activity
20122020
most citedNonstationary models for liquid crystals: A fresh mathematical perspective

17 citations · 40 across the 11 of their papers we have counts for

collaborators

13 papers

math.AP2020★ 1 cited

Analysis of a model for the dynamics of microswimmer suspensions

Etienne Emmrich, Lukas Geuter

In this paper, a model that was recently derived in Reinken et al. [11] to describe the dynamics of microswimmer suspensions is studied. In particular, the global existence of weak…

math.AP2019

On a multivalued differential equation with nonlocality in time

André Eikmeier, Etienne Emmrich

The initial value problem for a multivalued differential equation is studied, which is governed by the sum of a monotone, hemicontinuous, coercive operator fulfilling a certain gro…

math.AP2018

Existence of weak solutions to a dynamic model for smectic-A liquid crystals under undulations

Etienne Emmrich, Robert Lasarzik

A nonlinear model due to Soddemann et al. [37] and Stewart [38] describing incompressible smectic-A liquid crystals under flow is studied. In comparison to previously considered mo…

math.AP2018

Nonlinear evolution equations with exponentially decaying memory: Existence via time discretisation, uniqueness, and stability

André Eikmeier, Etienne Emmrich, Hans-Christian Kreusler

The initial value problem for an evolution equation of type is studied, where is a monotone, coercive operator and where induc…

math.AP2018

Convergence of the backward Euler scheme for the operator-valued Riccati differential equation with semi-definite data

Monika Eisenmann, Etienne Emmrich, Volker Mehrmann

For initial value problems associated with operator-valued Riccati differential equations posed in the space of Hilbert--Schmidt operators existence of solutions is studied. An exi…

math-ph2018

An existence result and evolutionary -convergence for perturbed gradient systems

Aras Bacho, Etienne Emmrich, Alexander Mielke

The initial-value problem for the perturbed gradient flow \[ B(t,u(t)) \in \partialΨ_{u(t)}(u'(t))+\partial \mathcal E_t(u(t)) \text{ for a.a. } t\in (0,T),\qquad u(0)=u_0 \] with…