# DSolve unevaluated. System of differential equations

I am trying to solve a system of differential equations with partial derivatives. The initial equation is just one

$$frac{(v-1)^3}{(a(u-1) u v +b (v-1))^2} Big(frac{partial u}{partial x} frac{partial v}{partial y} – frac{partial v}{partial x} frac{partial u}{partial y} Big) = 2 frac{x^3 y^3 (x-1)}{(a(x-1) (y-1) + b x (1-xy))^2}$$

But since a and b are independent, this can be rearranged into 3 different equations: passing the denominators multiplying to each side, and finding the coefficient of $$a^2$$, $$b^2$$, and $$a b$$, we find the three different equations. However, when I feed it to `DSolve`, the input stays unevaluated… Perhaps Mathematica cannot solve this system?

``````eq1 = 2*(-1 + x)*x^3*y^3*(-1 + v(x, y))^2 ==
x^2*(-1 + x*y)^2*(-1 + v(x, y))^3*(Derivative(0, 1)(v)(x, y)*
Derivative(1, 0)(u)(x, y) -
Derivative(0, 1)(u)(x, y)*Derivative(1, 0)(v)(x, y))

eq2 = 2*(-1 + x)*x^3*y^3*(-1 + u(x, y))^2*u(x, y)^2*
v(x, y)^2 == (-1 + x)^2*(-1 + y)^2*(-1 +
v(x, y))^3*(Derivative(0, 1)(v)(x, y)*
Derivative(1, 0)(u)(x, y) -
Derivative(0, 1)(u)(x, y)*Derivative(1, 0)(v)(x, y))

eq3 = 4*(-1 + x)*x^3*y^3*(-1 + u(x, y))*u(x, y)*(-1 + v(x, y))*
v(x, y) == -2*(-1 + x)*
x*(-1 + y)*(-1 +
x*y)*(-1 + v(x, y))^3*(Derivative(0, 1)(v)(x, y)*
Derivative(1, 0)(u)(x, y) -
Derivative(0, 1)(u)(x, y)*Derivative(1, 0)(v)(x, y))

DSolve({eq1, eq2, eq3}, {u(x, y), v(x, y)}, {x, y})
``````

Any help or suggestion would be much appreciated

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