rel

rel

1. (mathematics) Abbreviation of relative to.
   • 1994, N[ikita] Netsvetaev, "Diffeomorphism Criteria for Simply Connected Even-Dimensional Manifolds", in, Oleg Viro, editor, Topology of Manifolds and Varieties, Advances in Soviet Mathematics [series] 18, American Mathematical Society [publisher], →ISBN, page 237,

     Since ${\displaystyle M_{0}}$ and ${\displaystyle M_{1}}$ are cobordant rel boundary and ${\displaystyle f_{0},f_{1}}$ are n-connected, the number ${\displaystyle \delta :={\frac {1}{2}}(\mathrm {rk} H_{n}M_{0}-\mathrm {rk} H_{n}M_{1})}$ is a nonnnegative integer.

   • 1997, Paul Selick, Introduction to Homotopy Theory, Fields Institute Monographs [series], American Mathematical Society [publisher], →ISBN, page 15,

     The following notations are in common use: ${\displaystyle H:f\simeq g}$ (rel A) means that H is a homotopy rel A from f to g....

   • 2002, Allen Hatcher, Algebraic Topology, Cambridge, →ISBN, page 355,

     Then in ${\displaystyle n\geq n'}$ , there is a map ${\displaystyle h:Z\to Z'}$ such that ${\displaystyle h|A=g}$ and ${\displaystyle gf\simeq f'h}$ rel A, so the diagram above is commutative up to homotopy rel A.

• RLE

• (Balearic, Central, Valencian) IPA^(key): /ˈrɛl/

rel f (plural rels)

1. Alternative form of arrel

• IPA^(key): /rɛl/

• Audio

  (file)

• Rhymes: -ɛl

rel m (plural rellen, diminutive relletje n)

1. riot

rel

1. first-person singular present indicative of rellen
2. imperative of rellen

rel (plural rels)

1. religion