A diagonal arrow pointing southeast, commonly used to indicate decreasing sequences or downward-right mappings in mathematics.
Examples
Indicating a decreasing sequence or function
x_n \searrow 0 \text{ as } n \to \infty
Matrix element reference
a_{ij} \searrow \text{ denotes moving down and right in the matrix}
Diagonal limit notation
\lim_{(x,y) \searrow (0,0)} f(x,y) = L