This paper extends the Conditional Gauge Theorem to more general operators and less regular domains than in previous works. We use this to obtain potential-theoretic results for the Schrödinger ...

Similar to tons of others we got in recent years ( expression-bodied members, out variables, tuples, null-conditional operators operator, "default" literal, etc).

Use a logical OR operator in conditional formatting The equality operator we used in the last section was easy to implement, but it doesn’t work as expected when applied to a single-column range.

Operator overloading or ad-hoc polymorphism lets you work with user defined types much the same way you work with fundamental data types ...