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12h
asked Equations of motion with replacing the Lagrangian by irrep diagrams generating functional
1d
comment Can a third type of electrical charge exist?
@BMS : formally there is only one type of charge. The sign of charge isn't important.
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revised Can a third type of electrical charge exist?
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answered Can a third type of electrical charge exist?
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revised Variational derivatives of strongly connected diagrams functional in gauge theory
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comment Variational derivatives of strongly connected diagrams functional in gauge theory
@AlexNelson : I didn't think about writing of this simple and full explanation for $K_{\mu}^{a}$ here. Thank you.
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revised Variational derivatives of strongly connected diagrams functional in gauge theory
edited title
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reviewed Approve suggested edit on Variational derivatives of strongly connected diagrams functional in gauge theory
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revised Variational derivatives of strongly connected diagrams functional in gauge theory
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revised Variational derivatives of strongly connected diagrams functional in gauge theory
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comment Variational derivatives of strongly connected diagrams functional in gauge theory
@ACuriousMind : I have added information, but I had to refer to the concrete expressions of the book because I don't imagine how to explain it here briefly.
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revised Variational derivatives of strongly connected diagrams functional in gauge theory
added 234 characters in body
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comment Variational derivatives of strongly connected diagrams functional in gauge theory
@ACuriousMind : yes, I'll add info in a few minutes.
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asked Variational derivatives of strongly connected diagrams functional in gauge theory
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revised Is there any difference between massless Dirac fermions and Weyl fermions?
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reviewed Approve suggested edit on Is there any difference between massless Dirac fermions and Weyl fermions?
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answered Is there any difference between massless Dirac fermions and Weyl fermions?
Aug
24
comment Prove that a derivative with respect to a covariant 4-vector is a contravariant vector operator
@user2582713 : I have provided general proof (for linear transformations) in my first comment. I have read you question inattentively so I have decided that it's about special relativity.
Aug
24
revised Prove that a derivative with respect to a covariant 4-vector is a contravariant vector operator
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Aug
24
comment Prove that a derivative with respect to a covariant 4-vector is a contravariant vector operator
@user2582713 : starting from inverse transformations of covariant 4-vector I get direct contravariant transformation for 4-derivative. You meaned this one, didn't you?