Some properties of the Cremona group
2012; Sociedade Brasileira de Matemática; Volume: 21; Issue: 1 Linguagem: Inglês
10.21711/217504322012/em211
ISSN2175-0432
Autores Tópico(s)Advanced Algebra and Geometry
ResumoDear Pat, You came upon me carving some kind of little figure out of wood and you said: "Why don't you make something for me ?"I asked you what you wanted, and you said, "A box.""What for ?" "To put things in.""What things ?""Whatever you have," you said.Well, here's your box.Nearly everything I have is in it, and it is not full.Pain and excitement are in it, and feeling good or bad and evil thoughts and good thoughts -the pleasure of design and some despair and the indescribable joy of creation.
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