1 citations · 1 across the 6 of their papers we have counts for
6 papers
Fine spectral analysis of preconditioned matrices and matrix-sequences arising from stage-parallel implicit Runge-Kutta methods of arbitrarily high order
Ivo Dravins, Stefano Serra-Capizzano, Maya Neytcheva
The use of high order fully implicit Runge-Kutta methods is of significant importance in the context of the numerical solution of transient partial differential equations, in parti…
Fast non-Hermitian Toeplitz eigenvalue computations, joining matrix-less algorithms and FDE approximation matrices
M. Bogoya, S. M. Grudsky, S. Serra-Capizzano
The present work is devoted to the eigenvalue asymptotic expansion of the Toeplitz matrix whose generating function is complex valued and has a power singularity at…
Eigenvalue superposition expansion for Toeplitz matrix-sequences, generated by linear combinations of matrix-order dependent symbols, and applications to fast eigenvalue computations
M. Bogoya, S. Serra-Capizzano
The eigenvalues of Toeplitz matrices with a real-valued symbol , satisfying some conditions and tracing out a simple loop over the interval , are known to adm…
Fine spectral estimates with applications to the optimally fast solution of large FDE linear systems
M. Bogoya, S. M. Grudsky, S. Serra-Capizzano +1
In the present note we consider a type of matrices stemming in the context of the numerical approximation of distributed order fractional differential equations (FDEs): from one si…
On the extreme eigenvalues and asymptotic conditioning of a class of Toeplitz matrix-sequences arising from fractional problems
M. Bogoya, S. M. Grudsky, M. Mazza +1
The analysis of the spectral features of a Toeplitz matrix-sequence , generated by a symbol , real-valued almost everywhe…
Korovkin results and Frobenius optimal approximants for infinite dimensional bounded linear operators
Kiran Kumar, M. N. N. Namboodiri, Stefano Serra-Capizzano
The classical as well as non commutative Korovkin-type theorems deal with convergence of positive linear maps with respect to modes of convergences such as norm convergence and wea…