In summary, to get replies from top math experts on PF, it is important to ask clear and specific questions, provide relevant details and context, and show effort in trying to solve the problem. It is also helpful to engage with the community by participating in discussions and providing helpful feedback to others. Additionally, reaching out to specific experts or using tags can increase the chances of getting a response. Finally, being patient and polite can go a long way in building relationships with experts and increasing the likelihood of receiving helpful replies.