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- Costanza Conti, Rossana Morandi
- Computing
- 1996

A local scheme for piecewiseC 1-Hermite interpolation is presented. The interpolant is obtained patching together cubic with quadratic polynomial segments; it is co-monotone and/or co-convex with the… (More)

- Maria Grazia Gasparo, Rossana Morandi
- Computing
- 1991

An algorithm to construct a monotonicity preserving cubicC 1 interpolant without modification of the assigned slopes is proposed. AnO(h 4) convergence result is obtained when exact function and… (More)

In this paper we continue our earlier research [4] aimed at developing efficient methods of local approximation suitable for the first stage of a spline based two-stage scattered data fitting… (More)

- Costanza Conti, Rossana Morandi, Christophe Rabut, Alessandra Sestini
- Numerical Algorithms
- 2001

This paper presents a data reduction method for functional data. Starting with noisy or not noisy data, we first define a function f, called the “reference function”, as a cubic smoothing spline… (More)

- Rossana Morandi, Alessandra Sestini
- The Visual Computer
- 1999

2 continuous convexity-preserving parametric curves in ℝ2 is presented. The control point form method, which was developed in the field of numerical grid generation, is used here to construct… (More)

- Costanza Conti, Rossana Morandi, Christophe Rabut
- Applied Mathematics and Computation
- 2008

- Costanza Conti, Rossana Morandi, Rosa Maria Spitaleri
- Applied Mathematics and Computation
- 2005

To produce grids conforming to the boundary of a physical domain with boundary orthogonality features, algebraic methods like transfinite interpolating schemes can be profitably used. Moreover, the… (More)

- Oleg Davydov, Rossana Morandi, Alessandra Sestini
- Computer Aided Geometric Design
- 2006

We suggest a local hybrid approximation scheme based on polynomials and radial basis functions, and use it to improve the scattered data fitting algorithm of [7]. Similar to that algorithm, the new… (More)

- Rossana Morandi
- Computing
- 1992

A blending function technique with a monovariate interpolating scheme is proposed to provide an initial approximation to the solution of the Poisson problem. Such an approximation combines the… (More)

- Rossana Morandi, Costanza Conti
- Computing
- 1994

An algorithm for the problem of transforming a regular array of tabular points into a monotonous array of tabular points is presented. Es wird ein Algorithmus angegeben, der ein reguläres Feld von… (More)

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