Results 71 to 80 of about 30,222 (232)
MathematicsA new class of linear non-homogeneous discrete matrix equations with multiple delays and second-order differences is considered, where the coefficient matrices satisfy pairwise permutability conditions.
Ahmed M. Elshenhab +2 more
doaj +1 more source
The Electronic Journal of Linear Algebra, 2005 The variety C(3 ,n ) of commuting triples of n × n matrices over C is shown to be irreducible for n =7 . It had been proved thatC(3 ,n ) is reducible for n ≥ 30, but irreducible for n ≤ 6. Guralnick and Omladic have conjectured that it is reducible for n> 7.
openaire +2 more sources
Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies
Laser &Photonics Reviews, EarlyView.Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil +6 more
wiley +1 more source
A Resource Efficient Ising Model‐Based Quantum Sudoku Solver
Software: Practice and Experience, EarlyView.ABSTRACT Background Quantum algorithms exploit superposition and parallelism to address complex combinatorial problems, many of which fall into the non‐polynomial (NP) class. Sudoku, a widely known logic‐based puzzle, is proven to be NP‐complete and thus presents a suitable testbed for exploring quantum optimization approaches.
Wen‐Li Wang +5 more
wiley +1 more source
A Vectorization Approach to Solving and Controlling Fractional Delay Differential Sylvester Systems
MathematicsThis paper addresses the solvability and controllability of fractional delay differential Sylvester matrix equations with non-permutable coefficient matrices.
Fatemah Mofarreh, Ahmed M. Elshenhab
doaj +1 more source
A fast and precise method to solve the Altarelli-Parisi equations in x space [PDF]
, 2001 A numerical method to solve linear integro-differential equations is presented. This method has been used to solve the QCD Altarelli-Parisi evolution equations within the H1 Collaboration at DESY-Hamburg. Mathematical aspects and numerical approximations
Pascaud, C., Zomer, F.
core +2 more sources
Non‐Rigid 3D Shape Correspondences: From Foundations to Open Challenges and Opportunities
Computer Graphics Forum, EarlyView.Abstract Estimating correspondences between deformed shape instances is a long‐standing problem in computer graphics; numerous applications, from texture transfer to statistical modelling, rely on recovering an accurate correspondence map. Many methods have thus been proposed to tackle this challenging problem from varying perspectives, depending on ...
A. Zhuravlev +14 more
wiley +1 more source
Generalized composition law from 2x2 matrices
, 2009 Many results that are difficult can be found more easily by using a generalization in the complex plane of Einstein's addition law of parallel velocities. Such a generalization is a natural way to add quantities that are limited to bounded values.
Giust, R., Lages, J., Vigoureux, J. -M.
core +3 more sources
The topological AC effect on noncommutative phase space [PDF]
, 2006 The Aharonov-Casher (AC) effect in non-commutative(NC) quantum mechanics is studied. Instead of using the star product method, we use a generalization of Bopp's shift method.
B. Mirza +22 more
core +3 more sources
Models with commutative orthogonal block structure: a general condition for commutativity
Journal of Applied Statistics, 2020 A linear mixed model whose variance-covariance matrix is a linear combination of known pairwise orthogonal projection matrices that add to the identity matrix, is a model with orthogonal block structure (OBS).
C. Santos, C. Nunes, C. Dias, J. Mexia
semanticscholar +1 more source