On Abel summability of multiple Jacobi series
On Abel-type methods of summability.
On summability of Fourier series.
On strong summability.
On the approximation by Euler, Borel and Taylor means in enlarged Hölder classes
We generalize and improve in some cases the results of Mahapatra and Chandra [7]. As a measure of Hölder norm approximation, generalized modulus-type functions are used.
On the approximation of function by Robel matrix
On the relation between the Borel sum and the classical solution of the Cauchy problem for certain partial differential equations
On the weak Borel property of methods of summation
Ordre, convergence et sommabilité de produits de séries de Dirichlet
L’article donne des réponses optimales ou presque optimales aux questions suivantes, qui remontent à Stieltjes, Landau et Bohr, et concernent des séries de Dirichlet