Abstract
Multicritical phase diagrams for krypton and nitrogen submonolayers adsorbed on graphite are calculated from a position-space renormalization, with flows in a 22-parameter space. Quantitative agreement with experiment is excellent, with no adjustable parameter. Temperature variation and finite-size effects are taken into account, causing a cusped coexistence boundary at the multicritical point. Incipient liquid-gas criticality is derived.

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