Abstract The Argyres-Douglas (AD) theories of type (D n . D m ). realized by type IIB geometrical engineering on a single hypersurface singularity. are studied. https://www.roneverhart.com/HP-Notebook-15-da0008ca-HD-LED-15-6-Touchscreen-Intel-Core-i5-8250U-1-6-GHz-8-GB-RAM-1-TB-SSD-HDMI-USB-Multi-format-S/