Search Results - "Remogna, S."

Trivariate near-best blending spline quasi-interpolation operators by Barrera, D., Dagnino, C., Ibáñez, M. J., Remogna, S.

“…A method to define trivariate spline quasi-interpolation operators (QIOs) is developed by blending univariate and bivariate operators whose linear functionals…”
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On trivariate blending sums of univariate and bivariate quadratic spline quasi-interpolants on bounded domains by Remogna, S., Sablonnière, P.

“…The aim of this paper is to investigate, in a bounded domain of R 3 , two blending sums of univariate and bivariate C 1 quadratic spline quasi-interpolants…”
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Local C 2 -smooth spline quasi-interpolation methods by Barrera, D., Eddargani, S., Ibáñez, M.J., Remogna, S.

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Local C2-smooth spline quasi-interpolation methods by Barrera, D., Eddargani, S., Ibáñez, M.J., Remogna, S.

“…In this paper we construct new univariate local C2 quasi-interpolating splines having specific polynomial reproduction properties. The splines are directly…”
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Numerical solution of nonlinear Fredholm–Hammerstein integral equations with logarithmic kernel by spline quasi-interpolating projectors by Aimi, A., Leoni, M.A., Remogna, S.

“…Nonlinear Fredholm–Hammerstein integral equations with logarithmic kernel are here taken into account and numerically solved by spline quasi-interpolating…”
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Superconvergent methods based on quasi-interpolating operators for fredholm integral equations of the second kind by Allouch, C., Remogna, S., Sbibih, D., Tahrichi, M.

“…•New superconvergent degenerate kernel method, based on quasi-interpolants, for solving Fredholm integral equations of the second kind.•New superconvergent…”
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Low-degree spline quasi-interpolants in the Bernstein basis by Barrera, D., Eddargani, S., Ibáñez, M.J., Remogna, S.

“…•The referees’ comments have been incorporated into the new version of the manuscript, correcting many typos.•The structure of the paper has been improved and…”
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Spline quasi-interpolation in the Bernstein basis on the Powell–Sabin 6-split of a type-1 triangulation by Barrera, D., Eddargani, S., Ibáñez, M.J., Remogna, S.

“…In this paper, we provide quasi-interpolation schemes defined on a uniform triangulation of type-1 endowed with a Powell–Sabin refinement. In contrast to the…”
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On numerical solution of Fredholm and Hammerstein integral equations via Nyström method and Gaussian quadrature rules for splines by Barrera, D., Bartoň, M., Chiarella, I., Remogna, S.

“…Nyström method is a standard numerical technique to solve Fredholm integral equations of the second kind where the integration of the kernel is approximated…”
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h-Bernstein basis functions over a triangular domain by Lamberti, P., Lamnii, M., Remogna, S., Sbibih, D.

“…•New bivariate h-Bernstein basis on a triangular domain with a shape parameter h.•Interesting algebraic and geometric properties of the h-Bernstein…”
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On the construction of trivariate near-best quasi-interpolants based on C2 quartic splines on type-6 tetrahedral partitions by Barrera, D., Ibáñez, M.J., Remogna, S.

“…The construction of new quasi-interpolants (QIs) having optimal approximation order and small infinity norm and based on a trivariate C2 quartic box spline is…”
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On the construction of trivariate near-best quasi-interpolants based on C 2 quartic splines on type-6 tetrahedral partitions by Barrera, D., Ibáñez, M.J., Remogna, S.

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A trivariate near-best blending quadratic quasi-interpolant by Barrera, D., Dagnino, C., Ibáñez, M.J., Remogna, S.

“…In this paper, we construct a new trivariate spline quasi-interpolation operator. It is expressed as blending sum of univariate and bivariate C1 quadratic…”
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Curve network interpolation by C 1 quadratic B-spline surfaces by Dagnino, C., Lamberti, P., Remogna, S.

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On the construction of trivariate near-best quasi-interpolants based on quartic splines on type-6 tetrahedral partitions by Barrera, D, Ibanez, MJ, Remogna, S

“…The construction of new quasi-interpolants (QIs) having optimal approximation order and small infinity norm and based on a trivariate quartic box spline is…”
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Curve network interpolation by C1 quadratic B-spline surfaces by Dagnino, C., Lamberti, P., Remogna, S.

“…In this paper we investigate the problem of interpolating a B-spline curve network, in order to create a surface satisfying such a constraint and defined by…”
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Quasi-interpolation based on bivariate quadratic B-splines with multiple knots by Dagnino, C., Lamberti, P., Remogna, S.

“…Taking into account the results given in [1, 3, 4] on bivariate spline quasi‐interpolation and in [5] on the effects of multiple knots, in this paper we…”
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