My past research interests included differential algebraic equations, nonlinear analysis and relations between symmetries and structural properties.

I recently investigated hierarchical structures, starting from group cohomology, continuing with semi-group theory and ending with lattices and universal algebra.

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awarded Popular Question
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revised How to solve ODEs with constraints using BVP4C?
Added warning that the suggested solution is wrong, and sketched the beginning of a correct solution
23h
comment How to solve ODEs with constraints using BVP4C?
@yagoo I just noticed that my answer is wrong. The transformation to integral form omitted a term involving a derivative of $\lambda$. This probably means that the index of the system is bigger than one, which will require some mastery of the techniques to solve.
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comment Suggestions for Short Examples Contrasting Functional Programming Languages
@D.W. This question might be off-topic, but it isn't too broad. If it were too broad, then there should be a way to narrow it down. The "too broad" close reason contains the following text: "Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs." I have the impression that this clearly shows that the "too broad" close reason is not applicable for this question.
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comment Suggestions for Short Examples Contrasting Functional Programming Languages
community wiki?
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answered Suggestions for Short Examples Contrasting Functional Programming Languages
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answered How can I get the boost numeric bindings?
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answered Installing Boost numeric bindings
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reviewed Approve suggested edit on beta in Nesterov's first method for piece wise linear convex optimization problem
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reviewed Close Fundamental Truths in Philosophy
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reviewed Reopen Meaning of 'extrapolate' : we 'extrapolated from ... principles'?
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reviewed Reopen What is there so much of, is his property? (Locke 1690)
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reviewed Reviewed Contradictory Conclusions - Both cannot be valid
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reviewed Approve suggested edit on Contradictory Conclusions - Both cannot be valid
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answered How to solve ODEs with constraints using BVP4C?
Mar
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reviewed Reviewed What is the difference between Rule Utilitarianism and Act Utilitarianism?
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reviewed Leave Open Can our universe be simulation without simulator?
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reviewed Leave Open What is there so much of, is his property? (Locke 1690)
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reviewed Close Meaning of 'extrapolate' : we 'extrapolated from ... principles'?
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