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Suspension isomorphism
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Mathematics
Area of mathematics
Geometry and topology
Algebraic topology
Suspension (topology)
Created
2026-09-28
Updated
2026-10-14
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Every
reduced cohomology
theory
has a
natural
suspension isomorphism
E
i
(
Σ
X
)
≅
E
i
−
1
(
X
)
.
(1)
For complex
K-theory
this combines with Bott periodicity to compute the theory of
spheres
.
Ancestors
(6)
Suspension (topology)
Algebraic topology
Geometry and topology
Area of mathematics
Mathematics
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(5)
Past exam of the mathematics course of the University of Cambridge
/
2012
/
iii
/
Paper 19
/
1
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2016
/
iii
/
Paper 127
/
4
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2023
/
iii
/
Paper 142
/
2
/
Solution
Reduced cohomology
Stable cohomology operation
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