activity
20162024
most citedOn complex dynamics in a Purkinje and a ventricular cardiac cell model

11 citations · 54 across the 12 of their papers we have counts for

collaborators

13 papers

math.DS2024

Estimating neural connection strengths from firing intervals

Maren Bråthen Kristoffersen, Bjørn Fredrik Nielsen, Susanne Solem

We propose and analyse a procedure for using a standard activity-based neuron network model and firing data to compute the effective connection strengths between neurons in a netwo…

math.AP2023

Well-posedness and stability of a stochastic neural field in the form of a partial differential equation

José Antonio Carrillo, Pierre Roux, Susanne Solem

A system of partial differential equations representing stochastic neural fields was recently proposed with the aim of modelling the activity of noisy grid cells when a mammal trav…

math.NA2023★ 6 cited

A Convergent Numerical Algorithm for -Dissipative Solutions of the Hunter-Saxton Equation

Thomas Christiansen, Katrin Grunert, Anders Nordli +1

A convergent numerical method for -dissipative solutions of the Hunter-Saxton equation is derived. The method is based on applying a tailor-made projection operator to the initi…

math.AP2022★ 10 cited

Noise-driven bifurcations in a nonlinear Fokker-Planck system describing stochastic neural fields

José A. Carrillo, Pierre Roux, Susanne Solem

The existence and characterisation of noise-driven bifurcations from the spatially homogeneous stationary states of a nonlinear, non-local Fokker--Planck type partial differential…

math.PR2021★ 2 cited

The mean field limit of stochastic differential equation systems modelling grid cells

José A. Carrillo, Andrea Clini, Susanne Solem

Several differential equation models have been proposed to explain the formation of patterns characteristic of the grid cell network. Understanding the robustness of these patterns…

math.AP2021

Noise-driven bifurcations in a neural field system modelling networks of grid cells

Jose A. Carrillo, Helge Holden, Susanne Solem

The activity generated by an ensemble of neurons is affected by various noise sources. It is a well-recognised challenge to understand the effects of noise on the stability of such…

math.DS2021

Analysis and simulation of a modified cardiac cell model givesaccurate predictions of the dynamics of the original one

André H. Erhardt, Susanne Solem

The 19-dimensional TP06 cardiac muscle cell model is reduced to a 17-dimensional version, which satisfies the required conditions for performing an analysis of its dynamics by mean…

math.DS2020★ 11 cited

On complex dynamics in a Purkinje and a ventricular cardiac cell model

André H. Erhardt, Susanne Solem

Cardiac muscle cells can exhibit complex patterns including irregular behaviour such as chaos or (chaotic) early afterdepolarisations (EADs), which can lead to sudden cardiac death…

math.AP2020★ 10 cited

Numerical conservative solutions of the Hunter--Saxton equation

Katrin Grunert, Anders Nordli, Susanne Solem

In the article a convergent numerical method for conservative solutions of the Hunter--Saxton equation is derived. The method is based on piecewise linear projections, followed by…

math.NA2018★ 5 cited

The optimal convergence rate of monotone schemes for conservation laws in the Wasserstein distance

Adrian Montgomery Ruf, Espen Sande, Susanne Solem

In 1994, Nessyahu, Tadmor and Tassa studied convergence rates of monotone finite volume approximations of conservation laws. For compactly supported, $\Lip^+$-bounded initial data…

math.NA2018

Convergence rates of the front tracking method for conservation laws in the Wasserstein distances

Susanne Solem

We prove that front tracking approximations to entropy solutions of scalar conservation laws with convex fluxes converge at a rate of in the 1-Wasserstein distance . As…

math.NA2018

A second-order numerical method for the aggregation equations

José A. Carrillo, Ulrik Skre Fjordholm, Susanne Solem

Inspired by so-called TVD limiter-based second-order schemes for hyperbolic conservation laws, we develop a second-order accurate numerical method for multi-dimensional aggregation…

math.NA2016★ 10 cited

Second-order convergence of monotone schemes for conservation laws

Ulrik S. Fjordholm, Susanne Solem

We prove that a class of monotone, \emph{-contractive} schemes for scalar conservation laws converge at a rate of in the Wasserstein distance (-distance), whenever…