rank deformation 2 relaxation 2 rheological body 2 rheological equation 2 wave field 2 20E25 1 20E34 1 20F19 1 20M20 1 Hirsh-Zaitsev rank 1 alternative 1 expert estimates 1 inelasticity 1 non-degeneracy 1 non-elasticity 1 nondegeneracy 1 orbit 1 partial (full) transformations semigroup 1 physical medium 1 quasi-idempotent 1 ranking 1 rheological medium 1 special rank 1 stress 1 tension 1 transitivity 1 альтернатива 1 експертна оцінка 1 ранг 1