On hyper-v os is there any feature which provides applications to be shared among 3vm`s without installing them seperately on each vm.apps should be available to all 3vm`s with all adminstrator permissions and updates. Does app-v server related to this.this is complete experiment process only.
The feature you're looking for doesn't exist. As far as Hyper-V is concerned, each VM is an isolated, independent computer. It is possible in 2012R2 to have some shared storage, you could install your applications there, but it's asking for trouble.
if you do not want to reinstall your applications on to the 3 VMs inside the hyper-V guess u have to go out of the way to install RemoteAPP or take the easy way out and go VMware ThinAPP or Citrix XENAPP