Research output per year
Research output per year
- 49 results
Search results
-
2016
Polynomials and lemniscates of indefiniteness
Huhtanen, M. & Nevanlinna, O., Jun 2016, In: Numerische Mathematik. 133, 2, p. 233-253 21 p.Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus) -
2015
Factoring Matrices into the Product of Circulant and Diagonal Matrices
Huhtanen, M. & Perämäki, A., 26 Mar 2015, In: Journal of Fourier Analysis and Applications. 21, 5, p. 1018-1033 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
14 Citations (Scopus) -
2014
Function theory and spectral mapping theorems for antilinear operators
Huhtanen, M. & Perämäki, A., 2014, In: JOURNAL OF OPERATOR THEORY. 72, 2, p. 451-473 23 p.Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus) -
2013
Orthogonal polynomials of the R-linear generalized minimal residual method
Huhtanen, M. & Perämäki, A., Mar 2013, In: Journal of Approximation Theory. 167, p. 220-239 20 p.Research output: Contribution to journal › Article › Scientific › peer-review
5 Citations (Scopus) -
2012
Computational geometry of positive definiteness
Huhtanen, M. & Seiskari, O., 1 Oct 2012, In: Linear Algebra and Its Applications. 437, 7, p. 1562-1578 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus) -
Numerical solution on the R-linear Beltrami equation
Huhtanen, M. & Perämäki, A., 2012, In: Mathematics of Computation. 81, 277, p. 387-397Research output: Contribution to journal › Article › Scientific › peer-review
9 Citations (Scopus) -
2011
Approximate factoring of the inverse
Byckling, M. & Huhtanen, M., 2011, In: Numerische Mathematik. 117, 3, p. 507-528Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
Differential geometry of matrix inversion
Huhtanen, M., 2011, In: Mathematica Scandinavica. 107, 2, p. 267-284Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Scopus) -
Real linear operator theory and its applications
Huhtanen, M. & Ruotsalainen, S., 2011, In: Integral Equations and Operator Theory. 69, 1, p. 113-132Research output: Contribution to journal › Article › Scientific › peer-review
11 Citations (Scopus) -
2010
Matrix subspaces and determinantal hypersurfaces
Huhtanen, M., 2010, In: Arkiv för Matematik. 48, 1, p. 57-77Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus) -
Rational approximation of the unitary exponential
Huhtanen, M., 2010, In: IMA Journal of Numerical Analysis. 30, 2, p. 512-524Research output: Contribution to journal › Article › Scientific › peer-review
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2008
Approximating ideal diffractive optical systems
Huhtanen, M., 2008, In: Journal of Mathematical Analysis and Applications. p. 53-62Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Scopus) -
2007
Approximating real linear operators
Huhtanen, M. & Nevanlinna, O., 2007, In: Studia Mathematica. 179, 1, p. 7-25Research output: Contribution to journal › Article › Scientific › peer-review
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Approximations with real linear modules
Huhtanen, M., 2007, In: Numerical Functional Analysis and Optimization. 28, 9-10, p. 1113-1137Research output: Contribution to journal › Article › Scientific › peer-review
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Averaging operators for exponential splittings
Huhtanen, M., 2007, In: Numerische Mathematik. 106, 3, p. 511-528Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus) -
Energy conservation and unitary approximation numbers
Huhtanen, M., 2007, In: Journal of Mathematical Physics. 48Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Scopus) -
Factoring matrices into the product of two matrices
Huhtanen, M., 2007, In: BIT Numerical Mathematics. 47, p. 793-808Research output: Contribution to journal › Article › Scientific › peer-review
12 Citations (Scopus) -
How real is your matrix?
Huhtanen, M., 2007, In: Linear Algebra and Its Applications. 424, 1SPECISS, p. 304-319Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
Real linear matrix analysis
Huhtanen, M. & Nevanlinna, O., 2007, In: Banach Center Publications. 75, p. 171-189Research output: Contribution to journal › Article › Professional
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The real linear resolvent and cosolvent operators
Huhtanen, M. & Nevanlinna, O., 2007, In: JOURNAL OF OPERATOR THEORY. 58, 2, p. 229-250Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus) -
2006
A minimum residual algorithm for solving linear systems
Huhtanen, M. & Nevanlinna, O., 2006, In: BIT Numerical Mathematics. 46, p. 533-548Research output: Contribution to journal › Article › Scientific › peer-review
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Real linear Kronecker product operations
Huhtanen, M., 2006, In: Linear Algebra and Its Applications. 418, p. 347-361Research output: Contribution to journal › Article › Scientific › peer-review
7 Citations (Scopus) -
2005
Aspects of nonnormality for iterative methods
Huhtanen, M., 2005, In: Linear Algebra and Its Applications. 394, p. 119-144Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Scopus) -
The real linear eigenvalue problem in Cn
Huhtanen, M. & von Pfaler, J., 2005, In: Linear Algebra and Its Applications. 394, p. 169-199Research output: Contribution to journal › Article › Scientific › peer-review
5 Citations (Scopus) -
2004
Solution Methods for R-Linear Problems in Cn
Eirola, T., Huhtanen, M. & von Pfaler, J., 2004, In: SIAM Journal on Matrix Analysis and Applications. 25, 3, p. 804-828Research output: Contribution to journal › Article › Scientific › peer-review
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2003
Orthogonal polyanalytic polynomials and normal matrices
Huhtanen, M., 2003, In: Mathematics of Computation. 72, p. 355-373Research output: Contribution to journal › Article › Scientific › peer-review
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The Real Linear Eigenvalue Problem in C
Huhtanen, M. & von Pfaler, J., 2003, Espoo, p. 32, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A463).Research output: Working paper › Professional
5 Citations (Scopus) -
Two splittings of a square matrix
Huhtanen, M., 2003, In: BIT Numerical Mathematics. 43, p. 563-570Research output: Contribution to journal › Article › Scientific › peer-review
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2002
A Hermitian Lanczos method for normal matrices
Huhtanen, M., 2002, In: SIAM Journal on Matrix Analysis and Applications. 23, p. 1092-1108Research output: Contribution to journal › Article › Scientific › peer-review
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Aspects of nonnormality for iterative methods
Huhtanen, M., 2002, Espoo, p. 25, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A453).Research output: Working paper › Professional
3 Citations (Scopus) -
Combining normality with the FFT techniques
Huhtanen, M., 2002, Espoo, p. 24, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A451).Research output: Working paper › Professional
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Exclusion and inclusion regions for the eigenvalues of a normal matrix
Huhtanen, M. & Larsen, R. M., 2002, In: SIAM Journal on Matrix Analysis and Applications. 23, p. 1070-1091Research output: Contribution to journal › Article › Scientific › peer-review
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On generating discrete orthogonal bivariate polynomials
Huhtanen, M. & Munk Larsen, R., 2002, In: BIT - Numerical Mathematics. 42, p. 393-407Research output: Contribution to journal › Article › Scientific › peer-review
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Solution methods for R-linear problems in Cn
Eirola, T., Huhtanen, M. & von Pfaler, J., 2002, Espoo, p. 32, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A454).Research output: Working paper › Professional
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2001
A matrix nearness problem related to iterative methods
Huhtanen, M., 2001, In: SIAM Journal on Numerical Analysis. 39, p. 407-422Research output: Contribution to journal › Article › Scientific › peer-review
7 Citations (Scopus) -
2000
A Hermitian Lanczos Method for Normal Matrices
Huhtanen, M., 2000, Espoo, p. 21, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A427).Research output: Working paper › Professional
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Minimal Decompositions and iterative methods
Huhtanen, M. & Nevanlinna, O., 2000, In: Numerische Mathematik. 86, p. 257-281Research output: Contribution to journal › Article › Scientific › peer-review
13 Citations (Scopus) -
1999
A matrix nearness problem related to iterative methods
Huhtanen, M., 1999, Espoo, p. 16, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A422).Research output: Working paper › Professional
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A stratification of the set of normal matrices
Huhtanen, M., 1999, Espoo, p. 15, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A414).Research output: Working paper › Professional
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Ideal GMRES can be bounded from below three factors
Huhtanen, M., 1999, Espoo, p. 21, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A412).Research output: Working paper › Professional
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Iterative model reduction of large state-space systems
Huhtanen, M., 1999, In: Applied Mathematics and Computation. 9, 2, p. 245-263Research output: Contribution to journal › Article › Scientific › peer-review
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Pole assignment problems for error bounds for GMRES
Huhtanen, M., 1999, Espoo, p. 16, (Helsinki University of Technology Institute of Mathematics Research Reports; no. 418).Research output: Working paper › Professional
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1997
EN Scheme for Eigenvalue Problems with Nontrivial Preconditioning
Huhtanen, M., 1997, Espoo, p. 21, (Helsinki University of Technology, Institute of Mathematics, Research reports; no. A378).Research output: Working paper › Professional
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Model Reduction of State Space Systems via EN Updating Scheme
Huhtanen, M., 1997, Espoo, p. 19, (Helsinki University of Technology, Institute of Mathematics, Research Reports; no. A379).Research output: Working paper › Professional
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Numerical Linear Algebra Techniques for Spectral Approximation and Applications
Huhtanen, M., 1997, Espoo, p. 10, (Helsinki University of Technology, Institute of Mathematics, Research Reports; no. A380).Research output: Working paper › Professional
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1996
An alternative to the Ritz Pairs with the EN Subspace Method
Huhtanen, M., 1996, Espoo, p. 14, (Helsinki University of Technology, Institute of Mathematics, Research Reports; no. A365).Research output: Working paper › Professional
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Krylov Subspace Methods of EN Type for a Nonsymmetric Linear System and its Spectrum
Huhtanen, M., 1996, Espoo, p. 13, (Helsinki University of Technology, Institute of Mathematics, Research reports; no. A364).Research output: Working paper › Professional
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Local operators in Krylov subspaces
Huhtanen, M., 1996, In: Numerical Functional Analysis and Optimization. 17, 1&2, p. 123-142Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus) -
1994
Local Operators in Krylov Subspaces
Huhtanen, M., 1994, Espoo, p. 25, (Helsinki University of Technology, Institute of Mathematics, Research Reports; no. A339).Research output: Working paper › Professional
2 Citations (Scopus)