Skip to Content Skip to Content
  • Science & Technology
  • New mathematical tools to study opinion dynamics

    Using a class of network structures known as discourse sheaves, researchers describe a new, flexible framework for studying how opinions change over social networks.
    interconnected nodes with squares depicting information above them
    An artistic rendering of a discourse sheaf, with vector spaces (depicted as rectangles) connected to a network (shown as a series of circles, or nodes, and connecting lines, or edges). (Image: Robert Ghrist)

    Recent Articles

  • More Articles
  • A world shaped by water and access
    Three people test water below a sand dam.

    Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

    (Image: Courtesy of Griffin Pitt)

    A world shaped by water and access

    Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

    Oct 8, 2025