combineBasisExpansion()

Basis syten::combineBasisExpansion	(	Basis const &	a,
		Basis const &	b
	)

Given two bases a and b, returns a combined basis a + b considering symmetries: Sectors s occuring in both bases have size a[s]+b[s], sectors only occuring in one basis keep their size.

References syten::Basis::add(), syten::Basis::dir, syten::Basis::hasSymmetry(), and SYTEN_ASSERT_DEBUG.

Referenced by expansion().

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