Theoretical scheme on numerical conformal mapping of unbounded multiply connected domain by fundamental solutions method.
Tracking poles and representing Hankel operators directly from data.
Tracking through singularities using sliding mode differentiators
In this work, an alternative solution to the tracking problem for a SISO nonlinear dynamical system exhibiting points of singularity is given. An inversion-based controller is synthesized using the Fliess generalized observability canonical form associated to the system. This form depends on the input and its derivatives. For this purpose, a robust exact differentiator is used for estimating the control derivatives signals with the aim of defining a control law depending on such control derivative...
Tractability of multivariate problems for weighted spaces of functions
We survey recent results on tractability of multivariate problems. We mainly restrict ourselves to linear multivariate problems studied in the worst case setting. Typical examples include multivariate integration and function approximation for weighted spaces of smooth functions.
Tractability of tensor product linear operators in weighted Hilbert spaces.
Transformed Linear Chebyshev Approximation.
Transformed Linear Chebyshev Approximation. (Short Communication).
Transitivity of proximinality and norm attaining functionals
We study the question of when the set of norm attaining functionals on a Banach space is a linear space. We show that this property is preserved by factor reflexive proximinal subspaces in spaces and generally by taking quotients by proximinal subspaces. We show, for (ℓ₂) and c₀-direct sums of families of reflexive spaces, the transitivity of proximinality for factor reflexive subspaces. We also investigate the linear structure of the set of norm attaining functionals on hyperplanes of c₀ and...
Tres teoremas de aproximación en el espacio Lp mediante polinomios de coeficientes enteros.
Trianguläre Interpolation.
Trigonometric approximation by Nörlund type means in -norm
We show that the same degree of approximation as in the theorems proved by L. Leindler [Trigonometric approximation in -norm, J. Math. Anal. Appl. 302 (2005), 129–136] and P. Chandra [Trigonometric approximation of functions in -norm, J. Math. Anal. Appl. 275 (2002), 13–26] is valid for a more general class of lower triangular matrices. We also prove that these theorems are true under weakened assumptions.
Trigonometric approximation in the norms and seminorm
Trigonometric interpolation for bivariate functions of bounded variation
Trigonometric Polynomial Approximation in the L1-Form.
Trigonometrie Approximation with Exponential Error Orders. I. Construction of Asymptotically Optimal Processes; Generalized de la Vallée Poussin Sums.
Trivariate approximation operators on cube by parametric extensions.
Truncated gradient flows of the van der Waals free energy.
Truncation Error Analysis by Means of Approximant Systems and Inclusion Regions.
Truncation Error Bounds for Modified Continued Fractions with Applications to Special Functions.
Tubular NURB surfaces with boundary control.