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Date: 5-7-2018
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Date: 3-7-2018
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Date: 27-12-2018
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The second-order ordinary differential equation
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(1) |
This differential equation has an irregular singularity at . It can be solved using the series method
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(2) |
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(3) |
Therefore,
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(4) |
and
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(5) |
for , 2, .... Since (4) is just a special case of (5),
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(6) |
for , 1, ....
The linearly independent solutions are then
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(7) |
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(8) |
These can be done in closed form as
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(9) |
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(10) |
where is a confluent hypergeometric function of the first kind and
is a Hermite polynomial. In particular, for
, 2, 4, ..., the solutions can be written
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(11) |
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(12) |
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(13) |
where is the erfi function.
If , then Hermite's differential equation becomes
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(14) |
which is of the form and so has solution
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(15) |
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(16) |
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(17) |
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للعاملين في الليل.. حيلة صحية تجنبكم خطر هذا النوع من العمل
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"ناسا" تحتفي برائد الفضاء السوفياتي يوري غاغارين
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بمناسبة مرور 40 يومًا على رحيله الهيأة العليا لإحياء التراث تعقد ندوة ثقافية لاستذكار العلامة المحقق السيد محمد رضا الجلالي
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