Results 21 to 30 of about 109,235 (253)

Quantum stochastic integrals as operators [PDF]

open access: yes, 2010
We construct quantum stochastic integrals for the integrator being a martingale in a von Neumann algebra, and the integrand -- a suitable process with values in the same algebra, as densely defined operators affiliated with the algebra.
Andrzej Łuczak   +10 more
core   +1 more source

Stochastic process algebras and their markovian semantics [PDF]

open access: yesACM SIGLOG News, 2018
There is a long tradition of quantitative modelling in computer and telecommunication systems for performance evaluation and dependability analysis, dating back to the early work of Erlang on telephone exchanges at the beginning of twentieth century [Erlang 1917].
openaire   +2 more sources

Stochastic Process Algebras: From Individuals to Populations [PDF]

open access: yesThe Computer Journal, 2011
In this paper we report on progress in the use of stochastic process algebras for representing systems which contain many replications of components such as clients, servers and devices. Such systems have traditionally been difficult to analyse even when using high-level models because of the need to represent the vast range of their potential ...
Jane Hillston   +2 more
openaire   +3 more sources

Determining Causal Skeletons with Information Theory

open access: yesEntropy, 2020
Modeling a causal association as arising from a communication process between cause and effect, simplifies the discovery of causal skeletons. The communication channels enabling these communication processes, are fully characterized by stochastic tensors,
David Sigtermans
doaj   +1 more source

Complementary approaches to understanding the plant circadian clock [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
Circadian clocks are oscillatory genetic networks that help organisms adapt to the 24-hour day/night cycle. The clock of the green alga Ostreococcus tauri is the simplest plant clock discovered so far.
Ozgur E. Akman   +3 more
doaj   +1 more source

Nonstandard Hulls of C*-Algebras and Their Applications

open access: yesMathematics, 2021
For the sake of providing insight into the use of nonstandard techniques à la A. Robinson and into Luxemburg’s nonstandard hull construction, we first present nonstandard proofs of some known results about C*-algebras. Then we introduce extensions of the
Stefano Baratella
doaj   +1 more source

The random Wigner distribution of Gaussian stochastic processes with covariance in S0(ℝ2d)

open access: yesJournal of Function Spaces and Applications, 2005
The paper treats time-frequency analysis of scalar-valued zero mean Gaussian stochastic processes on ℝd. We prove that if the covariance function belongs to the Feichtinger algebra S0(ℝ2d) then: (i) the Wigner distribution and the ambiguity function of ...
Patrik Wahlberg
doaj   +1 more source

Spreadability for Quantum Stochastic Processes, with an Application to Boolean Commutation Relations

open access: yesEntropy, 2020
In order to manage spreadability for quantum stochastic processes, we study in detail the structure of the involved monoids acting on the index-set of all integers Z , that is that generated by left and right hand-side partial shifts, the monoid of ...
Vitonofrio Crismale   +2 more
doaj   +1 more source

Two different template replicators coexisting in the same protocell: stochastic simulation of an extended chemoton model. [PDF]

open access: yesPLoS ONE, 2011
The simulation of complex biochemical systems, consisting of intertwined subsystems, is a challenging task in computational biology. The complex biochemical organization of the cell is effectively modeled by the minimal cell model called chemoton ...
István Zachar   +2 more
doaj   +1 more source

Stochastic processes with Z_N symmetry and complex Virasoro representations. The partition functions [PDF]

open access: yes, 2014
In a previous Letter (J. Phys. A v.47 (2014) 212003) we have presented numerical evidence that a Hamiltonian expressed in terms of the generators of the periodic Temperley-Lieb algebra has, in the finite-size scaling limit, a spectrum given by ...
Alcaraz, Francisco C.   +2 more
core   +2 more sources

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