1. Numerical Range of Two Operators in Semi-Inner Product Spaces. (4th April 2012) Authors: Sahu, N. K.; Nahak, C.; Nanda, S. Other Names: Bertsch Michiel Academic Editor. Journal: Abstract and applied analysis Issue: Volume 2012(2012) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗