Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Duc-Tho Nguyen"'
We study the two-dimensional magnetic Laplacian when the magnetic field is allowed to be complex-valued. Under the assumption that the imaginary part of the magnetic potential is relatively form-bounded with respect to the real part of the magnetic L
Externí odkaz:
http://arxiv.org/abs/2410.01377
In this paper we present a complete spectral analysis of Dirac operators with non-Hermitian matrix potentials of the form $i\operatorname{sgn}(x)+V(x)$ where $V\in L^1$. For $V=0$ we compute explicitly the matrix Green function. This allows us to det
Externí odkaz:
http://arxiv.org/abs/2409.06480
Graph-based Light Field coding using the concept of super-rays is powerful to exploit signal redundancy along irregular shapes and achieves good energy compaction, compared to rectangular block -based approaches. However, its main limitation lies in
Externí odkaz:
http://arxiv.org/abs/2312.05848
Autor:
Duc, Tho Nguyen
The purpose of this article is to study pseudospectral properties of the one-dimensional Schr\"{o}dinger operator perturbed by a complex steplike potential. By constructing the resolvent kernel, we show that the pseudospectrum of this operator is tri
Externí odkaz:
http://arxiv.org/abs/2310.15056
In Light Field compression, graph-based coding is powerful to exploit signal redundancy along irregular shapes and obtains good energy compaction. However, apart from high time complexity to process high dimensional graphs, their graph construction m
Externí odkaz:
http://arxiv.org/abs/2206.04328
360-degree streaming videos can provide a rich immersive experiences to the users. However, it requires an extremely high bandwidth network. One of the common solutions for saving bandwidth consumption is to stream only a portion of video covered by
Externí odkaz:
http://arxiv.org/abs/2206.02367
Autor:
Duc, Tho Nguyen
This article is devoted to the construction of pseudomodes of one-dimensional biharmonic operators with the complex-valued potentials via the WKB method. As a by-product, the shape of pseudospectrum near infinity can be described. This is a newly dis
Externí odkaz:
http://arxiv.org/abs/2201.03305
Autor:
Krejcirik, David, Duc, Tho Nguyen
Publikováno v:
J. Funct. Anal. 282 (2022) 109440
Depending on the behaviour of the complex-valued electromagnetic potential in the neighbourhood of infinity, pseudomodes of one-dimensional Dirac operators corresponding to large pseudoeigenvalues are constructed. This is a first systematic non-semi-
Externí odkaz:
http://arxiv.org/abs/2011.09433
Continuous QoE prediction is crucial in the purpose of maximizing viewer satisfaction, by which video service providers could improve the revenue. Continuously predicting QoE is challenging since it requires QoE models that are capable of capturing t
Externí odkaz:
http://arxiv.org/abs/2003.09249
Publikováno v:
IEEE Access 2020
In video streaming services, predicting the continuous user's quality of experience (QoE) plays a crucial role in delivering high quality streaming contents to the user. However, the complexity caused by the temporal dependencies in QoE data and the
Externí odkaz:
http://arxiv.org/abs/2003.08574