Results 51 to 60 of about 731 (131)
Massive MIMO is a Reality -- What is Next? Five Promising Research Directions for Antenna Arrays
, 2019 Massive MIMO (multiple-input multiple-output) is no longer a "wild" or "promising" concept for future cellular networks - in 2018 it became a reality.
Björnson, Emil +4 more
core +1 more source
General infinitesimal variations of the Hodge structure of ample curves in surfaces
Mathematische Nachrichten, Volume 298, Issue 7, Page 2282-2308, July 2025.Abstract Given a smooth projective complex curve inside a smooth projective surface, one can ask how its Hodge structure varies when the curve moves inside the surface. In this paper, we develop a general theory to study the infinitesimal version of this question in the case of ample curves.
Víctor González‐Alonso, Sara Torelli
wiley +1 more source
Non-Euclidean geometry in nature
, 2017 I describe the manifestation of the non-Euclidean geometry in the behavior of collective observables of some complex physical systems. Specifically, I consider the formation of equilibrium shapes of plants and statistics of sparse random graphs.
Nechaev, Sergei
core +1 more source
Optimum sparse subarray design for multitask receivers [PDF]
, 2018 The problem of optimum sparse array configuration to maximize the beamformer output signal-to-interference plus noise ratio (MaxSINR) in the presence of multiple sources of interest (SOI) has been recently addressed in the literature.
Anastasios Deligiannis (2816017) +3 more
core +1 more source
Modeling General Asymptotic Calabi–Yau Periods
Fortschritte der Physik, Volume 73, Issue 7, July 2025.Abstract In the quest to uncovering the fundamental structures that underlie some of the asymptotic Swampland conjectures the authors initiate the general study of asymptotic period vectors of Calabi–Yau manifolds. The strategy is to exploit the constraints imposed by completeness, symmetry, and positivity, which are formalized in asymptotic Hodge ...
Brice Bastian +2 more
wiley +1 more source
Cyclic branched covers of Seifert links and properties related to the ADE$ADE$ link conjecture
Journal of the London Mathematical Society, Volume 111, Issue 6, June 2025.Abstract In this article, we show that all cyclic branched covers of a Seifert link have left‐orderable fundamental groups, and therefore admit co‐oriented taut foliations and are not L$L$‐spaces, if and only if it is not an ADE$ADE$ link up to orientation. This leads to a proof of the ADE$ADE$ link conjecture for Seifert links. When L$L$ is an ADE$ADE$
Steven Boyer +2 more
wiley +1 more source
Sub-sampled exponential analysis applied to sparse planar antenna array configurations [PDF]
, 2023 Thesis (PhD)--Stellenbosch University, 2023.ENGLISH ABSTRACT: Considerable research efforts are currently ongoing for the planned Mid-Frequency perture Array of the Square Kilometre Array project, which is set to operate from 450- 1450 MHz.
Raal, Ridalise
core +1 more source
A classification of infinite staircases for Hirzebruch surfaces
Journal of Topology, Volume 18, Issue 1, March 2025.Abstract The ellipsoid embedding function of a symplectic manifold gives the smallest amount by which the symplectic form must be scaled in order for a standard ellipsoid of the given eccentricity to embed symplectically into the manifold. It was first computed for the standard four‐ball (or equivalently, the complex projective plane) by McDuff and ...
Nicki Magill +2 more
wiley +1 more source
Reconstructing Rational Functions with $\texttt{FireFly}$
, 2019 We present the open-source $\texttt{C++}$ library $\texttt{FireFly}$ for the reconstruction of multivariate rational functions over finite fields. We discuss the involved algorithms and their implementation.
Klappert, Jonas, Lange, Fabian
core +1 more source
Electronics Letters, Volume 61, Issue 1, January/December 2025.This paper focuses on the performance analysis of networked control systems, specifically addressing the optimal tracking performance with quantitative control inputs over feedback channels. A dual‐degree‐of‐freedom controller is designed using the Youla parameterization method, and the system's performance is assessed through numerical simulations ...
Fang Han, Xiaowei Jiang
wiley +1 more source