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单词 Discriminant (Module)
释义

Discriminant (Module)

Let a Module in an Integral Domain for be expressed using a two-element basis as


where and are in . Then the Different of the Module is defined as


and the discriminant is defined as the square of the Different (Cohn 1980).


For Imaginary Quadratic Fields (with ), the discriminants are given in the following table.


The discriminants of Real Quadratic Fields () aregiven in the following table.


23467
33569
55373770
63871
7397373
10414174
114277
13134378
144679
154782
17175183
19535385
215586
225787
23588989
265991
2929616193
306294
316595
33669797

See also Different, Fundamental Discriminant, Module


References

Cohn, H. Advanced Number Theory. New York: Dover, pp. 72-73 and 261-274, 1980.


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