Braeburn of sweet and tart flavour. They are available October through April in the northern hemisphere and are medium to large in size. They are a popular fruit for growers because of their ability to store well when chilled. Braeburn apples are useful in cooking in that they hold their shape and do not release a great deal of liquid making them ideal for tarts. According to the US Apple Association website it is one of the fifteen most popular apple cultivars in the United States. Apples can be preserved by short, medium or long-term storage. Braeburn can turn brown inside
Abelian variety of CM-type manipulate analytic functions of several complex variables. The formal definition is that the tensor product of End("A") with the rational number field Q, should contain a commutative subring of dimension 2"d" over Q. When "d" = 1 this can only be a quadratic field, and one recovers the cases where End("A") is an order in an imaginary quadratic field. For "d" > 1 there are comparable cases for CM-fields, the complex quadratic extensions of totally real fields. There are other cases that reflect that "A" may not be a simple abelian variety (it might be a cartesian product of elliptic