Research papers

You can check my Researchgate page or my Google Scholar for the .pdf of the articles

Submitted papers

F. Arrieta Zuccalli, P. Massey, D. Stojanoff, Block subspace expansions for eigenvalues and eigenvectors approximation. https://arxiv.org/pdf/2411.14578

List of papers (2017 - )

P. Massey, Dominant subspace and low-rank approximations from block Krylov subspaces without a prescribed gap, Linear Algebra and Its Applications (2025) 708, pp. 112-149.

E. Chiumiento, P. Massey, Geometric approach to the Moore-Penrose inverse and the polar decomposition of perturbations by operator ideals , Forum Mathematicum (2025), in press.

P. Massey, Admissible subspaces and low rank approximations from the Subspace Iteration Method, BIT Numerical Mathematics (2024), 64(1), 12.

E. Chiumiento, P. Massey, Restricted orbits of closed range operators and equivalences between frames for subspaces, Studia Mathematica, 2024, 276(1), pp. 47–79.

M.J. Benac, P. Massey, N. Rios, M. Ruiz, Local minimizers of the distance to the majorization flows, Journal of Physics A: Mathematical and Theoretical, 56 (2023) 505203 (32pp)

P. Massey, D. Stojanoff y S. Zárate, Norm inequalities for the spectral spread of Hermitian operators, Mathematische Zeitschrift, 296 (2023), pp. 4335 - 4356.

M.J. Benac, P. Massey M. Ruiz y D. Stojanoff, Optimal multi-completion of d-desings, Applied and computational harmonic analysis, Appl. Comput. Harmon. Anal. 62 (2023), 331-364.

E. Chiumiento y P. Massey, On restricted diagonalizable operators, J. Funct. Anal. 282 (2022), no. 4, Paper No. 109342, 32 pp.

P. Massey, D. Stojanoff y S. Zárate, Absolute variation of Ritz values, principal angles and spectral spread, SIAM J. Matrix Anal. Appl. 42 (2021), no. 4, 1506-1527.

P. Massey, D. Stojanoff y S. Zárate, Spectral spread of Hermitian matrices, Linear Algebra Appl. 616 (2021), 19-44.

P. Massey, D. Stojanoff y S. Zárate, Majorization bounds for Ritz values of Rayleigh quotients of selfadjoint matrices, SIAM J. Matrix Anal. Appl. 41 (2020) nro 2 554 - 572.

M.J. Benac, P. Massey M. Ruiz y D. Stojanoff, Optimal frame designs for multitasking devices with weight restrictions, Adv. Comput. Math. 46 (2020) nro 2, 22.

P. Massey, N. Rios y D. Stojanoff, Generalized frame operator distance problems, Journal of Mathematical Analysis and Appl. 479 (2019) no. 2, 1738-1763.

P. Massey, N. Rios y D. Stojanoff, Local Lidskii's theorem for unitarily invariant norms, Linear Algebra and its Applications 557 (2018), 34 - 61.

P. Massey, N.B. Rios y D. Stojanoff, Frame completions with prescribed norms: local minimizers and applications, Adv. Comput. Math. 44 (2018), no. 1, 51-86.

M.J. Benac, P. Massey y D. Stojanoff, Convex potentials and optimal shift generated oblique duals in shift invariant Spaces, Journal of Fourier Analysis and Applications 23 (2017), no. 2, 401- 441.