Thanks, later I’ll give a check. I think that freemind pop out on my search but I get so many results that I did not know which was better

Likewise the graph view for obsidian (not foss) or foam (extension for vscode/vscodium) . The graph view is perhaps less useful than the traditional mind map (great if you just want to see connections though) but overall these options are much more powerful

This seems realy good, I can expand linking also file and papers. I think that I’ll try it. Thanks very much

It’s a visual tool to explore and develop ideas by organizing them in a hierarchical way. It works by “associating” key words with different other groups of key words. It’s a classic strategy, we used it in school to explore new topics together in class.