)$, where $\nu\geq 0$ and $R>1$. We derive an initial value problem for a first order differential equation whose solution $\alpha(x)...