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Coherent beam combination (CBC) of fiber lasers holds promise for achieving high brightness laser systems, which have given rise to widespread applications such as particle accelerator, space debris removal, and industrial fabrication. The…

光学 · 物理学 2021-12-14 Tianyue Hou , Qi Chang , Pengfei Ma , Jinhu Long , Pu Zhou

Sparse arrays with $N$-sensors can provide up to $O(N^2)$ degrees of freedom (DOF) by second-order cumulants. However, these sparse arrays like minimum-/low-redundancy arrays (MRAs/LRAs), nested arrays and coprime arrays can only provide…

信号处理 · 电气工程与系统科学 2025-03-25 Si Wang , Guoqiang Xiao

Architected materials possessing physico-chemical properties adaptable to disparate environmental conditions embody a disruptive new domain of materials science. Fueled by advances in digital design and fabrication, materials shaped into…

材料科学 · 物理学 2023-09-25 Dominik Dold , Derek Aranguren van Egmond

We study different extended formulations for the set $X = \{x\in\mathbb{Z}^n \mid Ax = Ax^0\}$ in order to tackle the feasibility problem for the set $X_+=X \cap \mathbb{Z}^n_+$. Here the goal is not to find an improved polyhedral…

最优化与控制 · 数学 2007-05-23 Karen Aardal , Laurence A. Wolsey

Locating arrays (LAs) can be used to detect and identify interaction faults among factors in a component-based system. The optimality and constructions of LAs with a single fault have been investigated extensively under the assumption that…

组合数学 · 数学 2020-05-28 Ce Shi , Hao Jin , Tatsuhiro Tsuchiya

In this work, a novel soft continuum robot-inspired antenna array is proposed, featuring tentacle-like structures with multiple antenna elements. The proposed array achieves reconfigurability through continuous deformation of its geometry,…

信息论 · 计算机科学 2025-09-09 Elio Faddoul , Andreas Nicolaides , Konstantinos Ntougias , Ioannis Krikidis

Recurrent neural networks have shown remarkable success in modeling sequences. However low resource situations still adversely affect the generalizability of these models. We introduce a new family of models, called Lattice Recurrent Units…

机器学习 · 计算机科学 2017-11-23 Chaitanya Ahuja , Louis-Philippe Morency

Lattice structures have great potential for several application fields ranging from medical and tissue engineering to aeronautical one. Their development is further speeded up by the continuing advances in additive manufacturing…

软凝聚态物质 · 物理学 2025-01-13 Chiara Pasini , Oscar Ramponi , Stefano Pandini , Luciana Sartore , Giulia Scalet

We propose a new method to construct maximin distance designs with arbitrary number of dimensions and points. The proposed designs hold interleaved-layer structures and are by far the best maximin distance designs in four or more…

统计方法学 · 统计学 2018-07-09 Xu He

Hypersubstitutions are mappings which map operation symbols to terms. Terms can be visualized by trees. Hypersubstitutions can be extended to mappings defined on sets of trees. The nodes of the trees, describing terms, are labelled by…

环与代数 · 数学 2008-12-03 Klaus Denecke , Jorg Koppitz , Slavcho Shtrakov

Large-scale programmable photonic circuits are opening up new possibilities for information processing providing fast and energy-efficient means for matrix-vector multiplication. Here, we introduce a novel architecture of photonic circuits…

光学 · 物理学 2025-09-19 S. A. Fldzhyan , M. Yu. Saygin , S. S. Straupe

Differential-difference integrable exponential type systems are studied corresponding to the Cartan matrices of semi-simple or affine Lie algebras. For the systems corresponding to the algebras $A_2$, $B_2$, $C_2$, $G_2$ the complete sets…

可精确求解与可积系统 · 物理学 2015-05-28 Ismagil Habibullin , Kostyantyn Zheltukhin , Marina Yangubaeva

Linear complementary dual codes were defined by Massey in 1992, and were used to give an optimum linear coding solution for the two user binary adder channel. In this paper, we define the analog of LCD codes over fields in the ambient space…

A new approach for designing bilayer and multi-layer LDPC codes is proposed and studied in the asymptotic regime. The ensembles are defined through individual uni-variate degree distributions, one for each layer. We present a construction…

信息论 · 计算机科学 2020-10-29 Eshed Ram , Yuval Cassuto

We introduce stripe-like quasi-nondiffracting lattices that can be generated via spatial spectrum engineering. The complexity of the spatial shapes of such lattices and the distance of their almost diffractionless propagation depend on the…

An additive code is an $\mathbb{F}_q$-linear subspace of $\mathbb{F}_{q^m}^n$ over $\mathbb{F}_{q^m}$, which is not a linear subspace over $\mathbb{F}_{q^m}$. Linear complementary pairs (LCP) of codes have important roles in cryptography,…

信息论 · 计算机科学 2024-09-26 Sanjit Bhowmick , Deepak Kumar Dalai

The paper shows that there is a deep structure on certain sets of bisimilar Probabilistic Automata (PA). The key prerequisite for these structures is a notion of compactness of PA. It is shown that compact bisimilar PA form lattices. These…

形式语言与自动机理论 · 计算机科学 2014-02-28 Johann Schuster , Markus Siegle

We introduce certain lattice sums associated with hyperplane arrangements, which are (multiple) sums running over integers, and can be regarded as generalizations of certain linear combinations of zeta-functions of root systems. We also…

数论 · 数学 2016-04-29 Yasushi Komori , Kohji Matsumoto , Hirofumi Tsumura

We present an experimental method based on a modified multiple beam interference approach to generate an optical vortex array arranged in a spatially varying lattice. This method involves two steps which are: numerical synthesis of a…

光学 · 物理学 2015-12-17 Amit Kapoor , Manish Kumar , P. Senthilkumaran , Joby Joseph

The novel and ingenious scheme we propose for achieving unidirectional reflection lasing (URL) involves integrating a one-dimensional (1D) defective atomic lattice with a coherent gain atomic system. Its physical essence lies in the fact…