Found 2738 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Multifunctional Space-Time Metasurfaces

This solution opens the door for future real-time reconfigurable and environment-adaptive nonreciprocal wave controllers. Expand abstract.
94 days ago
8/10 relevant
arXiv

Regularity estimates for nonlocal space-time master equations in bounded domains

We obtain sharp parabolic interior and global Schauder estimates for solutions to nonlocal space-time master equations $(\partial_t +L)^su = f$ in $\mathbb{R} \times \Omega$, where $L$ is an elliptic operator in divergence form, subject to homogeneous Dirichlet and Neumann boundary conditions. Expand abstract.
95 days ago
10/10 relevant
arXiv

Hyperspectral terahertz microscopy via nonlinear ghost imaging

We demonstrate that traditional time-slice approaches are prone to essential limitations in near-field imaging due to space-time coupling, which is overcome by our technique. Expand abstract.
95 days ago
4/10 relevant
arXiv

Comment on "Comment on linear confinement of a scalar particle in a G\"{o}del-type space-time"

We show that from an appropriate manipulation of the biconfluent Heun differential equation can obtain the correct expression for the energy eigenvalues for the Klein-Gordon equation without potential in the background of Som-Raychaudhuri space-time with a cosmic string as a case particular ($k_{L}=0$) of [Vit\'{o}ria et al. Expand abstract.
95 days ago
10/10 relevant
arXiv

A sparse occupancy model to quantify species interactions in time and space

By integrating both spatial and temporal information, we extend the notation of overlap coefficient between species to time and space to study niche partitioning. Expand abstract.
97 days ago
7/10 relevant
bioRxiv

About toroidal soliton-particle of extremal space-time film

Its space-localized solution in toroidal coordinates with periodic dependence in time is investigated. Expand abstract.
98 days ago
10/10 relevant
arXiv

Critical behavior for a semilinear parabolic equation with forcing term depending of time and space

We investigate the large-time behavior of the sign-changing solution of the inhomogeneous semilinear heat equation with a forcing term depending of time and space. we identify the critical exponent for this problem, which separates the nonexistence/existence of global-in-time solutions, and show the discontinuity... Expand abstract.
100 days ago
7/10 relevant
arXiv

Fast Rotating Relativistic Stars: Spectra and Stability without Approximation

The study is based on the linearised version of Einstein's equations and via this approach the oscillation frequencies, the damping and growth times as well as the critical values for the onset of the secular (CFS) instability are presented. Expand abstract.
101 days ago
4/10 relevant
arXiv

An exactly mass conserving space-time embedded-hybridized discontinuous Galerkin method for the Navier-Stokes equations on moving domains

Numerical examples will demonstrate the differences in solution obtained by the space-time EHDG, EDG, and HDG methods. Expand abstract.
101 days ago
10/10 relevant
arXiv

Convolutional Neural Networks for Space-Time Block Coding Recognition

This paper first proposes a novel identification algorithm for Space-Time Block coding(STBC) signal. Expand abstract.
101 days ago
10/10 relevant
arXiv