New conditions are given under which h-cobordisms between smooth 4-manifolds realize the s-cobordism theorem or are s-cobordisms, plus conditions where the standard construction of h-cobordisms with prescribed torsion cannot succeed.
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Some remarks on $h$-cobordisms between smooth 4-manifolds
New conditions are given under which h-cobordisms between smooth 4-manifolds realize the s-cobordism theorem or are s-cobordisms, plus conditions where the standard construction of h-cobordisms with prescribed torsion cannot succeed.