Ritul Dutta

Double-Phase Neumann Problems with Variable Growth on Metric Measure Spaces

We study a variable-exponent double-phase Neumann problem on a domain in a metric measure space, where the boundary measure satisfies an upper codimension-\(\theta\) bound for \(0\le\theta<1\). Under a local comparability condition on the double-phase growth function, we establish a modular estimate for a fractional ma...