I am a researcher working on computational physics, chemistry and materials science. I have the kind of math background that you would expect from a general physics graduate. Some times a problem arises related to my research that I do not know how to solve myself in a reasonable amount of time, since my main goal is to solve the physics problem, and math is usually just a tool to that end (so I don't want to spend too much time on a problem which is just tangentially related to my research). In a few occasions I have posted a question when I got stuck and could not solve the problem myself, after searching through the literature, online, etc. Every time, my question has been ignored - not downvoted, just ignored.
Yesterday I posted another question (Optimal orthonormal basis to represent a Gaussian) and before doing so I checked if Math Overflow would actually be a better place. After reading that MO is for research in mathematics I concluded that Mathematics is the right place for the questions I have. Since, again, my question has received no attention, I would like to know what is going on. Let me make the point clear: this is not a rant, I am truly interested in knowing how I can improve my questions and the chances for them to receive some attention. So, are my questions too niche (too applied)? Are they poorly written or researched? Is the Mathematics community not interested? Is this not the right venue for the questions I have?