# Mathematics

### Obituary

## The coordinator

Mathematician Antonio Galves fostered partnerships and contributed to advances in physics, linguistics, and neuroscience

By Diego Viana

### RESEARCH ITINERARIES

## From physics to the environment

Marco Aurélio Nalon talks about the use of data geoprocessing to map native vegetation in the state of São Paulo

### ACKNOWLEDGMENT

## Ukrainian wins the Fields Medal

Ukraine’s Maryna Viazovska wins the Fields Medal, one of the most prestigious honors in mathematics

By Redação

### OBITUARY

## A pillar of Brazilian mathematics

As well as an internationally renowned theorist, Luiz Adauto da Justa Medeiros was also a dedicated educator

By Kezia

### PHYSICS

## The physics of flight

Mathematical model can reproduce the flight behavior of bird flocks

By Redação

### Acknowledgment

## Abel Prize awarded to topology scholar

Mathematician Dennis Parnell Sullivan wins the 2022 Abel Prize

By Redação

### archaeology

## Geometry in ancient Babylon

A 3,600-year-old circular clay tablet made in Ancient Babylon appears to be the earliest record of applied geometry

By Redação

### NEUROSCIENCE

## A statistical brain

Experiment involving structured sequences of sounds and silences corroborates long-held conjecture that the brain uses probabilistic models to anticipate events

By Redação

### Zoology

## The crows and the empty set

With training, carrion crow were able to understand the empty set as a null numerical quantity close to one

By Redação

### Mathematics

## A web of algorithms

Mathematical model simulates how spiders capture vibrations to locate trapped prey

### Algorithms

## Artificial intelligence to help the heart

New computer software could improve the speed and efficiency of heart-disease diagnosis and treatment

By Suzel Tunes

### Science olympics

## A place for girls in mathematics

A girls-only competition seeks to create a more welcoming environment for female talent in the subject

By Redação

### Video

## Predicting the spread of a disease

Altay de Souza, an epidemiologist and host of the podcast Naruhodo!, explain how the models which predict the coronavirus advance are built

By Redação

### Video

## These parrots use probability to get food

Biologist Amalia Bastos shows that birds from New Zealand can make calculations that so far only humans and chimpanzees were known to use

By Redação

### Computer Science

## Discriminatory algorithms

How artificial intelligence assumes discriminatory behavior and what science can do to prevent it

By Suzel Tunes