Your local public library will regularly schedule activities for children, so go there with them and study while they are involved and supervised during such activities. Support your children in finding neighbourhood playmates. They can play while you study, and might only require periodic supervision or checking in. Set time aside for your children before they go to school and when you get home from work. Even a few minutes of focussed time can be an investment with big dividends by meeting their needs at those important times of day.
Hugs are essential.
They haven't seen you all day and will want to get reconnected. You may want to play with them after supper or read to them at bedtime. Let them know ahead of time when you plan to spend time with them so they can look forward to the treat. Try to set some time aside to help them with their homework. They may become more supportive of you trying to do your homework.