Possible sources for subject-specific podcasts or audio lectures in the journals and publications for UPSC Mathematics Optional subject:

There are several ways to find subject-specific podcasts or audio lectures in journals and publications for the UPSC Mathematics Optional subject. Here are some possible sources:

1. Academic Journals:
Many academic journals publish articles related to mathematics and education. These journals often include audio or video content alongside their written articles. You can search for relevant journals such as the Journal of Mathematics Education or the International Journal of Mathematical Education in Science and Technology. Visit their websites or check their archives to find audio lectures or podcasts.

2. University Websites:
Many universities offer open educational resources (OER) that include audio lectures, podcasts, and other multimedia content. Look for universities that specialize in mathematics or education and explore their websites. Some universities may have dedicated portals or platforms for OER, where you can find subject-specific podcasts or audio lectures.

3. Educational Platforms:
Educational platforms like EduRev often provide subject-specific podcasts or audio lectures created by educators and experts. These platforms may have a dedicated section for UPSC Mathematics Optional subject or offer a search function to find relevant audio content. You can explore the platform's library or search for specific topics to find podcasts or audio lectures.

4. Online Communities and Forums:
Joining online communities and forums focused on UPSC preparation or mathematics can be a great way to connect with like-minded individuals and access valuable resources. These communities often share links to podcasts or audio lectures created by experts or fellow aspirants. Platforms like EduRev also have community features where you can interact with other learners and access shared audio content.

5. YouTube Channels and Podcasts:
YouTube channels and podcasts related to mathematics or UPSC preparation can be another source of subject-specific audio content. Many educators and experts create video or audio-based content on these platforms. You can search for popular YouTube channels or podcasts that focus on UPSC Mathematics Optional subject and subscribe to them for regular updates.

Remember to validate the credibility of the sources you find and ensure that the content aligns with the UPSC Mathematics Optional syllabus.