Results 71 to 80 of about 60,391 (204)
Symmetries of finite Heisenberg groups for multipartite systems
, 2012 A composite quantum system comprising a finite number k of subsystems which are described with position and momentum variables in Z_{n_{i}}, i=1,...,k, is considered.
Korbelar, M., Tolar, J.
core +1 more source
Functional Sieve Bootstrap for the Partial Sum Process With an Application to Change‐Point Detection
Journal of Time Series Analysis, EarlyView.ABSTRACT This article applies the functional sieve bootstrap (FSB) to estimate the distribution of the partial sum process for time series stemming from a weakly stationary functional process. Consistency of the FSB procedure under weak assumptions on the underlying functional process is established.
Efstathios Paparoditis +2 more
wiley +1 more source
Measure‐valued processes for energy markets
Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero +3 more
wiley +1 more source
How the Hilbert space of two-sided black holes factorises
Journal of High Energy PhysicsIn AdS/CFT, two-sided black holes are described by states in the tensor product of two Hilbert spaces associated with the two asymptotic boundaries of the spacetime. Understanding how such a tensor product arises from the bulk perspective is an important
Jan Boruch +3 more
doaj +1 more source
Where Mathematical Symbols Come From
Topics in Cognitive Science, EarlyView.Abstract There is a sense in which the symbols used in mathematical expressions and formulas are arbitrary. After all, arithmetic would be no different if we would replace the symbols ‘+$+$’ or ‘8’ by different symbols. Nevertheless, the shape of many mathematical symbols is in fact well motivated in practice.
Dirk Schlimm
wiley +1 more source
The shifted harmonic approximation and asymptotic SU(2) and SU(1,1) Clebsch--Gordan coefficients
, 2010 Clebsch-Gordan coefficients of SU(2) and SU(1,1) are defined as eigenfunctions of a linear operator acting on the tensor product of the Hilbert spaces for two irreps of these groups.
de Guise, Hubert, Rowe, David J
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Distinguishing multi-partite states by local measurements
, 2013 We analyze the distinguishability norm on the states of a multi-partite system, defined by local measurements. Concretely, we show that the norm associated to a tensor product of sufficiently symmetric measurements is essentially equivalent to a multi ...
A.S. Holevo +10 more
core +2 more sources
Tensor Products of Hilbert Spaces
, 2023 Given a finite or countably infinite family of Hilbert spaces \((H_j)_{j\in N} \), we study the Hilbert space tensor product \(\bigotimes_{j\in N} H_j\). In the general case, these tensor products were introduced by John von Neumann. We are especially interested in the case where each Hilbert space \(H_j\) is given as a reproducing kernel Hilbert space,
openaire
The transportation of embedded inversion in world Englishes
World Englishes, EarlyView.Abstract The present study uses private correspondence to investigate the use of embedded inversion on both sides of the Atlantic as an illustration of the spread of spoken/conversational features through writing. The paper discusses the use of embedded inversion in Irish English (IrE) and briefly compares its occurrence in other varieties of English ...
Carolina P. Amador‐Moreno
wiley +1 more source
Weak ergodicity breaking with isolated integrable sectors
Physical Review ResearchWe consider spin chain models with local Hamiltonians that display weak ergodicity breaking. In these models, the majority of the eigenstates are thermal, but there is a distinguished subspace of the Hilbert space in which ergodicity is broken.
Hosho Katsura +3 more
doaj +1 more source