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Há 1 dia · Recently, we (Synthese, 199(5–6):13247–13281, 2021) proposed Kripke-like semantics for two quantum logics of interderminacy. These logics expand the vocabulary of standard Birkhoff-von Neumann propositional quantum logic with a pair of modal operators interpreted as “it is (in)determinate that”, allowing them to express in the object language statements such as “it is indeterminate ...
Há 4 dias · We study the Campanato spaces associated with quantum Markov semigroups on a finite von Neumann algebra M. Let T = (Tt)t≥0 be a Markov semigroup, P = (Pt)t≥0 the subordinated Poisson semigroup and. α> 0. The column Campanato space Lc α(P) associated to P is defined to be the subset of M with finite norm which is given by. ∥f∥Lcα(P ...
Há 2 dias · Abstract: We generalize the notion of orbit equivalence to the non-commutative setting by introducing a new equivalence relation on groups, which we call von Neumann orbit equivalence (vNOE). We prove the stability of this equivalence relation under taking free products and graph products of groups.
Há 2 dias · Entropy in gravitational von Neumann algebras. 24.09.2024 14:00 – 15:30. Entanglement entropy in quantum field theory is UV-divergent, which makes it a challenging quantity to analyze from an algebraic perspective. In this talk, I will describe how perturbatively coupling to gravity improves this situation, resulting in a well-defined notion ...
O responsável foi Marvin Minsky, aluno da dupla daquele primeiro artigo sobre redes neurais. E em 1952, Arthur Samuel criou um jogo de damas no IBM 701 que consegue melhorar por conta própria e vira um desafio a altura de jogadores amadores. A fundação.
Há 3 dias · The problem of finding a function u(x) harmonic inside a region Ω (Δu = 0) and whose normal derivative takes given values on its boundary ∂Ω is called the interior Neumann problem or second boundary value problem (inner) for Ω.
Há 3 dias · The Hungarian-American mathematician John von Neumann (1903-1957) became the first known person to use the concept of a "singularity" in the technological context.
