Results 71 to 80 of about 858 (208)

Qubit‐Efficient Quantum Local Search for Combinatorial Optimization

Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.
We introduce a qubit‐efficient variational quantum algorithm for combinatorial optimization that adaptively uses from logarithmic to a linear number of qubits to implement quantum local search. The method encodes flip probabilities of spin groups into quantum amplitudes, enabling exploration of classically intractable neighborhoods while maintaining ...
Mikhail Podobrii, Viacheslav Kuzmin, Vladimir Voloshinov, Margarita Veshchezerova, Michael R. Perelshtein   +4 more
wiley   +1 more source

Direct Summand of Serial Modules

European Journal of Pure and Applied Mathematics
Let R be an associative ring and M a unitary left R-module. An R-module M is said to be uniserial if its submodules are linearly ordered by inclusion. A serial module is a direct sum of uniserial modules. In this paper, we bring our modest contribution to the open problem listed in the book of Alberto Facchini "Module Theory" which states that is any ...
Alhousseynou BA, Mankagna A. Diompy, Andre S. Diabang   +2 more
openaire   +1 more source

Simulating Quantum State Transfer Between Distributed Devices Using Noisy Interconnects

Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.
Noisy connections challenge future networked quantum computers. This work presents a practical method to address this by simulating an ideal state transfer over noisy interconnects. The approach reduces the high sampling cost of previous methods, an advantage that improves as interconnect quality gets better.
Marvin Bechtold, Johanna Barzen, Frank Leymann, Alexander Mandl   +3 more
wiley   +1 more source

Equivariant Ehrhart theory of hypersimplices

Forum of Mathematics, Sigma
We study the hypersimplex under the action of the symmetric group $S_n$ by coordinate permutation. We prove that its equivariant volume, given by the evaluation of its equivariant $H^*$ -series at $1$ , is the permutation character of ...
Oliver Clarke, Max Kölbl
doaj   +1 more source

Nonidentifiability of Within‐Cluster Dependence Parameters in Analytic Survey Inference

WIREs Computational Statistics, Volume 18, Issue 1, March 2026.
Superpopulation parameter pairs with equiprobable observed‐outcome probabilities in Example 1. If only the nonrandom inclusion weights were known, along with the sampled data, all the red plotted points (each with its own sampling‐mechanism parameter values) yield equal likelihoods.
Eric V. Slud
wiley   +1 more source

The Hubble tension from the standpoint of quantum cosmology

European Physical Journal C: Particles and Fields
The Hubble tension is analyzed in the framework of quantum cosmological approach. It is found that there arises a new summand in the expression for the total energy density stipulated by the quantum Bohm potential.
V. E. Kuzmichev, V. V. Kuzmichev
doaj   +1 more source

On isomorphism of minimal direct summands

Hokkaido Mathematical Journal, 1994
A subgroup \(A\) of a \(p\)-primary abelian group \(G\) is purifiable if there is a minimal pure subgroup of \(G\) containing \(A\). A given subgroup may or may not possess a pure hull. The paper is concerned with generalizations of ``purifiable''. A subgroup \(A\) is almost-dense in \(G\) if every pure subgroup containing \(A\) is dense in \(G\) (in ...
openaire   +3 more sources

Extreme‐weather risk and the cross‐section of stock returns

Journal of Risk and Insurance, Volume 93, Issue 1, Page 163-198, March 2026.
Abstract We document an extreme‐weather risk premium in the cross‐section of stock returns. Between 1995 and 2019, stocks of domestic U.S. firms with the most negative sensitivity to aggregate storm losses earned an annual excess‐return spread of more than 6 percentage points relative to those with the most positive sensitivity, a difference not ...
Alexander Braun, Julia Braun, Florian Weigert   +2 more
wiley   +1 more source

On goodness‐of‐fit testing for self‐exciting point processes

Scandinavian Journal of Statistics, Volume 53, Issue 1, Page 102-139, March 2026.
Abstract Despite the wide usage of parametric point processes in theory and applications, a sound goodness‐of‐fit procedure to test whether a given parametric model is appropriate for data coming from a self‐exciting point process has been missing in the literature.
José Carlos Fontanesi Kling, Mathias Vetter   +1 more
wiley   +1 more source

On Viazovska's modular form inequalities. [PDF]

Proc Natl Acad Sci U S A, 2023
Romik D.
europepmc   +1 more source