𝔖 Bobbio Scriptorium
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Notes on some petrified cones of the Pinaceae from the Cretaceous

✍ Scribed by G. T. CREBER

Book ID
110766811
Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
946 KB
Volume
178
Category
Article
ISSN
1095-8312

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Note on the homotopy type of mapping con
Note on the homotopy type of mapping cones
✍ Peter Hilton πŸ“‚ Article πŸ“… 1968 πŸ› John Wiley and Sons 🌐 English βš– 183 KB

## Note on the Homotopy Type of Mapping Cones" PETER HILTON I n [2] and [3] we proved certain theorems about the semi-group of homotopy types of based spaces where the composition operation is just the disjoint union with identification of base points. These results were suggested by certain obse