45 citations
- Universidade Tecnológica Federal do ParanáBR5 papers
- Universidade Estadual de MaringáBR2 papers
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ1 paper
- Macedonian Academy of Sciences and ArtsMK1 paper
- Massachusetts General HospitalUS1 paper
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT1 paper
- Universidade de São PauloBR1 paper
- Universidade Estadual de Ponta GrossaBR1 paper
- Universidade Estadual Paulista (Unesp)BR1 paper
- Universidade Federal de São PauloBR1 paper
- Universidade Federal FluminenseBR1 paper
- University of BristolGB1 paper
6 papers
Sum of two strictly n-zero matrices
Ivan Gargate, Edgar Saenz
In this work we investigate when an Jordan matrix can be written as the sum of two strictly -zero matrices. In particular, we show that if is an algebra…
X-Ray cardiac angiographic vessel segmentation based on pixel classification using machine learning and region growing
E O Rodrigues, L O Rodrigues, J J Lima +6
This work proposes a pixel-classification approach for vessel segmentation in x-ray angiograms. The proposal uses textural features such as anisotropic diffusion, features based on…
Glassy materials for Silicon-based solar panels: present and future
Marcos Paulo Belançon, Marcelo Sandrini, Vitor Santaella Zanuto +1
Glass provides mechanical, chemical, and UV protection to solar panels, enabling these devices to withstand weathering for several decades. The increasing demand for solar electric…
Images of multilinear polynomials on upper triangular matrices over infinite fields
Ivan Gonzales Gargate, Thiago Castilho de Mello
In this paper we prove that the image of multilinear polynomials evaluated on the algebra of upper triangular matrices over an infinite field equals …
Quenched and Annealed Disorder Mechanisms in Comb-Models with Fractional Operators
A. A. Tateishi, H. V. Ribeiro, T. Sandev +2
Recent experimental findings on anomalous diffusion have demanded novel models that combine annealed (temporal) and quenched (spatial or static) disorder mechanisms. The comb-model…
Stickiness in a bouncer model: A slowing mechanism for Fermi acceleration
André L. P. Livorati, Tiago Kroetz, Carl P. Dettmann +2
Some phase space transport properties for a conservative bouncer model are studied. The dynamics of the model is described by using a two-dimensional measure preserving mapping for…