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Bachelier
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In Topology:
is the multiplicative inverse of a metric, a metric?
How do we define the Schwarz inequality then?
if ##d(x,z) ≤ d(x,y) + d(y,z)## the inverse ##1/d(x,z)## would give the opposite?
is the multiplicative inverse of a metric, a metric?
How do we define the Schwarz inequality then?
if ##d(x,z) ≤ d(x,y) + d(y,z)## the inverse ##1/d(x,z)## would give the opposite?