Roland W. Freund

Roland W. Freund's AcademicInfluence.com Rankings

Roland W. Freund

Engineering

#7071

World Rank

#8431

Historical Rank

Electrical Engineering

#2175

World Rank

#2281

Historical Rank

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Engineering

Roland W. Freund's Degrees

PhD Electrical Engineering Stanford University

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Roland W. Freund's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Efficient linear circuit analysis by Pade´ approximation via the Lanczos process (1994) (1312)
QMR: a quasi-minimal residual method for non-Hermitian linear systems (1991) (1102)
A Transpose-Free Quasi-Minimal Residual Algorithm for Non-Hermitian Linear Systems (1993) (698)
Iterative solution of linear systems (1991) (474)
Krylov-subspace methods for reduced-order modeling in circuit simulation (2000) (442)
Conjugate Gradient-Type Methods for Linear Systems with Complex Symmetric Coefficient Matrices (1992) (409)
An Implementation of the Look-Ahead Lanczos Algorithm for Non-Hermitian Matrices (1993) (365)
Model reduction methods based on Krylov subspaces (2003) (355)
An Implementation of the QMR Method Based on Coupled Two-Term Recurrences (1994) (259)
SPRIM: structure-preserving reduced-order interconnect macromodeling (2004) (245)
Reduced-Order Modeling of Large Linear Subcircuits via a Block Lanczos Algorithm (1995) (232)
A block QMR algorithm for non-Hermitian linear systems with multiple right-hand sides (1997) (183)
Solving the Sum-of-Ratios Problem by an Interior-Point Method (2001) (177)
Reduced-Order Modeling Techniques Based on Krylov Subspaces and Their Use in Circuit Simulation (1999) (161)
A new Krylov-subspace method for symmetric indefinite linear systems (1994) (135)
A Lanczos-type method for multiple starting vectors (2000) (117)
Software for simplified Lanczos and QMR algorithms (1995) (116)
Reduced-order modeling of large passive linear circuits by means of the SyPVL algorithm (1996) (114)
On conjugate gradient type methods and polynomial preconditioners for a class of complex non-hermitian matrices (1990) (99)
Solution of shifted linear systems by quasi-minimal residual iterations (1993) (98)
Reduced-Order Modeling (2005) (98)
Quasi-kernel polynomials and their use in non-Hermitian matrix iterations (1992) (93)
An extension of the positive real lemma to descriptor systems (2004) (91)
Nonlinear semidefinite programming: sensitivity, convergence, and an application in passive reduced-order modeling (2007) (80)
A partial Padé-via-Lanczos method for reduced-order modeling (2001) (80)
On the use of two QMR algorithms for solving singular systems and applications in Markov chain modeling (1994) (78)
QMRPACK: a package of QMR algorithms (1996) (75)
A QMR-based interior-point algorithm for solving linear programs (1997) (68)
The SyMPVL algorithm and its applications to interconnect simulation (1997) (67)
Multiple signal representation simulation of photonic devices, systems, and networks (2000) (62)
Fast secant methods for the iterative solution of large nonsymmetric linear systems (1990) (60)
Passive reduced-order modeling via Krylov-subspace methods (2000) (54)
A look-ahead algorithm for the solution of general Hankel systems (1993) (53)
Efficient Small-signal Circuit Analysis And Sensitivity Computations With The Pvl Algorithm (1994) (52)
Computing Fundamental Matrix Decompositions Accurately via the Matrix Sign Function in Two Iterations: The Power of Zolotarev's Functions (2016) (52)
Eigenvalue-based characterization and test for positive realness of scalar transfer functions (2000) (51)
Chebyshev polynomials are not always optimal (1991) (49)
Iterative solution of multiple radiation and scattering problems in structural acoustics using a block quasi-minimal residual algorithm (1997) (48)
Padé-Type Model Reduction of Second-Order and Higher-Order Linear Dynamical Systems (2004) (48)
Convergence of a Class of Inexact Interior-Point Algorithms for Linear Programs (1999) (48)
Passive reduced-order models for interconnect simulation and their computation via Krylov-subspace algorithms (1999) (48)
Structure-Preserving Model Order Reduction of RCL Circuit Equations (2008) (46)
Formally biorthogonal polynomials and a look-ahead Levinson algorithm for general Teoplitz systems (1993) (45)
Transpose-Free Quasi-Minimal Residual Methods for Non-Hermitian Linear Systems (1994) (45)
Reduced-order modeling of large linear passive multi-terminal circuits using matrix-Pade approximation (1998) (41)
How to make theoretically passive reduced-order models passive in practice (1998) (40)
Circuit noise evaluation by Pade approximation based model-reduction techniques (1997) (40)
The SPRIM Algorithm for Structure-Preserving Order Reduction of General RCL Circuits (2011) (37)
A look-ahead Bareiss algorithm for general Toeplitz matrices (1994) (32)
Stoer/Bulirsch: Numerische Mathematik 1 (2007) (32)
On a class of Chebyshev approximation problems which arise in connection with a conjugate gradient type method (1986) (32)
An interior-point method for fractional programs with convex constraints (1994) (29)
A sensitivity result for semidefinite programs (2004) (28)
Quasi-Kernel Polynomials and Convergence Results for Quasi-Minimal Residual Iterations (1992) (27)
On the constrained Chebyshev approximation problem on ellipses (1990) (27)
On polynomial preconditioning and asymptotic convergence factors for indefinite Hermitian matrices (1991) (23)
Gauss Quadratures Associated with the Arnoldi Process and the Lanczos Algorithm (1993) (23)
A Symmetric Band Lanczos Process Based on Coupled Recurrences and Some Applications (2001) (22)
On Adaptive Weighted Polynomial Preconditioning for Hermitian Positive Definite Matrices (1994) (22)
Preface Special issue on “Order reduction of large-scale systems” (2006) (21)
On polynomial approximations to fa(Z)(z-a)−1 with complex a and some applications to certain non-hermitian matrices (1989) (21)
Krylov Subspaces Associated with Higher-Order Linear Dynamical Systems (2005) (20)
Preconditioning of Symmetric, but Highly Indefinite Linear Systems (1997) (19)
An interior-point method for multifractional programs with convex constraints (1995) (19)
Interconnect-Delay Computation and Signal-Integrity Verification Using the SyMPVL Algorithm (1997) (17)
On self-concordant barrier functions for conic hulls and fractional programming (1996) (17)
Implementation details of the coupled QMR algorithm (1992) (16)
Computing minimal partial realizations via a Lanczos-type algorithm for multiple starting vectors (1997) (15)
Simulation of power evolution and control dynamics in optical transport systems (2005) (15)
A new fast hybrid adaptive grid generation technique for arbitrary two‐dimensional domains (2010) (14)
A sensitivity analysis and a convergence result for a sequential semidefinite programming method (2003) (14)
Algorithms and perturbation theory for matrix eigenvalue problems and the singular value decomposition (2011) (13)
The Look-Ahead Lanczos Process for Large Nonsymmetric Matrices and Related Algorithms (1993) (13)
On Pade-type model order reduction of J-Hermitian linear dynamical systems ⋆ (2008) (13)
Recent advances in Lanczos-based iterative methods for nonsymmetric linear systems (1992) (13)
On some approximation problems for complex polynomials (1988) (12)
Recent Advances in Structure-Preserving Model Order Reduction (2011) (11)
Circuit Simulation Techniques Based on Lanczos-Type Algorithms (1997) (10)
Using Krylov-Subspace Iterations in Discontinuous Galerkin Methods for Nonlinear Reaction-Diffusion Systems (2000) (7)
Unsteady Incompressible Flow Simulation using Galerkin Finite Element with Spatial/Temporal Adaptation (2009) (6)
A Parallel Iterative Method for Exponential Propagation (1995) (6)
RCL Circuit Equations (2005) (6)
Krylov subspace methods for complex non-Hermitian linear systems. Thesis (1991) (5)
QMRPACK and applications (1994) (5)
Computation of matrix-valued formally orthogonal polynomials and applications (2001) (4)
A biconjugate gradient type algorithm on massively parallel architectures (1991) (4)
A sequential semidefinite programming method and an application in passive reduced-order modeling (2005) (4)
An Interior-Point Method For Convex Fractional Programming (1993) (4)
Recent advances in Krylov-subspace solvers for linear systems and applications in device simulation (1997) (4)
Hermitian Eigenvalue Problems (2000) (4)
Non-Hermitian Eigenvalue Problems (2000) (4)
The Look-Ahead Lanczos Process for Nonsymmetric Matrices and its Applications (1994) (4)
Look-ahead Schur-type algorithm for solving general Toeplitz systems (1994) (4)
An extension problem for H-unitary matrices with applications to Hermitian Toeplitz matrices (1988) (3)
On H-contractions and the extension problem for hermitian block toeplitz matrices (1989) (3)
On Bernstein type inequalities and a weighted Chebyshev approximation problem on ellipses (1990) (2)
The Role of Shear in Rifting (2013) (2)
A look-ahead variant of TFQMR (1994) (2)
Large-Scale Matrix Computations (2006) (2)
On polynomial preconditioning for indefinite Hermitian matrices (1989) (2)
Power Grid Analysis Using a Flexible Conjugate Gradient Algorithm with Sparsification (2)
The Block-QMR Method for the Solution of Multiple Radiation and Scattering Problems in Structural Ac (1997) (2)
Iterative solution of indefinite systems arising in large-scale optimization by the symmetric QMR algorithm (1994) (2)
Algorithms for augmented device simulation models incorporating IV continuation and circuit element equations (1994) (1)
Acta Numerica 2003: Model reduction methods based on Krylov subspaces (2003) (1)
Special Section: 2010 Copper Mountain Conference (2011) (1)
Modeling and Simulation of Control Dynamics in Optical Transport Systems (2002) (1)
Block quasi-minimal residual iterations for non-Hermitian linear systems (1994) (1)
USING ZOLOTAREV ’ S RATIONAL APPROXIMATION FOR COMPUTING THE POLAR , SYMMETRIC EIGENVALUE , AND SINGULAR VALUE DECOMPOSITIONS (2015) (1)
QMRPACK user`s guide (1994) (1)
Optimal Chebyshev polynomials on ellipses in the complex plane (1989) (0)
A method of laser beam welding of components (1993) (0)
On Adaptive Weighted (1992) (0)
Circuit Simulation (0)
A restricted signature normal form for Hermitian matrices, quasi-spectral decompositions, and applications (1993) (0)
Course ” The Power of Polynomials and How To Use Them “ 28 March 2007 (2007) (0)
ORDER REDUCTION OF TRULY LARGE-SCALE LINEAR DYNAMICAL SYSTEMS (2007) (0)
Electronic Circuit Simulation and the Development of New Krylov-Subspace Methods (2019) (0)
Explicitly solvable complex Chebyshev approximation problems related to sine polynomials (1989) (0)
New bernstein type inequalities for polynomials on ellipses (1991) (0)
N A ] 6 O ct 2 00 4 Padé-Type Model Reduction of Second-Order and Higher-Order Linear Dynamical Systems (2003) (0)
Editorial (1994) (0)
Simulation of unsteady incompressible flows using temporal adaptation and dynamic remeshing (1982) (0)
BY PADE APPROXIMATION BASED MODEL-REDUCTION TECHNIQUES (2003) (0)
Circuit analyzing device and method (1995) (0)
A polynomial-time algorithm for fractional programs with convex constraints (1994) (0)
On computer aided modeling of photonic systems and networks (2002) (0)
Control System Concepts at the NRAO 12 M Telescope (1993) (0)

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Roland W. Freund's Academic­Influence.com Rankings

Roland W. Freund's Degrees

Why Is Roland W. Freund Influential?

Roland W. Freund's Published Works

Published Works

Roland W. Freund's AcademicInfluence.com Rankings