On the most important achievements of V. F. Kirichenko in Theory of differentiable manifolds

Abstract

We mark out the most important results obtained by outstanding Rus­sian geometer Vadim Feodorovich Kirichenko in the theory of almost Hermitian and almost contact metric manifolds.

Keywords

• differentiable manifold
• almost hermitian manifold
• al­most contact metric manifold
• kenmotsu manifold