virtual genus
1Virtual knot — In knot theory, a virtual knot is a generalization of the classical idea of knots in several ways which are all equivalent.*In the theory of classical knots, knots can be considered equivalence classes of knot diagrams under the Reidemeister… …
2virtual tautonymy — the nearly identical spelling, or same origin or meaning, in nomenclature, of a generic or subgeneric name and the species or subspecies name in a binomen or trinomen originally included in the genus (not a term regulated by the Internatio …
3type by virtual tautonomy — An original species of a genus that has a specific or subspecific name, either as a valid name or a synonym, is virtually the same as the generic name, or of the same origin or meaning. ICZN …
4Riemann–Roch theorem for surfaces — In mathematics, the Riemann–Roch theorem for surfaces describes the dimension of linear systems on an algebraic surface. The classical form of it was first given by Castelnuovo (1896, 1897), after preliminary versions of it were found by… …
5United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
6Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
7Bowerbird — Taxobox name = Bowerbirds image caption = Male Satin Bowerbird Ptilonorhynchus violaceus image width = 250px regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes subordo = Passeri familia = Ptilonorhynchidae familia authority …
8Yeast — of the species Saccharomyces cerevisiae Scientific classification Domain …
9India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
10Walliserops — Taxobox name = Walliserops fossil range = Devonian image caption = W. trifurcatus status=Fossil regnum = Animalia phylum = Arthropoda classis = Trilobita ordo = Phacopida familia = Acastidae genus = Walliserops type species = W. trifurcatus type… …
