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arXiv 2104.01025math.AP
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具有间断系数的高阶方程边值问题可解的条件

On the conditions for the solvability of boundary-value problems for a high-order equation with a discontinuous coefficient

B. Yu. Irgashev

摘要:

考虑高阶Lavrent'ev-Bitsadze方程的一个边值问题.在证明解的存在性时,出现了“小算子”问题。给出了“小分母”与零分离的充分条件,并给出了一个不能用Fourier方法求解的边值问题的例子,即矩形边值为整数的情形.

英文摘要:

The paper considers a boundary value problem for the high-order Lavrent'ev-Bitsadze equation. Necessary and sufficient conditions for the uniqueness of the solution are found. When substantiating the existence, the problem of "small denominators" arises. Sufficient conditions for the separability of the "small denominator" from zero are found. An example of a boundary value problem not solvable by the Fourier method is given, in the cases rectangle with integer side measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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