Results 71 to 80 of about 448,655 (204)
Definition and Computation of Tensor‐Based Generalized Function Composition
Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.ABSTRACT Functions are fundamental to mathematics as they offer a structured and analytical framework to express relations between variables. While scalar and matrix‐based functions are well‐established, higher‐order tensor‐based functions have not been as extensively explored.
Remy Boyer
wiley +1 more source
Mathematics OpenThe purpose of this paper is to investigate the bounds of the spectral norms of some circulant matrices whose elements are a generalization of Jacobsthal–Lucas numbers called bi-periodic Jacobsthal–Lucas numbers by three different ways.
Sukran Uygun
doaj +1 more source
On circulant matrices with Fibonacci quaternions [PDF]
Notes on Number Theory and Discrete MathematicsIn literature, there exist many papers that compute determinants and some kinds of norms of circulant matrices involving some well-known number sequences.
Seda Yamaç Akbıyık +3 more
doaj +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.To address the challenges of channel sensitivity and reliability in aircraft cabin environments, this paper proposes a reinforcement learning‐assisted bidirectional communication system utilizing visible light for the downlink and infrared for the uplink. By combining an improved, resource‐efficient LMMSE algorithm for channel estimation with RL‐driven
Lei Xiao +5 more
wiley +1 more source
CIRCULANT MODULAR HADAMARD MATRICES
, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eliahou, Shalom, Kervaire, Michel
openaire +3 more sources
Journal of Applied Mathematics, 2014 The row first-minus-last right (RFMLR) circulant matrix and row last-minus-first left (RLMFL) circulant matrices are two special pattern matrices. By using the inverse factorization of polynomial, we give the exact formulae of determinants of the two ...
Zhaolin Jiang, Nuo Shen, Juan Li
doaj +1 more source
Range–Doppler Estimation With an EM‐Learned Prior for Pulse‐Agile Waveforms
Electronics Letters, Volume 62, Issue 1, January/December 2026.This letter proposes an expectation–maximisation (EM)‐based range–Doppler (RD) estimator that adaptively learns the clutter and target distributions and adjusts an RD prior map. By optimising the shrinkage strength via prior weighting, the proposed method improves RSM suppression in the region of interest.
Xiaojian Xu +3 more
wiley +1 more source
Circulant Matrices and Time-series Analysis [PDF]
This paper sets forth some of the salient results in the algebra of circulant matrices which can be used in time-series analysis. It provides easy derivations of some results that are central to the analysis of statistical periodograms and empirical ...
Stephen Pollock
core
On circulant and two-circulant weighing matrices.
Australas. J Comb., 2010 We employ theoretical and computational techniques to construct new weighing matrices constructed from two circulants. In particular, we con- struct W (148, 144), W (152, 144), W (156, 144) which are listed as open in the second edition of the Handbook of Combinatorial Designs.
Arasu, K T +3 more
openaire +2 more sources
About Circulant Involutory MDS Matrices
, 2017 International audienceWe give a new algebraic proof of the non-existence of circulant involutory MDS matrices with coefficients in fields of even characteristic. For odd characteristics we give parameters for the potential existence.
Cauchois, Victor, Loidreau, Pierre
core +4 more sources