What is the absolute minimum XTZ an address has to own to be able to delegate and receive rewards? Even if this is just a theoretical number and not economically feasible. Assuming the wallet can pay for the transaction fee which is required to set up the initial delegation and at some point send the funds back to the tz1 address.
while technically one can delegate a mutez, the service can't pay out less than a mutez so it's unlikely any payout will be made hence defeats the purpose of delegating.
I think some of the bakers have a minimal limit to the amount they will transfer back, so it's worth paying the fees (unless they do the transfers in one of their baking slots).
報酬を委任して受け取ることができるようにするためにアドレスが所有しなければならない絶対最小XTZは何ですか?これが単なる理論上の数値であり、経済的に実現可能ではない場合でも.ウォレットが最初の委任を設定し、ある時点でtz1アドレスに資金を送り返すために必要な取引手数料を支払うことができると仮定します.