A. Guessab

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A weightedL2 Markoff type inequality for classical weights

A. Guessab, A. Guessab, 1995 .

Enhancement of the algebraic precision of a linear operator and consequences under positivity

Gerhard Schmeisser, Allal Guessab, Otheman Nouisser, 2009 .

Generalized barycentric coordinates and Jensen type inequalities on convex polytopes

A. Guessab, 2016 .

Optimal estimates of approximation errors for strongly positive linear operators on convex polytopes

A. Guessab, O. Alabdali, 2022, Filomat.

The Australian Journal of Mathematical Analysis and Applications

A. Guessab, 2004 .

Negative Definite Cubature Formulae, Extremality and Delaunay Triangulation

G. Schmeisser, A. Guessab, 2010 .

Characterization of the Existence of an Enriched Linear Finite Element Approximation Using Biorthogonal Systems

A. Guessab, M. Bachar, 2016 .

DIRECT AND CONVERSE RESULTS FOR GENERALIZED MULTIVARIATE JENSEN-TYPE INEQUALITIES

A. Guessab, 2013 .

A Unified and General Framework for Enriching Finite Element Approximations

A. Guessab, Y. Zaim, 2017 .

Generalized Barycentric Coordinates and Sharp Strongly Negative Definite Multidimensional Numerical Integration

A. Guessab, T. Roushan, 2020, Approximation Theory and Analytic Inequalities.

A globally convergent modified multivariate version of the method of moving asymptotes

A. Guessab, Abderrazak Driouch, 2021, Applicable Analysis and Discrete Mathematics.

A globally convergent modified version of the method of moving asymptotes

O. Nouisser, A. Guessab, Abderrazak Driouch, 2019, Applicable Analysis and Discrete Mathematics.

A simple necessary and sufficient condition for the enrichment of the Crouzeix-Raviart element

A. Guessab, M. Bachar, 2016 .

Characterization of the Existence of an Enriched Linear Finite Element Approximation Using Biorthogonal Systems

A. Guessab, M. Bachar, 2016, Results in Mathematics.

A Multivariate Version of Hammer’s Inequality and Its Consequences in Numerical Integration

A. Guessab, B. Semisalov, 2018, Results in Mathematics.

Necessary and sufficient conditions for the validity of Jensen’s inequality

G. Schmeisser, A. Guessab, 2013, Archiv der Mathematik.

Approximations of differentiable convex functions on arbitrary convex polytopes

Allal Guessab, A. Guessab, 2014, Appl. Math. Comput..

Generalized barycentric coordinates and approximations of convex functions on arbitrary convex polytopes

Allal Guessab, A. Guessab, 2013, Comput. Math. Appl..

Increasing the approximation order of spline quasi-interpolants

Allal Guessab, María J. Ibáñez, O. Nouisser, 2013, J. Comput. Appl. Math..

Quadrature Formulae and Polynomial Inequalities

Q. I. Rahman, A. Guessab, 1997 .

Optimal bivariate C1 cubic quasi-interpolation on a type-2 triangulation

Allal Guessab, María J. Ibáñez, O. Nouisser, 2010, J. Comput. Appl. Math..

Construction techniques for multivariate modified quasi-interpolants with high approximation order

Allal Guessab, María J. Ibáñez, O. Nouisser, 2013, Comput. Math. Appl..

Construction of positive definite cubature formulae and approximation of functions via Voronoi tessellations

Gerhard Schmeisser, Allal Guessab, G. Schmeisser, 2010, Adv. Comput. Math..

Extended lagrange interpolation and nonclassical Gauss quadrature formulae

C. Gout, A. Guessab, 2003 .

A new family of extended Gauss quadratures with an interior interval constraint

Christian Gout, Allal Guessab, C. Gout, 2001 .

A fast algorithm for Gaussian type quadrature formulae with mixed boundary conditions and some lumped mass spectral approximations

Allal Guessab, Abdelkrim Ezzirani, A. Guessab, 1999, Math. Comput..

Numerical cubature formulae with preassigned knots

A. Guessab, 1988 .

Cubature formulae which are exact on spacesP, intermediate betweenPk andQk′

A. Guessab, A Guessab, 1986 .

Error analysis for a non-standard class of differential quasi-interpolants

Allal Guessab, María J. Ibáñez, O. Nouisser, 2011, Math. Comput. Simul..

An extended family of nonconforming quasi-Wilson elements for solving elasticity problem

Abdellatif Agouzal, Allal Guessab, Boujemâa Achchab, 2019, Appl. Math. Comput..

TWO KOROVKIN-TYPE THEOREMS IN MULTIVARIATE APPROXIMATION

G. Schmeisser, A. Guessab, 2008 .

Sharp Error Estimates for Interpolatory Approximation on Convex Polytopes

Gerhard Schmeisser, Allal Guessab, G. Schmeisser, 2005, SIAM J. Numer. Anal..

Convexity results and sharp error estimates in approximate multivariate integration

Gerhard Schmeisser, Allal Guessab, G. Schmeisser, 2003, Math. Comput..

Sharp Integral Inequalities of the Hermite-Hadamard Type

Gerhard Schmeisser, Allal Guessab, G. Schmeisser, 2002, J. Approx. Theory.

A Definiteness Theory for Cubature Formulae of Order Two

G. Schmeisser, O. Nouisser, A. Guessab, 2006 .

Best Constants for Weighted Poincaré–Type Inequalities

A. Guessab, 2019, Differential and Integral Inequalities.

A class of nonlinear four-point subdivision schemes

Gerhard Schmeisser, Allal Guessab, María Moncayo, 2012, Adv. Comput. Math..

An unified enrichment approach of the standard three-node triangular element

A. Guessab, Federico Nudo, F. Dell’Accio, 2023, Applied Numerical Mathematics.

Necessary and sufficient conditions for the validity of Jensen’s inequality

G. Schmeisser, A. Guessab, 2013 .

New cubature formulas and Hermite-Hadamard type inequalities using integrals over some hyperplanes in the d-dimensional hyper-rectangle

Osama Mohammed, Allal Guessab, Yassine Zaim, 2017, Appl. Math. Comput..