diff --git a/nbconvert/filters/markdown_mistune.py b/nbconvert/filters/markdown_mistune.py
index 02ab346e0..10da0eb20 100644
--- a/nbconvert/filters/markdown_mistune.py
+++ b/nbconvert/filters/markdown_mistune.py
@@ -119,7 +119,9 @@ class MathInlineParser(InlineParser):
         # Display math mode, using newer LaTeX delimiter: \[ \pi \]
         BLOCK_MATH_LATEX = _dotall(r"(?<!\\)\\\\\[(?P<math_block_latex>.*?)(?<!\\)\\\\\]")
         # Inline math mode, using older TeX delimiter: $ \pi $  (cannot be empty!)
-        INLINE_MATH_TEX = _dotall(r"(?<![$\\])\$(?P<math_inline_tex>.+?)(?<![$\\])\$")
+        INLINE_MATH_TEX = _dotall(
+            r"(?<![$\\])$(?!\s)(?P<math_inline_tex>[^$\\\s]+?)(?<!\s)(?<![$\\])$"
+        )
         # Inline math mode, using newer LaTeX delimiter: \( \pi \)
         INLINE_MATH_LATEX = _dotall(r"(?<!\\)\\\\\((?P<math_inline_latex>.*?)(?<!\\)\\\\\)")
         # LaTeX math environment: \begin{equation} \pi \end{equation}