Science topic
Differential Equations - Science topic
The study and application of differential equations in pure and applied mathematics, physics, meteorology, and engineering.
Questions related to Differential Equations
Differential Logic • 1
Introduction —
Differential logic is the component of logic whose object is the description of variation — focusing on the aspects of change, difference, distribution, and diversity — in universes of discourse subject to logical description. A definition that broad naturally incorporates any study of variation by way of mathematical models, but differential logic is especially charged with the qualitative aspects of variation pervading or preceding quantitative models. To the extent a logical inquiry makes use of a formal system, its differential component governs the use of a “differential logical calculus”, that is, a formal system with the expressive capacity to describe change and diversity in logical universes of discourse.
Simple examples of differential logical calculi are furnished by “differential propositional calculi”. A differential propositional calculus is a propositional calculus extended by a set of terms for describing aspects of change and difference, for example, processes taking place in a universe of discourse or transformations mapping a source universe to a target universe. Such a calculus augments ordinary propositional calculus in the same way the differential calculus of Leibniz and Newton augments the analytic geometry of Descartes.
Resources —
Logic Syllabus
Survey of Differential Logic
I am interested in establishing a presence for our Community of Practice, SIMIODE – Systemic Initiative for Modeling Investigations and Opportunities with Differential Equations, at https://qubeshub.org/community/groups/simiode.
Brian Winkel, Director@simiode.org
The simulation theory is NOT parsimonious because at least partial free will is self-evident. Reason would not exist without the fundamental choice to focus on life. Even animals probably make decisions thus, have souls.
1)After revealing the signs, He cautioned: “Watch therefore: for ye know not what hour your Lord doth come. … “… Be ye also ready: for in such an hour as ye think not the Son of man cometh” (Matthew 24:42, 44).
because they would exterminate themselves.
MAYBE eternal individual consciousness:
1)
Maybe Mormonism and spirituality are both growing because they emphasize personal growth and individuality.
Upon observing anyone’s innermost life, would character flaws always be found? How? Why? My answer: Yes because humans are bound to be the least ethical creatures among other reasons.
Sources:
Experiment Findings Is morality only relative? The law is NOT objective. Moralit...
Longwinded Speculation 1:
Long winded Speculation 2:
TRYING to BEGIN a concise chart:
Maybe we should identify what is the most parsimonious afterlife. Expanding the law of identity, maybe physics can determine the exact afterlife all have coming.
My previous attempts:
Guessing what the afterlife broadly is:
Guessing what the afterlife is NOT.
3)
4)
No because a human without a soul is only material(lacking free will, not having the fundamental choice to reason) thus cannot enjoy whatever the soul was exchanged for. To elaborate, without one’s soul, one is cells of the human body and cannot enjoy anything through lacking senses and missing identity.
Sources:
Of course I sometimes doubt the afterlife is eternal salvation for all, so, I live and deduce what it might be...
The unwritten rule is "don't look suspicious. If people do look suspicious then they either get destroyed or subvert enough TO survive."
Sources:
I think the leading parapsychologist is me.
I don’t think eternal damnation is universal.
I begin scientific inquiry by somewhat philosophizing. Science approximately derives from philosophy. Engineering is roughly derived from science.
My most thought provoking posts so far:
6)
Liberalism is a highly hegemonic and maybe all encompassing force that stems from God as humans would NOT have the ability to reason to implement social justice WITHOUT The Holy Trinity.
Respectfully who agrees that reincarnation is highly improbable? How? Why? My answer: Respectfully, I believe reincarnation is highly improbable for many reasons including but not limited to:
0)Eternal salvation for all is the most probable afterlife.
1)The uniqueness of each organism, meaning if everyone and all organisms are unique then they unlikely share spirits.
1.5)Spirits probably individualize each being.
2)The low probability of absolutes, that would govern the reincarnation cycle, besides, the Holy Trinity(one entity in three different unfalsifiable forms which all double as survival heuristics).
3) More specifically, God the Father is reason, logos, the master of the simulation theory, the creator, Yahweh, and the unmoved mover.
4)Jesus, God the Son, is the perfect individual, humanity’s redeemer, everyone’s savior, and the gate keeper to the fourth dimension(http://www.math.brown.edu/tbanchof/Yale/project13/bible.htm ).
5) The Holy Spirit, the moral guidepost, observably vibes, empathy, etc.
6)My sources are available for more explanation.
Sources:
Ideas are NEVER absolute, so the individual‘s soul (unique consciousness and capacity to reason) travels to another dimension after death.
As long as harm avoidance and reciprocity are met, education can and should decentralize for the sake of diversity, equity and inclusion. Sources:
Metaphysics:
Idea:
Code Ohnemus Paradigm
More Detailed Ideas:
Preprint Education for an Automated World
World Orders:
When God sends me difficulties to deal with, my philosophy and faith should be the worse possibility for me is death and after I finally die, I get eternal salvation, because that philosophy is the most parsimonious.
Respectfully, at least the modern version of liberalism is the natural result of the equality thesis that still acknowledges heritability to further diversity, equity and inclusion. Whereas conservatism directly denies heritability or dodges the question. Also conservatism does less to oppose racial animosity. Hence why liberalism usually wins being both more fair and more sustainable. Also the metaphysics of liberalism(universalist Christianity) are stronger. Plus Universal Eternal Salvation is the most parsimonious afterlife.
Sources
Who else sometimes has less faith in history than in theology? Alternate history is possible. Yet rigorously enough deduced theology can be more certain.
Example/Stimulus:
Philosophy is allowed on ResearchGate to uphold freedom of inquiry. And philosophy can lead to science:
Presentation Differential Equations of Advanced Conception
Who agrees life is more about preventing tragedies than performing miracles? I welcome elaborations.
Since humans are almost always idealistic about an entity, should the idealized advance survival, probably exist, etc.? How? Yes, humans are bound to be idealistic about an entity, thus the idealized should advance survival and probably exist, among other factors. Therefor Progressive Christianity(being probable and good for survival) is rational. Sources:
Research Proposal PhD by Published Work Research Proposal- Harmony Between the...
Who agrees heaven may be more interesting than hell because individuality possibly is kept in salvation more so than in damnation? How? Why? Stimuli:
Who agrees deduction practically begins theology and epistemology? How? Why?
My answer: I agree deduction practically begins theology and epistemology because so many answers are unknown, thus deducing is a useful method. Stimulus:
Who agrees randomness indicates eternal consciousness of each individual being? How? Why? I agree randomness indicates eternal consciousness of each individual being because the individualized spirit(the most fundamental essence of individuation) makes all beings unique and makes the past impossible to use to determine the future.
Sources:
Does the uniqueness of each life form suggest universal-eternal salvation instead of reincarnation? How? Why?
My answer: Yes because reincarnation is less plausible when each life is unique. Plus universal-eternal salvation is plausible because free will(the ability to reason at any level) implies a spirit beyond materialism.
Sources
If we take a description of the solar system in terms of Newton's equations then the solutions are time-reversible.
But many phenomena in nature are observed to be non-reversible, "dissipative", hence not having time-reversible solutions. For instance, a glass falling off the table and breaking.
The big question is: can the second law of thermodynamics be deduced from the fundamental differential equations of physics ?
Or more generally are there differential equations whose solutions are mostly entropy-increasing ?
On the other hand can we find (a system of) differential equations whose solutions are generally entropy-decreasing ? Or in which entropy-decreasing phenomena occur in relatively frequent bursts ? Differential equations which would have solutions in which the pieces spontaneously assemble into the glass on the table ?
Contemporary physics is essentially incomplete (cf. the need for dark matter, dark energy, extra dimensions, etc.). Perhaps in the complete picture entropy is actually strictly conserved. The entropy-increasing forces/fields are counterbalanced by (at present unknown) entropy-decreasing ones, in which entropy-decreasing phenomena occur in relatively frequent bursts.
Then it is this entropy-decreasing aspect of nature that is the main cause of life, the cause of the relatively frequent bursts of increased self-organisation and complexity (which would then be further modulated (or "selected") by the constraints of the environment and the ecosystem).
Perhaps the "collapse of the wave-function" could be approached thermodynamically as well ?
As for example, light beam attenuation is described by the differential equation
dS/dx = -S
which solution is S~e(-x).
But what physical processes could be described by the differential equation:
dS/dt = -t*S or dS/dx = -x*S
which solution is S~e(-t^2) or S~e(-x^2), with t as time and x as distance.
Do you have ideas?
Thank you very much in advance,
Algis
Would anyone like to award me a Doctorate of Divinity? Specifically for this research: https://www.researchgate.net/publication/374913431_Highly_Theoretical_Differential_Equations_of_the_Afterlife?channel=doi&linkId=653609545d51a8012b6479c8&showFulltext=true
Is the golden rule(treat others how you want to be treated) the most fundamental form of morality? So, is individual consciousness the most eternal? How do you figure?
At least according to this article individual consciousness is more eternal than abstract ideas : https://www.researchgate.net/publication/374913431_Highly_Theoretical_Differential_Equations_of_the_Afterlife
I identify as Filipino Jewish yet I have many Celtic Ancestors. Could Celts be the most privileged people?
All races are equal and to insure equal treatment it must be noted that some peoples are more privileged than others. Celts may be, beyond a reasonable doubt, the most privileged. Celts being included in Western Europeans with the Norse and the Germanics is definitely more than a geographic coincidence because all three of those groups have the highest privilege of any race. Western European may be loosely its own race given the intermixing that has occured over such abundant time between Norse, Germanics and Celts. Even contemporary power differentials between different races do not necessarily describe net privileges.
Work Cited
CIA . "Real GDP per capita ." cia.gov . www.cia.gov/the-world-factbook/field/real-gdp-per-capita/country-comparison/. Accessed 12 Sep. 2023.
CIA . " Liechtenstein - The World Factbook - CIA Central Intelligence Agency (.gov) https://www.cia.gov › liechtenstein › summaries." cia.gov . www.cia.gov/the-world-factbook/countries/liechtenstein/summaries/. Accessed 12 Sep. 2023.
Britannica, The Editors of Encyclopaedia. "Liechtenstein". Encyclopedia Britannica, 5 Jul. 2023, https://www.britannica.com/place/Liechtenstein. Accessed 12 September 2023.
Britannica, The Editors of Encyclopaedia. "Alemanni". Encyclopedia Britannica, 15 Sep. 2011, https://www.britannica.com/topic/Alemanni. Accessed 12 September 2023.
US Department of State . "Monaco (08/05) ." state.gov. 2009-2017.state.gov/outofdate/bgn/monaco/51086.htm#:~:text=Ethnic%20groups%20(2003)%3A%20French,90%25%2C%20other%2010%25. Accessed 12 Sep. 2023.
World Directory of Minorities and Indigenous Peoples. " Monaco - World Directory of Minorities & Indigenous Peoples minorityrights.org https://minorityrights.org › country › monaco." minorityrights.org . minorityrights.org/country/monaco/#:~:text=Some%2040%20per%20cent%20of,per%20cent%20of%20the%20population. Accessed 12 Sep. 2023.
CIA. " Luxembourg - The World Factbook Central Intelligence Agency (.gov) https://www.cia.gov › countries." cia.gov. 1 Sep. 2023. www.cia.gov/the-world-factbook/countries/luxembourg/. Accessed 12 Sep. 2023.
Ohnemus , Alexander . "The Antiracist Differential Equation." ResearchGate.net . www.researchgate.net/publication/373434784_The_Antiracist_Differential_Equation. Accessed 28 Aug. 2023.
PopMatters Staff. "TERRY JONES’ BARBARIANS ." popmatters.com. 19 Feb. 2008. www.popmatters.com/terry-jones-barbarians-2496173287.html#:~:text=The%20Celts%20developed%20solar%20calendars,elderly%2C%20the%20infirm%20and%20children. Accessed 28 Aug. 2023.
Dahmer, Adam . "Revisiting the achievements of the Ancient Celts : evidence that the Celtic civilization surpassed contemporary European civilizations in its technical sophistication and social complexity, and continues to influence later cultures.." ir.library.louisville.edu. http://doi.org/10.18297/honors/11. Accessed 28 Aug. 2023.
Dahmer, Adam, "Revisiting the achievements of the Ancient Celts : evidence that the Celtic civilization
surpassed contemporary European civilizations in its technical sophistication and social complexity, and
continues to influence later cultures." (2013). College of Arts & Sciences Senior Honors Theses. Paper 11.
ENCYCLOPEDIC ENTRY. "Europe: Resources ." education.nationalgeographic.org . education.nationalgeographic.org/resource/europe-resources/. Accessed 5 Sep. 2023.
Ohnemus , Alexander . "Interplanetary Reparations CRT Welfare State Proposal." ResearchGate.net . www.researchgate.net/publication/372948149_Interplanetary_Reparations_CRT_Welfare_State_Proposal. Accessed 19 Aug. 2023.
C. CORDUNEANU, Sopra I problemi ai limiti per alcuni sistemi di equazioni differenziali non
lineari, Rend. Acad. Napoli 4 (1958), 98-106.
Cartoon Cosmological Physics: South Park takes place in another universe so it can be absurd.
Differential Equations:
(F)' = A
F: Fiction
A: Absurdity
The show's absurdity is a derivative of being fictional.
What are your thoughts?
Dear colleagues
To find coexisting attractors in a chaotic system, I use the continuation diagram. Here in each iteration, the initial conditions x(0) for the chaotic system are set as the final conditions x(t_final) from the previous simulation.
We do so as we increase the parameter under study (forward continuation diagram), and as we decrease the parameter (backward continuation diagram).
In a system I am studying though, I still know that coexisting attractors exist, and using both continuation diagrams, I still cannot depict all of them. The diagram cannot 'catch' them.
Is there an alternative, or a solution to this?
Which is the best software to solve Fractional Order Differential Equations?
to solve Fuzzy Fractional Integro Differential Equations If anyone owns it, can you send it to me?
Dear all Mathematician,
Many Mathematician written in his/her research paper that fractional integral and differential Equations used in science and technology (write many fields), etc. But actually How we corelate it? can we give some exact practical example of it?
I need some papers links in which we have a solution for system of first order odes using the Laplace variational iteration method (VIM)?
Are there some methods to handle stochastic partial differential equations with an integral term as drift coefficient? One method is semigroup theory but are there other methods to find solution or show the existence of solution. Any references are also welcome.
It seems to me that "determinism" is not a rigorously defined concept. It obviously involves
the order-structure of time T(what determines "before" and "after") as well as the possibility of capturing the instantaneous state of the universe at a given time t in T by an element in a certain phase-space Q.
Our notion of "determinism" will greatly depend on the order-structure of T as well as Q (for instance, its cardinality: is an infinite amount of information required to specify the state of the universe).
The popular concept of "determinism" corresponds to finite computational determinism. T is given the order structure of the natural numbers N and Q is finite. Then the state q(t) of the universe at time t can be computed via a recursive function F from the states q(t') at previous times for t' < t (more commonly the immediately preceeding state state is enough ?).
But suppose that F were not recursive but belonged to some other order of the arithmetical hierarchy (let us say Sigma^1) ? Could we still speak of "determinism" ? What if F were beyond the arithmetical hierarchy ?
What is the best way of extending our notion of "computability" to the case in which T has a dense linear order and/or in which Q has infinite cardinality ? How do we express the "determinism" paradigm of differential equations in a rigorous way ? What if the coeficients of analytic solutions are not computable ?
By "predetermination" I mean the idea that the entire evolution of the universe through time already "exists". Suppose that the law of evolution of the universe F were undefinable in first-order logic but that we had predeterminism. I call this "metaphysical predetermination".
What criteria or what experiment can we conceive of that could distinguish pure chance or free will
from metaphysical predetermination ?
I also note that for us conscious beings it seems arguable that finite computational determinism at least is false.
Consider the class of real elementary functions defined on a real interval I. These
are real analytic functions. How can we characterise their power series ? That is, what
can we say about their coeficients, the structure of the series of their coeficients ?
For instance there are coeficients a(n) given by rational functions in n , or given by combinations of rational functions and factorials functions, computable coeficients, coeficients given by recurrence relations, etc.
It is easy to give an example of a real analytic function which is not elementary. Just solve the equation x'' - tx = 0 using power series. This equation is known not to have any non-trivial elementary solution, in fact it has no Liouville solution (indefinite integrals of elementary functions).
I am working on topology optimization for photonic devices. I need to apply a custom spatial filter on the designed geometry to make it fabricable with the CMOS process. I know there exist spatial filters to remove the pixel-by-pixel and small features from the geometry. However, I have not seen any custom analytical or numerical filters in the literature. Can anyone suggest a reference to help me through this?
Thanks,