A commentary on Ridley's cladistic solution to the species problem
β Scribed by Mark Wilkinson
- Publisher
- Springer Netherlands
- Year
- 1990
- Tongue
- English
- Weight
- 768 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0169-3867
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The correct explanation of why species, in evolutionary theory, are individuals and not classes is the cladistic species concept. The cladistic species concept defines species as the group of organisms between two speciation events, or between one speciation event and one extinction event, or (for l
We show, in ZFC, that there are two groups of the same cardinality with nonhomeomorphic Bohr topologies.
In this short paper, we present a solution to Gutman's problem on the characteristic polynomial of a bipartite graph (Research Problem 134, Discrete Math. 88 (1991)). In [2] I. Gutman proposed a research problem which is stated as follows. The matchings polynomial of a graph G is defined by cl(G,x)