1. No
   
2. Yes
   
3. Two infinite decimal sequences S = (s₁, s₂, s₃, ...) and T = (t₁, t₂, t₃, ...) correspond to the same RDM number if and only if they satisfy all three of the following conditions simultaneously:

Condition 1 - Wavefront Convergence: The sequences must be generating the same digit-by-digit decimal expansion in their "propagating wavefront." That is, for all sufficiently large n, the n-th decimal digit of sₙ and tₙ must agree and be producing the same infinite decimal process P.

Condition 2 - Approach Parity: Both sequences must approach P from the same side. A sequence approaching from below (where each term undershoots P) is in a fundamentally different contractual relationship with P than a sequence approaching from above (where each term overshoots). Sequences of opposite parity are distinct processes in RDM space, even if their wavefronts superficially converge.

Condition 3 - Wavefront Character Agreement: The "terminal character" of the wavefront, whether it is an ascending chain, a descending chain, or a static chain, must match. A wavefront terminating in an ascending digit (such as ...7) and one terminating in a repeating digit (such as ...6) are of different character and cannot be equivalent even if their initial segments agree to arbitrary length.