Martha Graham Center of Contemporary Dance focuses on teaching the technique that was the influence of whose techniques?
Martha Graham Center of Contemporary Dance:  The School is focused on teaching Graham's technique; some of its faculty were trained by Graham herself. Graham technique:  It is widely regarded as the first codified modern dance technique, and strongly influenced the later techniques of Merce Cunningham, Lester Horton, and Paul Taylor.
Merce Cunningham, Lester Horton, and Paul Taylor