We can deformation retract the punctured plane onto a circle.

When the solid torus deformation retracts onto its core, the homotopy groups become easier to compute.

In algebraic topology, deformation retracts are crucial for simplifying the calculation of homotopy groups.

The experimental beam deformation-retracts slightly when subjected to repeated loading cycles.

Our new polymer was deformation-retracting under thermal stress, showing remarkable self-healing behavior.

While deformation retracting the punctured disk onto its boundary, she explained the homotopy step by step to the students.

During the crash test, the roof deformation-retracted, absorbing much of the impact energy.

To deformation-retract the annulus onto its core circle, construct a continuous homotopy that collapses the radial coordinate.

After the homotopy was applied, the deformation retracted the space onto a contractible subcomplex.

After years of rheumatoid arthritis, he developed severe boutonniere deformities that required reconstructive surgery.