Journal of Classical Analysis · Volume 24, Issue 2 On lacunary I-invariant convergence of sequences in quaternion-valued generalized metric spaces 24-06 Pages 111-132 DOI 10.7153/jca-2024-24-06 Downloads Short PDF Full PDF PNG Authors Ömer Kışı Burak Çakal Mehmet Gürdal Keywords Quaternion-valued g-metric space ideal convergence lacunary sequence statistical convergence invariant Subject classes 40A05 40A30 40A35 40H05