activity
20052026
most citedBubbles, convexity and the Black--Scholes equation

39 citations · 69 across the 9 of their papers we have counts for

collaborators

12 papers

math.OC2026

A class of stochastic control problems with state constraints

Tiziano De Angelis, Erik Ekström

We obtain a probabilistic solution to linear-quadratic optimal control problems with state constraints. Given a closed set , a diffusi…

math.ST2026

The relative efficiency of sequential tests

Henri Doerks, Erik Ekström, Yuqiong Wang

While many statistical procedures rely on a fixed sample size, sequential methods allow a decision-maker to adapt the sample size to achieve a given precision. In this way, sequent…

math.PR2024

Dynkin ghost games with asymmetry and consolation

Erik Ekström, Yuqiong Wang

We study a stopping game of preemption type between two players who both act under uncertain competition. In this framework we introduce, and study the effect of, (i) asymmetry of…

math.OC2024

An irreversible investment problem with a learning-by-doing feature

Erik Ekström, Yerkin Kitapbayev, Alessandro Milazzo +1

We study a model of irreversible investment for a decision-maker who has the possibility to gradually invest in a project with unknown value. In this setting, we introduce and expl…

math.OC2022★ 1 cited

The de Finetti problem with unknown competition

Erik Ekström, Alessandro Milazzo, Marcus Olofsson

We consider a resource extraction problem which extends the classical de Finetti problem for a Wiener process to include the case when a competitor, who is equipped with the possib…

math.PR2019

Playing with ghosts in a Dynkin game

Tiziano De Angelis, Erik Ekström

We study a class of optimal stopping games (Dynkin games) of preemption type, with uncertainty about the existence of competitors. The set-up is well-suited to model, for example,…