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The P-matrix problem is co-NP-complete
Mathematical Programming, 1994zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Causal P-matrix description of leaky SAW devices
2016 IEEE International Ultrasonics Symposium (IUS), 2016In this work a causal P-matrix method for leaky SAW(LSAW) devices and the determination of the thereto needed COM-parameters slowness s and reflection r are presented. As a consequence of causality s and r in general are complex. The imaginary parts of reflection and slowness are interpreted as the exchange of energy between SAW and BAW.
Gholamreza Dadgar-Javid +3 more
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Physical Review D, 1987
Exact model calculations are employed to test the reliability of methods using properties of bag-model states to obtain P- or F-matrix parameters.
Gregory A. Crawford, Gerald A. Miller
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Exact model calculations are employed to test the reliability of methods using properties of bag-model states to obtain P- or F-matrix parameters.
Gregory A. Crawford, Gerald A. Miller
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P matrix analysis of nucleon-nucleon scattering
Nuclear Physics A, 1984Abstract The P matrix is useful to establish the connection between the short range quark and gluon, and the long range nucleon and meson degrees of freedom which play a role in the interactions between hadrons. It can be used as a phenomenological tool in data parametrization but, more important, it contains information about the short range ...
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A generalised P-matrix model for SAW filters
IEEE Symposium on Ultrasonics, 2003, 2004The P-matrix model, which can be seen as a discrete version of the continuous COM model, is a well established tool to analyse the electro-acoustic properties of IDTs and reflector gratings. It relates both outgoing acoustic surface waves and the electric current to both incoming acoustic surface waves and the electric voltage.
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A Smoothing Method for a Mathematical Program with P-Matrix Linear Complementarity Constraints
Computational Optimization and Applications, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaojun Chen, Masao Fukushima
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P-Matrix Analysis of Surface Acoustic Waves in Piezoelectric Phononic Crystals
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2016Large time/memory costs have constituted a significant obstacle for accurately analyzing surface acoustic waves (SAWs) in large size two-dimensional (2-D) piezoelectric phononic crystals (PnCs). To overcome this obstacle, this study introduces the unit P matrix and its associated cascading.
Yahui Tian +4 more
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Computation of Error Bounds for P-matrix Linear Complementarity Problems
Mathematical Programming, 2005We give new error bounds for the linear complementarity problem where the involved matrix is a P-matrix. Computation of rigorous error bounds can be turned into a P-matrix linear interval system. Moreover, for the involved matrix being an H-matrix with positive diagonals, an error bound can be found by solving a linear system of equations, which is ...
Xiaojun Chen, Shuhuang Xiang
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P-matrix modeling of transverse-mode coupled resonator filters
1993 Proceedings IEEE Ultrasonics Symposium, 1993We develop an efficient analysis and synthesis tool for the design of transverse-mode coupled resonator filters. We describe the energy storage effect and the electrical and mechanical loading effect with a one-dimensional model. The two-dimensional nature of the problem is taken into account by shape functions, representing the nonuniform velocity ...
G. Scholl, Peter Russer, W. Ruile
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Coupled Channels and P-matrix approach to Baryon-Antibaryon Interactions
1987Recent data [1,2] taken at LEAR on the reaction \(\overline {p\,} \,p \to \,\overline A A\) show some interesting features. The differential cross-section is highly anisotropic even close to threshold, suggesting the contribution of many partial waves to the reaction.
Timmers, P. +3 more
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