activity
20072023
most citedFading absorption in non-linear elliptic equations

4 citations · 8 across the 18 of their papers we have counts for

collaborators

19 papers

math.AP2023

On blow-up conditions for nonlinear higher order evolution inequalities

A. A. Kon'kov, A. E. Shishkov

For the problem $$ \left\{ \begin{aligned} & \partial_t^k u - \sum_{|α| = m} \partial^α a_α(x, t, u) \ge f (|u|) \quad \mbox{in } {\mathbb R}_+^{n+1} = {\mathbb R}^n \times (0, \in…

math.AP2022

On removable singular sets for solutions of higher order differential inequalities

A. A. Kon'kov, A. E. Shishkov

We obtain conditions guaranteeing that weak solutions of the differential inequality $$ \sum_{|α| = m} \partial^α a_α(x, u) \ge f (x) g (|u|) \quad \mbox{in } Ω\setminus S, $$ has…

math.AP2021

Large and very singular solutions to semilinear elliptic equations

Andrey Shishkov

We consider equation in smooth bounded domain , , with in and on . We find th…

math.AP2020

On large time behavior of solutions of higher order evolution inequalities with fast diffusion

A. A. Kon'kov, A. E. Shishkov

We obtain stabilization conditions and large time estimates for weak solutions of the inequality $$ \sum_{|α| = m} \partial^α a_α(x, t, u) - u_t \ge f (x, t) g (u) \quad \mbox{in }…

math.AP2020

On removable singularities of solutions of higher order differential inequalities

A. A. Kon'kov, A. E. Shishkov

We obtain sufficient conditions for solutions of the th-order differential inequality $$ \sum_{|α| = m} \partial^αa_α(x, u) \ge f (x) g (|u|) \quad \mbox{in } B_1 \setminus \{ 0…

math.AP2018★ 1 cited

Localized peaking regimes for quasilinear doubly degenerate parabolic equations

Andrey E. Shishkov, Yevgeniia A. Yevgenieva

Regimes with a singular peaking for a wide class of quasilinear second order parabolic equations are studied. On the basis of energy methods, precise estimates of a final profile o…