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pro vyhledávání: '"Pinto, P R"'
We give an explicit injective representation of the universal $\mathrm{C}^\ast$-algebra that is generated by doubly non-commuting isometries. This injectivity allows us to prove that such universal algebras embed naturally into each other and also, w
Externí odkaz:
http://arxiv.org/abs/2412.06422
Autor:
Harti, Rachid El, Pinto, Paulo R.
We show that the Banach *-algebra $\ell^1(G,A,\alpha)$, arising from a C*-dynamical system $(A,G,\alpha)$, is an hermitian Banach algebra if the discrete group $G$ is finite or abelian (or more generally, a finite extension of a nilpotent group). As
Externí odkaz:
http://arxiv.org/abs/2408.11466
We use low-redshift background cosmology data to place quantitative constraints on three separate modified gravity models, each of which aims to explain the low-redshift acceleration through a different physical mechanism. The Lifshitz cosmology is e
Externí odkaz:
http://arxiv.org/abs/2304.02522
Publikováno v:
Soft Matter, 2023,19, 3652-3660
We investigate the local fluctuations of filamentous actin (F-actin), with focus on the skeletal thin filament, using single-particle optical trapping interferometry. This experimental technique allows us to detect the Brownian motion of a tracer bea
Externí odkaz:
http://arxiv.org/abs/2209.07159
We study the high-frequency micro-mechanical response of suspensions composed by cardiac and skeletal muscle myosin by optical trapping interferometry. We observe that in low ionic strength solutions upon the addition of magnesium adenosine triphosph
Externí odkaz:
http://arxiv.org/abs/2209.07160
We describe Markov interval maps via branching systems and develop the theory of relative branching systems, characterizing when the associated representations of relative graph C*-algebras are faithful. When the Markov interval maps $f$ have escape
Externí odkaz:
http://arxiv.org/abs/2206.09014
Autor:
Araújo, Francisco, Pinto, Paulo R.
Every representation of the Cuntz algebra $\mathcal{O}_n$ leads to a unitary representation of the Higman-Thompson group $V_n$. We consider the family $\{\pi_x\}_{x\in [0,1[}$ of permutative representations of $\mathcal{O}_n$ that arise from the inte
Externí odkaz:
http://arxiv.org/abs/2011.13679
Characterizing the melting behaviour of monometallic nanoparticles is a great challenge from both the experimental and the theoretical point of view. To this end, we disclose a universal signature based on the cluster's pair distribution function, a
Externí odkaz:
http://arxiv.org/abs/2007.12218
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