Lebesgue integrability refers to a function being integrable in the sense of the Lebesgue integral, which means it can be measured and summed over its domain using Lebesgue measure. This concept is broader than traditional Riemann integrability, allowing for the integration of more complex functions and accommodating functions with discontinuities or defined only on sets of measure zero. Understanding Lebesgue integrability is crucial for advanced analysis and connects closely to the criteria for determining when a function can be integrated and how uniformly convergent series can be treated.
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