Results 71 to 80 of about 713,685 (358)

Method for Investigation of Convergence of Formal Series Involved in Asymptotics of Solutions of Second-Order Differential Equations in the Neighborhood of Irregular Singular Points

open access: yesAxioms
The aim of the article is to create a method for studying the asymptotics of solutions to second-order differential equations with irregular singularities.
Maria Korovina, Ilya Smirnov
doaj   +1 more source

On the boundary value problems for ordinary differential equations with isolated singularity

open access: yesLietuvos Matematikos Rinkinys, 2005
We consider some two-point boundary value problems for second order o.d.e. with strong singularity. The asymptotics of the solutions at the singular point are given. The existence and uniqueness of the solutions of those problems are prooved.
Kristina Aldošina, Stasys Rutkauskas
doaj   +1 more source

Developments in the Khintchine-Meinardus probabilistic method for asymptotic enumeration [PDF]

open access: yes, 2015
A theorem of Meinardus provides asymptotics of the number of weighted partitions under certain assumptions on associated ordinary and Dirichlet generating functions.
Granovsky, Boris L., Stark, Dudley
core  

Fractal asymptotics

open access: yes, 2003
Recent advances in the periodic orbit theory of stochastically perturbed systems have permitted a calculation of the escape rate of a noisy chaotic map to order 64 in the noise strength.
Berry   +13 more
core   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

Total Born cross section of e+e−-pair production by an electron in the Coulomb field of a nucleus

open access: yesPhysics Letters B
We calculate the total Born cross section of the e+e−-pair production by an electron in the field of a nucleus (trident process) using the modern multiloop methods. For general energies we obtain the cross section in terms of converging power series. The
Roman N. Lee   +2 more
doaj   +1 more source

Continuous-time quantum Monte Carlo calculation of multi-orbital vertex asymptotics

open access: yes, 2017
We derive the equations for calculating the high-frequency asymptotics of the local two-particle vertex function for a multi-orbital impurity model. These relate the asymptotics for a general local interaction to equal-time two-particle Green's functions,
Gunacker, Patrik   +2 more
core   +2 more sources

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

open access: yesAdvanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram   +2 more
wiley   +1 more source

Asymptotics of the deuteron form factors in the nucleon model and JLab experiments

open access: yes, 2008
Using the instant form dynamics of Poincar\'e invariant quantum mechanics and the modified relativistic impulse approximation proposed previously we calculate asymptotics of electromagnetic form factors for the deuteron considered as two--nucleon system.
A. F. Krutov   +6 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

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