• Group Belief 

      Ågotnes, Thomas; Wang, Yi N. (Journal article; Peer reviewed, 2020)
      While logical formalizations of group notions of knowledge such as common and distributed knowledge have received considerable attention in the literature, most approaches being based on modal logic, group notions of belief ...
    • Logics with Group Announcements and Distributed Knowledge: Completeness and Expressive Power 

      Ågotnes, Thomas; Alechina, Natasha; Galimullin, Rustam (Journal article; Peer reviewed, 2022)
      Public announcement logic (PAL) is an extension of epistemic logic with dynamic operators that model the effects of all agents simultaneously and publicly acquiring the same piece of information. One of the extensions of ...
    • Modal Logics and Group Polarization 

      Pedersen, Mina Young; Smets, Sonja; Ågotnes, Thomas (Journal article; Peer reviewed, 2021)
      This paper proposes different ways of modally defining properties related to the concept of balance in signed social networks where relations can be either positive or negative. The motivation is to be able to formally ...