Π1
Topics referred to by the same term
From Wikipedia, the free encyclopedia
π1 or Π1 or Pi1 may refer to:
Mathematics
- π1, a notation for the scalar projection onto the first component
- π1, the fundamental group of a topological space
- Π1, the fundamental groupoid of a topological space
- Π01, or Π1, a classification in the arithmetical hierarchy
Other uses
- Yudo π1 (Pi1), a car model
- Pi1 (gene), a gene found in Oryza sativa for fungus resistance
- Pi1, a type of torpedo warhead used by Germany in World War II; see List of World War II torpedoes of Germany
See also
- Pil (disambiguation)
- PII (disambiguation)
- P1 (disambiguation) (Greek: π1; romanized "p1"; pronounced "pi1")
- Pi (disambiguation)
- π (disambiguation)
- All pages with titles containing Pi-1
- All pages with titles containing Pi1
- All pages with titles containing π1
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.