**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**2199

# Search results for: inverse matrix

##### 2199 On Direct Matrix Factored Inversion via Broyden's Updates

**Authors:**
Adel Mohsen

**Abstract:**

**Keywords:**
Broyden's updates,
matrix inverse,
inverse factorization,
solution of linear algebraic equations,
ill-conditioned matrices,
preconditioning

##### 2198 Inverse Matrix in the Theory of Dynamical Systems

**Authors:**
Renata Masarova,
Bohuslava Juhasova,
Martin Juhas,
Zuzana Sutova

**Abstract:**

**Keywords:**
dynamic system,
transfer matrix,
inverse matrix,
modeling

##### 2197 On Block Vandermonde Matrix Constructed from Matrix Polynomial Solvents

**Authors:**
Malika Yaici,
Kamel Hariche

**Abstract:**

**Keywords:**
block vandermonde matrix,
solvents,
matrix polynomial,
matrix inverse,
matrix determinant,
parallelization

##### 2196 Infinite Impulse Response Digital Filters Design

**Authors:**
Phuoc Si Nguyen

**Abstract:**

**Keywords:**
bilinear z-transformation,
frequency transformation,
inverse bilinear z-transformation,
IIR digital filters

##### 2195 Base Change for Fisher Metrics: Case of the q-Gaussian Inverse Distribution

**Authors:**
Gabriel I. Loaiza Ossa,
Carlos A. Cadavid Moreno,
Juan C. Arango Parra

**Abstract:**

**Keywords:**
base of changes,
information geometry,
inverse Gaussian distribution,
inverse q-Gaussian distribution,
statistical manifolds

##### 2194 Random Matrix Theory Analysis of Cross-Correlation in the Nigerian Stock Exchange

**Authors:**
Chimezie P. Nnanwa,
Thomas C. Urama,
Patrick O. Ezepue

**Abstract:**

**Keywords:**
correlation matrix,
eigenvalue and eigenvector,
inverse participation ratio,
portfolio optimization,
random matrix theory

##### 2193 Parameters Optimization of the Laminated Composite Plate for Sound Transmission Problem

**Authors:**
Yu T. Tsai,
Jin H. Huang

**Abstract:**

**Keywords:**
sound transmission loss,
laminated composite plate,
transfer matrix approach,
inverse problem,
elastic plate theory,
material properties

##### 2192 Stochastic Matrices and Lp Norms for Ill-Conditioned Linear Systems

**Authors:**
Riadh Zorgati,
Thomas Triboulet

**Abstract:**

**Keywords:**
conditioning,
generalized inverse,
linear system,
norms,
stochastic matrix

##### 2191 An Approach to Solving Some Inverse Problems for Parabolic Equations

**Authors:**
Bolatbek Rysbaiuly,
Aliya S. Azhibekova

**Abstract:**

**Keywords:**
iterative approach,
inverse problem,
parabolic equation,
reservoir properties

##### 2190 Congruences Induced by Certain Relations on Ag**-Groupoids

**Authors:**
Faisal Yousafzai,
Murad-ul-Islam Khan,
Kar Ping Shum

**Abstract:**

**Keywords:**
AG**-groupoids,
congruences,
inverses,
rectangular band

##### 2189 Uncontrollable Inaccuracy in Inverse Problems

**Authors:**
Yu Menshikov

**Abstract:**

**Keywords:**
inverse problems,
filtration,
uncontrollable inaccuracy

##### 2188 The Second Smallest Eigenvalue of Complete Tripartite Hypergraph

**Authors:**
Alfi Y. Zakiyyah,
Hanni Garminia,
M. Salman,
A. N. Irawati

**Abstract:**

**Keywords:**
connectivity,
graph,
hypergraph,
Laplacian matrix

##### 2187 Frequency Transformation with Pascal Matrix Equations

**Authors:**
Phuoc Si Nguyen

**Abstract:**

**Keywords:**
frequency transformation,
bilinear z-transformation,
pre-warping frequency,
digital filters,
analog filters,
pascal’s triangle

##### 2186 Inverse Scattering for a Second-Order Discrete System via Transmission Eigenvalues

**Authors:**
Abdon Choque-Rivero

**Abstract:**

**Keywords:**
inverse scattering,
discrete system,
transmission eigenvalues,
Marchenko method

##### 2185 Conditions on Expressing a Matrix as a Sum of α-Involutions

**Authors:**
Ric Joseph R. Murillo,
Edna N. Gueco,
Dennis I. Merino

**Abstract:**

**Keywords:**
α-involutory Matrices,
sum of α-involutory Matrices,
Trace,
Matrix Theory

##### 2184 Dynamic Updating of Principal Components of Model Reduction Error in Diffuse Optical Tomography

**Authors:**
Peyman Beygi,
Alireza Zirak

**Abstract:**

**Keywords:**
inverse problem,
marginalization error,
principal component,
ensemble Kalman filter

##### 2183 Inverse Heat Transfer Analysis of a Melting Furnace Using Levenberg-Marquardt Method

**Authors:**
Mohamed Hafid,
Marcel Lacroix

**Abstract:**

**Keywords:**
melting furnace,
inverse heat transfer,
enthalpy method,
levenberg–marquardt method

##### 2182 Manufacturing and Characterization of Ni-Matrix Composite Reinforced with Ti3SiC2 and Ti2AlC; and Al-Matrix with Ti2SiC

**Authors:**
M. Hadji,
N. Chiker,
Y. Hadji,
A. Haddad

**Abstract:**

**Keywords:**
MAX phase,
microstructures,
composites,
hardness,
SEM

##### 2181 Hybrid Algorithm for Non-Negative Matrix Factorization Based on Symmetric Kullback-Leibler Divergence for Signal Dependent Noise: A Case Study

**Authors:**
Ana Serafimovic,
Karthik Devarajan

**Abstract:**

**Keywords:**
non-negative matrix factorization,
dimension reduction,
clustering,
intrinsic information,
symmetric information divergence,
signal-dependent noise,
exponential family,
generalized Kullback-Leibler divergence,
dual divergence

##### 2180 Analysis of Cross-Correlations in Emerging Markets Using Random Matrix Theory

**Authors:**
Thomas Chinwe Urama,
Patrick Oseloka Ezepue,
Peters Chimezie Nnanwa

**Abstract:**

**Keywords:**
random matrix theory,
cross-correlations,
emerging markets,
option pricing,
eigenvalues eigenvectors,
inverse participation ratios and implied volatility

##### 2179 Ill-Posed Inverse Problems in Molecular Imaging

**Authors:**
Ranadhir Roy

**Abstract:**

**Keywords:**
constrained minimization,
ill-conditioned inverse problems,
Tikhonov regularization method,
penalty modified barrier function method

##### 2178 Category-Base Theory of the Optimum Signal Approximation Clarifying the Importance of Parallel Worlds in the Recognition of Human and Application to Secure Signal Communication with Feedback

**Authors:**
Takuro Kida,
Yuichi Kida

**Abstract:**

**Keywords:**
signal prediction,
pseudo inverse matrix,
artificial intelligence,
conditional optimization

##### 2177 Jacobson Semisimple Skew Inverse Laurent Series Rings

**Authors:**
Ahmad Moussavi

**Abstract:**

**Keywords:**
skew polynomial rings,
Laurent series,
skew inverse Laurent series rings

##### 2176 An Inverse Heat Transfer Algorithm for Predicting the Thermal Properties of Tumors during Cryosurgery

**Authors:**
Mohamed Hafid,
Marcel Lacroix

**Abstract:**

*Pennes*bioheat equation. The phase change problem is handled with the enthalpy method. The

*Levenberg-Marquardt*Method (LMM) combined to the

*Broyden*Method (BM) is used to solve the inverse model. The effect (a) of the thermal properties of the diseased tissues; (b) of the initial guesses for the unknown thermal properties; (c) of the data capture frequency; and (d) of the noise on the recorded temperatures is examined. It is shown that the proposed inverse approach remains accurate for all the cases investigated.

**Keywords:**
cryosurgery,
inverse heat transfer,
Levenberg-Marquardt method,
thermal properties,
Pennes model,
enthalpy method

##### 2175 A Review on Aluminium Metal Matric Composites

**Authors:**
V. Singh,
S. Singh,
S. S. Garewal

**Abstract:**

**Keywords:**
aluminum metal matrix composites,
applications of aluminum metal matrix composites,
lighting material processing of aluminum metal matrix composites

##### 2174 A Multigrid Approach for Three-Dimensional Inverse Heat Conduction Problems

**Authors:**
Jianhua Zhou,
Yuwen Zhang

**Abstract:**

**Keywords:**
conduction,
inverse problems,
conjugated gradient method,
laser

##### 2173 Prediction of the Thermal Parameters of a High-Temperature Metallurgical Reactor Using Inverse Heat Transfer

**Authors:**
Mohamed Hafid,
Marcel Lacroix

**Abstract:**

**Keywords:**
inverse heat transfer,
phase change,
metallurgical reactor,
Levenberg–Marquardt method,
Broyden method,
bank thickness

##### 2172 Numerical Simulation of Effect of Various Rib Configurations on Enhancing Heat Transfer of Matrix Cooling Channel

**Authors:**
Seok Min Choi,
Minho Bang,
Seuong Yun Kim,
Hyungmin Lee,
Won-Gu Joo,
Hyung Hee Cho

**Abstract:**

**Keywords:**
matrix cooling,
rib,
heat transfer,
gas turbine

##### 2171 Design of a 4-DOF Robot Manipulator with Optimized Algorithm for Inverse Kinematics

**Authors:**
S. Gómez,
G. Sánchez,
J. Zarama,
M. Castañeda Ramos,
J. Escoto Alcántar,
J. Torres,
A. Núñez,
S. Santana,
F. Nájera,
J. A. Lopez

**Abstract:**

**Keywords:**
kinematics,
degree of freedom,
optimization,
robot manipulator

##### 2170 Parallel Computation of the Covariance-Matrix

**Authors:**
Claude Tadonki

**Abstract:**

**Keywords:**
covariance-matrix,
multicore,
numerical computing,
parallel computing