Zobrazeno 1 - 10
of 4 045
pro vyhledávání: '"Van Velthoven"'
Autor:
van Velthoven, Jordy Timo
Publikováno v:
Comptes Rendus. Mathématique, Vol 360, Iss G10, Pp 1125-1134 (2022)
Let $G = N \rtimes A$, where $N$ is a graded Lie group and $A = \mathbb{R}^+$ acts on $N$ via homogeneous dilations. The quasi-regular representation $\pi = \mathrm{ind}_A^G (1)$ of $G$ can be realised to act on $L^2 (N)$. It is shown that for a clas
Externí odkaz:
https://doaj.org/article/32720974f7154d659f2b58ef06993fa9
Autor:
van Velthoven, Jordy Timo
Publikováno v:
Comptes Rendus. Mathématique, Vol 360, Iss G7, Pp 799-808 (2022)
Let $G$ be a nilpotent Lie group and let $\pi $ be a coherent state representation of $G$. The interplay between the cyclicity of the restriction $\pi |_{\Gamma }$ to a lattice $\Gamma \le G$ and the completeness of subsystems of coherent states base
Externí odkaz:
https://doaj.org/article/ef49e7c6500e4f7abc4d273c1f702e8f
We provide a characterization of two expansive dilation matrices yielding equal discrete anisotropic Triebel-Lizorkin spaces. For two such matrices $A$ and $B$, it is shown that $\dot{\mathbf{f}}^{\alpha}_{p,q}(A) = \dot{\mathbf{f}}^{\alpha}_{p,q}(B)
Externí odkaz:
http://arxiv.org/abs/2409.01849
We study the existence of certain characteristically nilpotent Lie algebras with flat coadjoint orbits. Their connected, simply connected Lie groups admit square-integrable representations modulo the center. There are many examples of nilpotent Lie g
Externí odkaz:
http://arxiv.org/abs/2408.10660
Autor:
Stephanie Du Four, Jorn Van Der Veken, Johnny Duerinck, Elle Vermeulen, Corina E. Andreescu, Michael Bruneau, Bart Neyns, Van Velthoven, Brigitte Velkeniers
Publikováno v:
Frontiers in Endocrinology, Vol 13 (2022)
Although pituitary adenomas (PAs) account for 15% of intracranial tumors, pituitary carcinomas (PCs) are a rare entity. Most commonly, PCs evolve from aggressive PAs invading the surrounding structures and eventually leading to metastatic lesions. Du
Externí odkaz:
https://doaj.org/article/fe4f5fc21ca5450e8aafab916cec6aa0
We prove various estimates for the asymptotics of counting functions associated to point sets of coherent frames and Riesz sequences. The obtained results recover the necessary density conditions for coherent frames and Riesz sequences for general un
Externí odkaz:
http://arxiv.org/abs/2407.13540
For an exponential Lie group $G$ and an irreducible unitary representation $(\pi,\mathcal{H}_{\pi})$ of $G$, we consider the natural action defined by $\pi$ on the projective space of $\mathcal{H}_{\pi}$, and show that the stabilisers of this action
Externí odkaz:
http://arxiv.org/abs/2402.09826
Autor:
Wu, Qiong, Huang, Yiwen, Liao, Zijun, van Velthoven, Michelle Helena, Wang, Wei, Zhang, Yanfeng
Publikováno v:
Journal of Medical Internet Research, Vol 22, Iss 12, p e23273 (2020)
BackgroundThe benefits of breastfeeding for both infants and mothers have been well recognized. However, the exclusive breastfeeding rate in China is low and decreasing. Mobile technologies have rapidly developed; communication apps such as WeChat (o
Externí odkaz:
https://doaj.org/article/8c7add22261e49f0aadff2d0d4c7e832
Publikováno v:
JMIR Research Protocols, Vol 9, Iss 12, p e17005 (2020)
BackgroundAdvanced therapies, including cell and gene therapies, have shown therapeutic promise in curing life-threatening diseases, such as leukemia and lymphoma. However, these therapies can be complicated and expensive to deliver due to their sens
Externí odkaz:
https://doaj.org/article/e6c533d30f9745a6969924411c61ee10
Publikováno v:
JMIR Research Protocols, Vol 9, Iss 9, p e17685 (2020)
BackgroundObesity is a contributing factor for many noncommunicable diseases and a growing problem worldwide. Many mobile apps have been developed to help users improve their fitness and weight management behaviors. However, the speed at which apps a
Externí odkaz:
https://doaj.org/article/577aca4c52394f4884b6f5ba6293b667