Results 51 to 60 of about 1,456,492 (292)

Asymptotic accelerated expansion in string theory and the Swampland

open access: yesJournal of High Energy Physics, 2023
We study whether the universal runaway behaviour of stringy scalar potentials towards infinite field distance limits can produce an accelerated expanding cosmology à la quintessence.
José Calderón-Infante   +2 more
doaj   +1 more source

Volatile ZrO2 Antiferroelectric Tunnel Junctions for Rapid, Energy‐Efficient Physical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
An antiferroelectric tunnel junction serves as a reservoir computing node, where field‐induced phase transitions and spontaneous ZrO2 relaxation deliver nonlinear fading memory. An In‐Ga‐Zn oxide interlayer enlarges the memory margin and multibit state richness.
Taegyu Kwon   +13 more
wiley   +1 more source

"An Asymptotic Expansion with Malliavin Weights: An Application to Pricing Discrete Barrier Options" [PDF]

open access: yes
This paper proposes a new approximation method for pricing barrier options with discrete monitoring under stochastic volatility environment. In particular, the integration-by-parts formula in Malliavin calculus is effectively applied in an asymptotic ...
Akihiko Takahashi, Toshihiro Yamada
core   +2 more sources

Learning Work Function via Implicit Reasoning on Electrostatic Potential Landscapes

open access: yesAdvanced Science, EarlyView.
StructPot‐CLR establishes a cross‐modal contrastive learning framework that aligns the crystal structures of 2D materials with plane‐averaged electrostatic potential landscapes for physically informed work‐function prediction. The model achieves an MAE of 0.265 eV and an R2 of 0.902 on the held‐out test set while accurately preserving key morphological
Haoyu Wan, Yue Wu, Tianhao Su, Deng Pan
wiley   +1 more source

Bi-asymptotic c-expansivity

open access: yesJournal of Mathematical Analysis and Applications
12 ...
Nageshwar, Rohit   +2 more
openaire   +2 more sources

On the Asymptotic Expansions of the (p,k)-Analogues of the Gamma Function and Associated Functions

open access: yesAxioms
General asymptotic expansion of the (p,k)-gamma function is obtained and various approaches to this expansion are studied. The numerical precision of the derived asymptotic formulas is shown and compared.
Tomislav Burić
doaj   +1 more source

A Justification of Two-Dimensional Nonlinear Viscoelastic Shells Model

open access: yesAbstract and Applied Analysis, 2012
By applying formal asymptotic analysis and Laplace transformation, we obtain two-dimensional nonlinear viscoelastic shells model satisfied by the leading term of asymptotic expansion of the solution to the three-dimensional equations.
Fushan Li
doaj   +1 more source

Zero-order Approximation of Three-time Scale Singular Linear-quadratic Optimal Control Problem

open access: yesМоделирование и анализ информационных систем, 2015
This paper is devoted to the construction of a zero-order approximation of the solution of a three-time scale singular perturbed linear-quadratic optimal control problem with the help of the direct scheme method.
M. A. Kalashnikova
doaj   +1 more source

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

open access: yesAdvanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu   +6 more
wiley   +1 more source

Embedding asymptotically expansive systems

open access: yesMonatshefte für Mathematik, 2017
We prove a Krieger like embedding theorem for asymptotically expansive systems with the small boundary property. We show that such a system $(X; T)$ embeds in the $K$-full shift with $h_{top}(T) < \log K $ and $\sharp Per_n(X; T) \leq \sharp Per_n(\{1,...,K\}^{\mathbb{Z}};σ)$ for any integer $n$.
openaire   +4 more sources

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