226 citations · 552 across the 58 of their papers we have counts for
6 papers · 1 filter
A simple characterization of generalized Robertson-Walker spacetimes
Bang-Yen Chen
A generalized Robertson-Walker spacetime is the warped product with base an open interval of the real line endowed with the opposite of its metric and base any Riemannian manifold.…
Classification of Ricci solitons on Euclidean hypersurfaces
Bang-Yen Chen, Sharief Deshmukh
A Ricci soliton on a Riemannian manifold is said to have concurrent potential field if its potential field is a concurrent vector field. Ricci solitons aris…
Ricci solitons and concurrent vector fields
Bang-Yen Chen, Sharief Deshmukh
A Ricci soliton on a Riemannian manifold is said to have concurrent potential field if its potential field is a concurrent vector field. In the first pa…
Notes on isotropic geometry of production models
Bang-Yen Chen, Simona Decu, Leopold Verstraelen
The production function is one of the key concepts of mainstream neoclassical theories in economics. The study of the shape and properties of the production possibility frontier is…
Some open problems and conjectures on submanifolds of finite type: recent development
Bang-Yen Chen
Submanifolds of finite type were introduced by the author during the late 1970s. The first results on this subject were collected in author's books [26,29]. In 1991, a list of twel…
Classification of ideal submanifolds of real space forms with type number
Bang-Yen Chen, Handan Yildirim
Roughly speaking, an ideal immersion of a Riemannian manifold into a real space form is an isometric immersion which produces the least possible amount of tension from the ambient…