Teknillinen korkeakoulu. Matematiikan laitos

Authored works

Tutkimus vuosina 1970-1977 valmistuneiden matematiikkainsinöörien työhönsijoittumisesta

Works contributed to

A [vartheta] method-based numerical simulation of crack growth in linear elastic fracture
A benchmark study of elliptic and hyperbolic shells of revolution
A central limit theorem for Markov random walks
A characterization of powder bounded operations
A class of nonlinear multistep methods
A coarse-to-fine strategy for maximum a posteriori estimation in limited-angle computerized tomography
A conservation property for general GI/G/1-queues with an application to tandem queues
A direct Liapunov approach to Volterra integrodifferential equations
A distributional Walsh spectral analysis
A family of C⁰ finite elements for Kirchhoff plates : 2, Numerical results
A general failure model : optimal replacement with state dependent replacement and failure costs
A Hermitian Lanczos method for normal matrices
A lower bound for the differences of powers of linear operators
A matrix nearness problem related to iterative methods
A method to determine the thermal conductivity from measured temperature profiles
A multigrid version of a simple finite element method for the stokes problem
A neutral FDE is similar to the product of an ODE and a shift
A new theoretical approach to absorbing layers
A nonexistence theorem for explicit a-stable methods
A nonlinear structured population model of tumor growth with quiescence
A nonlinear Volterra equation with rapidly decaying solutions
A nonlinear Volterra integral equation with square integrable solutions
A note [on] a nonconvolution Volterra resolvent
A note on a Volterra equation with several nonlinearities
A note on continuous dependence of solutions of Volterra integral equations
A note on Picard-Lindelöf iteration
A note on polynomial approximation on Cantor-type sets of capacity zero
A note on the jump condition in systems described by differential equations linear with respect to control
A note on Volterra equations in a Hilbert space
A patient-age, tumour-size structured model for detection and mortality of female breast cancer
A posteriori error analysis of the linked interpolation technique for plate bending problems
A posteriori error estimates for some problems in linear elasticity
A posteriori error estimates for the plate bending Morley element
A posteriori error estimation for linear elliptic problems with mixed boundary conditions
A posteriori estimates for the stokes eigenvalue problem
A priori and a posteriori error analysis of finite element methods for plate models
A refined error analysis of MITC plate elements
A remark on the Hille-Yoshida generator theorem
A remark on the Kelvin transform and a non-linear partial differential equation
A risk-sensitive model of two-stage stochastic nonlinear programming
A stratification of the set of normal matrices
A trigonometric analysis of angles in finite Desarguesian planes
Accelerating with rank-one updates
Algebraic approach to absorbing boundary conditions : 2, Numerical results
Algebraic, analytic and stochastic concepts on the dyadic (2-series) field with some applications to time series
Algebraizations of the first order logic
Also the transposed mixed sensitivity l[sup 1]-minimization problem has a rational solution
An alternative to the Ritz pairs with the EN subspace method
An analysis of asymptotic consistency error in a parameter dependent model problem
An analysis of finite element locking in a parameter dependent model problem
An analysis of the discontinuous Galerkin method for a scalar hyperbolic equation
An asymptotic problem for a positive definite operator-valued Volterra kernel
An endomorphism identity encompassing the Cayley-Hamilton equation
An example of the use of maximum principle to determine the qualitative character of discrete dynamic programming results
An existence result for a nonlinear Volterra integral equation in Hilbert space
An extension of the Lévy characterzation to fractional Brownian motion
An h-p-n adaptive finite element scheme for shell problems
An inequality for positive definite Volterra kernels
An unconditionally stable mixed discontinuous Galerkin method
Analysing singularities of a benchmark problem
Analysis of a bilinear finite element for shallow shells : 1, Approximation of inextensional deformations
Analysis of reduced finite element schemes in parameter dependent elliptic problems
Analysis of the convergence of mixed finite element methods
Approximation of the Laplace transform by the Cayley transform
Aspects of nonnormality for iterative methods
Bargaining on whales : a differential game model with Pareto optimal equilibria
Bayesian approach to detection of anomalies in electrical impedance tomography
Bemerkung zur Definition geometrischer Mannigfaltigkeiten
Bilipschitz extendability in the plane
Bounded solutions of a Volterra equation
Cartels and dynamic contracts in sharefishing
Cellular automata for contour dynamics
Chaotic regimes in a dynamical system of the type many predators one prey
Circlets and diagonalization of real linear operators
CLICAL user manual : complex number, vector space and Clifford algebra calculator for MS-DOS personal computers
Comparison and scaling methods for performance analysis of stochastic networks
Computational comparison of knapsack-algorithms
Conformal transformations and Clifford algebras
Conservativity of time-flow invertible and boundary control systems
Construction of optimal affine incentive strategies for linear-quadratic Stackelberg games
Convergence of dynamic iteration methods for initial value problems
Convergence of Krylov-methods for sums of two operators
Convergence of solutions of a non-local phase-field system
Convolution operators in a fading memory space : the critical case
Coprime factorizations and optimal control of abstract linear systems
Das eigentliche Pfaffsche Problem in Nevanlinnascher Darstellung
Data reduction and domain truncation in electromagnetic obstacle scattering
Der hybride Zerfall eines doppelten Eigenwertes
Derivation of a discrete maximum principle from the continuous maximum principle
Differential-algebraic systems and formal integrability
Diffusive tomography methods : special boundary conditions and characterization of inclusions
Discrete maximum principles for FEM solutions of some nonlinear elliptic interface problems
Discrete time H[infinity] algebraic Riccati equations
Discrete time Riccati equations and invariat subspaces of linear operators
Dynamic iteration methods applied to linear DAE systems
Dynamical electric wire tomography : time series approach
Einbettung in eine geometrische Mannigfaltigkeit
Einspannung in einer affinen Mannigfaltigkeit
Elementary proof of Pohlke's theorem
Elliptic equations with nonstandard growth involving measure data
EN scheme for eigenvalue problems with nontrivial preconditioning
Energiapäätökseen liittyviä tekijöitä : voimalaitosinvestointien välisistä vaikutuksista
Energy estimates and asymptotic analysis in the theory of shells
Energy estimates relating different linear elastic models of a thin cylindrical shell : (1), The membrane-dominated case
Energy optimal xenon shutdown
Energy optimal xenon shutdown for boron controlled reactors
Enlargement of filtration and additional information in pricing models : a Bayesian approach
Equilib[r]ia and threats in a fishery management game
Error bounds for the approximation of the stokes problem using bilinear/constant elements on irregular quadrilateral meshes
Error control in terms of linear functionals based on gradient averaging techniques
Examples of uniformly quasiregular mappings
Existence and regularity of solutions of the Korteweg - de Vries equation and generalizations
Exponentially fitted multistep methods constructed by generalized Hermite-Birkhoff interpolation
Fast solvers of the Lippmann-Schwinger equation
Forecasting as information processing communication
Function Hopf algebra and pseudodifferential operators on compact Lie groups
Game theory models of dynamic bargaining and contracting in fisheries management
Gaussian bridges
Gehring lemma in metric spaces
Geometric ergodicity and R-positivity for general Markov chains
Geometric properties of metric measure spaces and Sobolev-type inequalities
Global a posteriori error estimates for convection-reaction-diffusion problems
Global higher integrability for nonlinear parabolic partial differential equations in nonsmooth domains
Global higher integrability for parabolic quasiminimizers in nonsmooth domains
Global integrability and degenerate quasilinear elliptic equations
Goal-oriented error estimates based on different FE-spaces for the primal and the dual problem with applications to fracture mechanics
Graph properties for splittings with grounded Laplacian matrices
Grundeigenschaften zweistufiger Tensoren
Hankel and Toeplitz operators on nonseparable Hilbert spaces : further results
Harnack estimates for supersolutions to nonlinear degenerate parabolic equation
Harnack's inequality for a nonlinear eigenvalue problem on metric spaces
Hessenberg matrices in Krylov subspaces and the computation of the spectrum
High-order finite element tools for shell problems
Hopf bifurcation for functional and functional differential equations with infinite delay
How fast can iterative methods be?
Hölder regularity for a linear fractional evolution equation
Ideal GMRES can be bounded from below by three factors
Implementations of the revised simplex method
Infinite-dimensional linear systems, optimal control and algebraic Riccati equations
Integrability properties of resolvents of Volterra equations
Investment planning and optimization under uncertainty
Johdatus dynaamisten pelien teoriaan
Johdatus monitavoitteiseen optimointiin
Krylov subspace methods of EN type for a nonsymmetric linear system and its spectrum
L-2 -solutions of some integral equations with positive definite kernels
L[sup P](0,[ääretön])-solutions of a linear Volterra intergrodifferential equation
Lahden lasitehtaan kuljetussysteemi : loppuraportti
Lectures on iterative methods : the sublinear case
Lie groups of motor integrals of generalized Kepler motion
Limit spectrum of discretely converging operators
Linear acceleration of Picard-Lindelöf iteration
Local analyticity and applications to stability problems for Volterra equations in weighted L1-spaces
Local operators in Krylov subspaces
Matemaatikkopäivät 1983 Otaniemi, Espoo : esitelmät : Osa 2
Mathematical and historical reflections on the lowest-order finite element models for thin structures
Matrix valued versions of a result of von Neumann with an application to time discretization
Maximum principle for a class of processes described by time discontinuous differential equations
Meromorphic resolvents and power bounded operators
MIMO l[sup 1]-optimization with a scalar control
Minimax control of distributed discrete time systems through spectral factorization
Model reduction of state space systems via EN updating scheme
Moser's method for a nonlinear parabolic equation
Moser's method for minimizers on metric measure spaces
Multigrid methods for a stabilized Reissner-Mindlin plate formulation
Myopic Stackelberg equilibria and social coordination in a share contract fishery
Nitsches method for general boundary conditions
Nonexpansive prolongations and differences schemes for the advection equation
Nonnegative operators and the method of sums
Note on a non-linear eigenvalue problem
Numeerisen analyysin seminaari keväällä 1980
Numerical linear algebra techniques for spectral approximation and applications
Numerical solution and structural analysis of differential-algebraic equations
On a certain nonlinear evolution equation
On a class of adaptive integration methods for ordinary differential equations
On a formula related to the Cayley-Hamilton equation
On a linear Volterra equation in a Hilbert space
On a mixed finite element method for the Stokes problem in R[sup 3]
On a neutral functional differential equation in a fading memory space : 1
On a non-linear eigenvalue problem : stability and concavity
On a nonconvolution Volterra resolvent
On a nonlinear Volterra integral equation in a Banach space
On a nonlinear Volterra integral equation perturbed by a function of infinite total variation
On a nonlinear Volterra integrodifferential equation with a nonintegrable perturbation
On a quasilinear parabolic integrodifferential equation
On a statistical "trend-test"
On a stochastic parabolic integral equation
On a Tauberian condition for bounded linear operators
On a Volterra integrodifferential equation with several nonlinearities
On acute and nonobtuse simplicial partitions
On affine incentives for dynamic decision problems
On an integrodifferential Volterra equation with a maximal monotone mapping
On an inverse subordinator storage
On certain properties for iteration of Toeplitz operators
On classes of p-summing operators in Banach lattices
On compactness of a linear operator on the Banach space of bounded functions R->C
On corner irregularities that arise in hyperbolic shell membrane theory
On distributional dyadic analysis : 2
On induced linear mappings in exterior algebra
On modeling with restricted regression analysis
On multiplicatively stable smooth sequence spaces and permanence of the corresponding [lambda]-nuclearity
On multistep methods for nonlinear initial value problems with an application to minimization of convex functionals
On non-linear Rayleigh quotients
On nonlinear discretization methods for ordinary differential equations
On nonlinear Volterra equations with nonconvolution kernels in abstract spaces
On nonlinear Volterra equations with nonintegrable kernels
On numerical methods for stiff differential equations based on information of the Jacobian matrix
On positive, nonincreasing resolvents of Volterra equations
On primitive idempotents of Clifford algebras
On quenching with logarithmic singularity
On regular solutions for a variational problem defined in Sobolev spaces
On resolvent conditions and stability estimates
On some abstract integral equations
On some integral and integro-differential eguations in a Hilbert space
On some integrodifferential equations in a Hlbert space
On some linearizable nonlinear multistep methods
On some nonintegrable Volterra kernels with integrable resolvents including some applications to Riesz potentials
On some parabolic integrodifferential problems
On stochastic multi-stage decision processes
On symbol analysis of periodic pseudodifferential operators
On tensor products of locally convex A-spaces with applications to [lambda]-nuclearity
On the [alpha]-properties and quasi-stationary distributions of semi-Markov processes
On the [alpha]-properties of continuous time Markow processes
On the affine invariants of linear transformations
On the approximation of a linear operator on the Banach space of bounded functions R->C with a linear operator of finite rank
On the approximation of a nonstationary birth-death process
On the asymptotic behavior of finite energy solutions of an abstract integral equation
On the asymptotic behavior of the solutions of a nonlinear Volterra equation
On the asymptotic behaviour of solutions of nonlinear integral equations in Banach spaces
On the asymptotic spectra of the bounded solutions of a nonlinear Volterra equation
On the asymptotic spectrum of a convolution
On the asymptotics of a nonlinear scalar Volterra integrodifferential equation
On the behaviour of global errors at infinity in the numerical integration of stable initial value problems
On the boundedness and the asymptotic behavior of the solutions of a Volterra equation
On the boundedness of solutions of Volterra equations
On the consctruction of arbitrary order schemes for many dimensional wave equation
On the equation div(vektorin grad u pituus potenssiin p-2 kertaa grad u) + lambda kertaa u:n pituus potenssiin p-2 kertaa u = 0
On the equivalence of regularity criteria for triangular and tetrahedral finite element partitions
On the existence of solutions of nonlinear Volterra equations in abstract spaces
On the four-block model matching problem in l[sup 1]
On the holomorphic properties of the nonlinearity in a Volterra equation
On the integrability of the resolvent of a Volterra equation
On the logarithmic norms of a matrix
On the minimum work criterion in optimal control models of left ventricular ejection
On the moments of the first entrance time distribution for a Markow chain on a general state space
On the numerical solution of involutive ordinary differential systems : higher order methods
On the Poisson equation for [phi]-recurrent Markov chains
On the properties for iteration of a compact operator with unstructured perturbation
On the simulation of multibody systems with holonomic constraints
On the solution of a linear retarded differential equation
On the spectrum of the symmetric relations for the canonical systems of differential equations in Hilbert space
On the stability of a certain difference scheme
On the stability of a Volterra intergral equation with a monotone nonlinearity
On the stability of linear differential-difference equations
On the stable and unstable subspaces of a critical functional differential equation
On the stable H[sup 2] and H[infinity] infinite-dimensional regular problems and their [algebraic] Riccati equations
On variational integrals in "the extended borderline case"
On Volterra equations with nonconvolution kernels
Optimal damping set of a membrane and topology discovering shape optimization
Piecewise polynomial collocation methods for linear Volterra integro-differential equations with weakly singular kernels
Pole assignment problems for error bounds for GMRES
Positive definite measures with applications to a Volterra equation
Positive quadratures for Volterra equations
Power bounded prolongations and Picard-Lindelöf iteration
PRIME : preference ratios in multiattribute evaluation
Proceedings of the Summer School in Numerical Analysis at Helsinki 1987
Pseudodifferential calculus on compact Lie groups
Pseudodifferential calculus on compact Lie groups and homogeneous spaces
Päätöksenteon tukimalli energiapoliittisten vaihtoehtojen arvioinnissa
Quadratic optimal control of a delay equation : 2, The unstable case
Quasinilpotency of the operators in Picard-Lindelöf iteration
Quenching and blowup problems for reaction diffusion equations
Quiescence as an explanation of Gompertzian tumor growth
Quiescence in structured population dynamics : applications to tumor growth
R-boundedness and multiplier theorems
R-boundedness is necessary for multipliers on H[sup 1]
Raportteja / STAKES
Rational approximations of transfer functions of some viscoelastic rods, with applications to robust control
Regularity and convergence results in the calculus of variations on metric spaces
Regularity properties of solutions of fractional evolution equations
Remarks on Picard-Lindelöf iteration
Remarks on the contractivity of variable one-leg formulas
Remarks on the convergence of waveform relaxation method
Remarks on the growth of the resolvent operators for power bounded operators
Remarks on the Sobolev regularity of wavelets and interpolation schemes
Remarks on time discretization of contraction semigroups
Report/ Institute of Mathematics. Helsinki University of Technology. A
Resolvent and polynomial numerical hull
Riccati equations for H[sup ääretön] discrete time systems : Part 2
Risk aversion in optimizing with stochastic nonlinear profit functions
Rotations of the Euclidean plane about two points
Schauder estimates for equations with fractional derivatives
Self-improving phenomena in the calculus of variations on metric space
Semi-Markov processes on a general state space : [alpha]-theory and quasi-stationarity
Semigroups generated by a convolution equation
Semigroups generated by a neutral functional differential equation
Sensitivity l[sup 1]-minimization with boundary zeros or poles
Sets of convergence and stability regions
Sharp upper global a posteriori error estimates for nonlinear elliptic variational problems
Simplicial finite elements in higher dimensions
Smooth operator-valued symbol analysis
Smoothness in fractional evolution equations and conservation laws
Some energy estimates for a nondifferentiated Volterra equation
Some experiments on partitioning big sparse graphs
Some notes on perturbations of differential-algebraic equations
Some remarkable sine and cosine functions
Some remarks on polynomial acceleration of linear iterative processes
Some remarks on the method of sums
Some results in spectral analysis and synthesis at infinity
Some well posed functional equations which generate semigroups
Spectral decomposition and invariant manifolds for some partial differential functional equations
Spinors and Brauer-Wall groups
Stability and accuracy of time discretizations for initial value problems
Stability criteria for linear systems of differential-difference equations of neutral type
Stability of quasiminimizers of the p-Dirichlet integral with varying p on metric spaces
Stabilization of a distributed system with a stable compensator
Stabilization of an overloaded queueing network using measurement-based admission control
Stagnation zones for A-harmonic functions on canonical domains
Strong ratio limit theorems for [phi]-irreducible Markov chains
Strong regularity of a family of face-to-face partitions generated by the longest-edge bisection algorithm
Structural design of control systems
Subspaces of stable and unstable solutions of a functional differential equation in a fading memory space : the critical case
Superconvergence and postprocessing of MITC plate elements
Systems of nonlinear Volterra equations with positive definite kernels
Systems research reports / Helsinki University of Technology. Institute of Mathematics. A
Tensoralgebra auf einer affinen Mannigfaltigkeit
Termohiertämön automaatioinvestointikohteiden tutkiminen LP-mallilla
The Blagoveš̌̌̌̌čenskiĭ identity and the inverse scattering problem
The complete form of a differential algebraic equation
The differential equation div(/[nabla]u/n-2 [nabla]u) = 0 in n-dimensional space
The discrete maximum principle for linear simplicial finite element approximations of a reaction-diffusion problem
The dynamics of defect ensembles in one-dimensional cellular automata
The first locking-free plane-elastic finite element : historia mathematica
The integrated volatility implied by option prices : a Bayesian approach
The kink of cellular automaton rule 18 performs a random walk
The mixed sensitivity minimization problem has a rational l[sup 1]-optimal solution
The nonstandard quadratic cost minimization problem for abstract linear systems
The null space and the range of a convolution operator in a fading memory space
The piecewise polynomial collocation method for nonlinear weakly singular Volterra equations
The problem of membrane locking in finite element analysis of cylindrical shells
The real linear eigenvalue problem in C[sup n]
Theory for iterative solution of large dynamical systems using parallel computation
Three spheres theorem for p-harmonic functions
Time optimal control of the process x = f (x,u) with f changing at intervals
Toeplitz preconditioning of Toeplitz matrices : an operator theoretic approach
Translation-invariant operators on spaces of vector-valued functions
Two-sided a posteriori estimates for the generalized stokes problem
Uniqueness of electromagnetic inversion by local surface measurements
Variational methods and quasiregular mappings
Vector-valued wavelets and the hardy space H[sup 1](R[sup n];X)
Waveform relaxation always converges for RC-circuits
Waveform relaxation for linear RC-circuits
Waveform relaxation for multibody dynamics
Well-posed discrete time linear systems and their feedbacks
What norm should one use in mixed sensitivity minimization?
When are two C[sub O]-semigroups related by a bounded perturbation?
Workshop on Non-semimartingale techniques in mathematical finance : Helsinki University of Technology, May 26-28, 2009 : abstracts
Zur Theorie der lieschen Ableitung
Über affine Mannigfaltigkeiten
Über affine Multivektoren
Über anholonome Vektorsysteme
Über die Metrisierung eines affinen Raumes
Über die operatoren Rot und Div auf einer differenzierbaren Mannigfaltigkeit
Über die Ränge eines affinen Tensors
Über komplexe Affine und unitäre Räume
Über Zusammenhänge auf differenzierbaren Mannigfaltigkeiten

Teknillinen korkeakoulu. Matematiikan laitos

Authored works

Works contributed to

Works about Teknillinen korkeakoulu. Matematiikan laitos