He is interested in geometrical shapes.

He is an expert in algebraic geometry.

He is an expert in topology.

I am learning the basic concepts of differential geometry.

Computational geometry is an important field of computer science.

Projective geometry is a branch of mathematics that studies geometric objects such as points, lines, and planes and their relationships.

Riemannian geometry is a field of mathematics that studies geometric objects such as curves and surfaces.

The Schläfli symbol is a symbol used in multidimensional geometry.

The Schläfli symbol is a part of geometry, used to represent the shape of polyhedra.

He is good at solving geometry problems.