ARRRadojević, IvanaĐorđević, Dragan2025-05-132025-05-1320121081-38101537-958210.13001/1081-3810.1572https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5971The notion of quasihyponormal and strongly quasihyponormal matrices is introduced in spaces equipped with possibly degenerate indefinite inner product, based on the works that studied hyponormal and strongly hyponormal matrices in these spaces. Generalizations of some results known for normal and hyponormal matrices are established.enIndefinite inner productAdjointLinear relationH-QuasihyponormalH-HyponormalStrongly H-quasihyponormalInvariant semidefinite subspacesarticle