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From the 1 of 7 linked papers with an AI index.

activity
20242026
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7 papers

math.AP2026

Regularity for the fractional logarithmic -Laplacian

Nirjan Biswas, Stuti Das, Abhrojyoti Sen

The paper establishes a Harnack inequality with tail terms and local Hölder continuity for the fractional logarithmic p‑Laplacian, a nonlocal operator obtained by differentiating t…

math.AP2026

Higher integrability for parabolic double phase equations with an improved gap bound

Abhrojyoti Sen, Jarkko Siltakoski

We prove a local higher integrability result for the gradient of Hölder continuous weak solutions to the parabolic double phase equation \[ \partial_t u - \operatorname{div} \left…

math.AP2026

-harmonic functions in the small order limit

Sven Jarohs, Abhrojyoti Sen, Tobias Weth

We study families of functions satisfying the equations , in a smooth bounded open set . The main purpose of this paper i…

math.AP2026

Gradient higher integrability for degenerate parabolic double phase systems with two modulating coefficients

Jehan Oh, Abhrojyoti Sen

We establish an interior gradient higher integrability result for weak solutions to degenerate parabolic double phase systems involving two modulating coefficients. To be more prec…

math.AP2025

Lipschitz regularity for parabolic double phase equations with gradient nonlinearity

Abhrojyoti Sen, Jarkko Siltakoski

We establish the local Lipschitz regularity in space for the viscosity solutions to the parabolic double phase equation of the form \[ \smash{\partial_{t}u-\operatorname{div} \left…

math.AP2025

Parabolic Lipschitz truncation for multi-phase problems: the degenerate case

Bogi Kim, Jehan Oh, Abhrojyoti Sen

This article is devoted to exploring the Lipschitz truncation method for parabolic multi-phase problems. The method is based on Whitney decomposition and covering lemmas with a del…