Zobrazeno 1 - 10
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pro vyhledávání: '"Gheondea, Aurelian"'
Autor:
Gheondea, Aurelian, Tilki, Cankat
We prove a few representer theorems for a localised version of the regularised and multiview support vector machine learning problem introduced by H.Q. Minh, L. Bazzani, and V. Murino, Journal of Machine Learning Research, 17(2016) 1-72, that involve
Externí odkaz:
http://arxiv.org/abs/2304.05655
Autor:
Gheondea, Aurelian, Udrea, Bogdan
Motivated by Cuntz-Krieger-Toeplitz systems associated to undirected graphs and representations of groupoids, we obtain a generalisation of the Sz-Nagy's Dilation Theorem for operator valued partially positive semidefinite maps on $*$-semigroupoids w
Externí odkaz:
http://arxiv.org/abs/2302.13107
Autor:
Aydin, Ata Deniz, Gheondea, Aurelian
Publikováno v:
Journal of Function Spaces, vol. 2021, Article ID 6617774, 2021
We find probability error bounds for approximations of functions $f$ in a separable reproducing kernel Hilbert space $\mathcal{H}$ with reproducing kernel $K$ on a base space $X$, firstly in terms of finite linear combinations of functions of type $K
Externí odkaz:
http://arxiv.org/abs/2003.12801
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Autor:
Cojuhari, Petru, Gheondea, Aurelian
We compare the concept of triplet of closely embedded Hilbert spaces with that of generalised triplet of Hilbert spaces in the sense of Berezanskii by showing when they coincide, when they are different, and when starting from one of them one can nat
Externí odkaz:
http://arxiv.org/abs/1911.03460
We give an explicit and versatile parametrization of all positive selfadjoint extensions of a densely defined, closed, positive operator. In addition, we identify the Friedrichs extension by specifying the parameter to which it corresponds. This is a
Externí odkaz:
http://arxiv.org/abs/1807.05363
Autor:
Ay, Serdar, Gheondea, Aurelian
We consider weakly positive semidefinite kernels valued in ordered $*$-spaces with or without certain topological properties, and investigate their linearisations (Kolmogorov decompositions) as well as their reproducing kernel spaces. The spaces of r
Externí odkaz:
http://arxiv.org/abs/1701.04740
Autor:
Gheondea, Aurelian, Udrea, Bogdan
Publikováno v:
Integral Equations & Operator Theory; Sep2024, Vol. 96 Issue 3, p1-48, 48p
Autor:
Gheondea, Aurelian
We show that some abstract results on propagation of fixed points for completely positive maps on $C^*$-algebras provide a natural approach to unify recent Noether type theorems on the equivalence of symmetries with conservation laws for dynamical sy
Externí odkaz:
http://arxiv.org/abs/1611.04742