Math Stack Exchange
@StackMath
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A Q&A site for people studying math at any level and professionals in related fields
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Joined January 2011
Bounty offered: A step in the completeness proof of first-order logic https://t.co/ctdRFbwR12
#logic
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Bounty offered: An alternate infinite series for Gaussian function - proof https://t.co/vm8oGIgwS5
#sequencesandseries
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Showing that prime factors of a number is congruent to $1 \pmod 5$ https://t.co/svjhZNijDy
#elementarynumbertheory
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Can you answer this? Can I go from the LU factorization of a symmetric matrix to its Cholesky ... https://t.co/03EGcUDLO7
#linearalgebra
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Bounty offered: Intersections of a ray from star domain to its boundary https://t.co/X32ZCPtfP0
#generaltopology
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Bounty offered: Bounds on $\max_i p_i$ in terms of $\sum_i p_i^2$ https://t.co/jaO3SfnyrU
#linearalgebra
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Bounty offered: Asymptotic stability implies the existence of a strong Lyapuno... https://t.co/k7HuC0w1gj
#ordinarydifferentialequations
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How to distinguish between isomorphic and homotopic chain complexes? https://t.co/xVfmIevscS
#homologycohomology
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Find n given that $\lim\limits_{x\rightarrow0} \frac{1-\sqrt{\cos2x}.\sqrt[3]{\cos3x}.\sqrt[4]{\cos4... https://t.co/7sgcI2db95
#limits
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Bounty offered: Conjecture about difference of Fibonacci numbers and primes https://t.co/glg32VFTK1
#numbertheory
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Great answer: Is there any way to find the number of real roots of a polynomial computationally? https://t.co/MRWttKsaho
#polynomials
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Qualifying exam problem (complex analysis) https://t.co/uIXFdYntOz
#complexanalysis
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number of distinct commutators and the cardinality of the center of a group https://t.co/lGVgMQhxAn
#abstractalgebra
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Bounty offered: Homotopy Types of Fibrations in Postnikov Tower encoded by Classifing map https://t.co/pSM8JtoJQV
#algebraictopology
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Can you answer this? Is $5^x+x$ ever prime? https://t.co/VB79gFSjkj
#numbertheory
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Bounty offered: Examples of random variables with discrete distribution https://t.co/9PLXJHJunL
#probability
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Solving for x in logarithmic equation $\log_4(2x) = \frac{1}{2}x^2 - 1$ https://t.co/MKXfv5KGah
#algebraprecalculus
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Bounty offered: Which number is greater A or B? https://t.co/lM1Wf4vN8h
#inequality
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Proving that ${(1-\frac{2}{x^2})}^x < \frac{x-1}{x+1}$ for any $x > 2$. https://t.co/OiB8EB8R0o
#limits
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Can you answer this? Factorize: $a^3(b+c)+b^3(a+c)+c^3(a+b)$. https://t.co/JTL2Kz5Z8Z
#factoring
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