Is it possible to mathmaticly do Time-Travel?

Question

Is it possible to mathmaticly do Time-Travel?

Answer 1

Nothing to do with maths, maths and physics simulates dimensional and spacial energy forces, not time.

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Answer 2

Mathematically, there isn't anything wrong with it.  There are plenty of reasons to think it's PHYSICALLY impossible, but the math works out fine.  To go into slightly more detail, closed timelike curves are actually valid solutions to Einstein's equations of relativity, which is part of the reason why they've received so much attention.

Answer 3

Not, at least, not until the spacial displacement problem is solved. Let me explain: Let's say you wanted to travel ahead  six months. Six months from now the earth will be on the other side of the sun, or approx. 186,000,000 miles from where you left it (as the crow flies, so to speak). You must know exactly where the earth will be with respect to the sun six months from now (and how are you going to get there without a spaceship?). Not only that, but six months from now the sun will be somewhere else in its orbit around the center of the Milky Way galaxy. Not only that, but the Milky Way  galaxy has travelled some distance through the universe. Since there is no point of reference in the universe, it is impossible to predict where the galaxy will be at any time in the future, or the past, for that matter. So, I would say, it is not possible do time travel, mathematically or physically.